Zeto's wireless EEG machine

Simplifying Routine EEGs: Zeto Improves Care for Neurology Practices

Routine EEGs are one of the cornerstones of neurological care[1], yet traditional EEG systems often create unnecessary hurdles. It enables non-emergency diagnosis, extended follow-up of many types of neurological conditions, and the performance of non-emergent EEGs.

For practices with limited resources there can be significant scheduling constraints (and no possibility of scheduling many consecutive patients) to messy gels, sticky pastes, and time-consuming set-up processes, the old way of doing things isn’t just inefficient—it’s inconvenient for patients, eeg technicians and medical providers.

Enter Zeto WR19 EEG headset: a wireless, no-gel EEG solution that’s reshaping how neurologists approach routine testing.

Here’s how Zeto transforms the routine EEG experience and contributes to improving outcomes for doctors, patients, and practices:

1. EEG Solutions When Techs Aren’t Available

EEG Technicians are considered the gold standard for EEG performance, but they’re not always available. Zeto offers flexibility to EEG workflows, enabling medical assistants (MAs) to perform tests when needed. This can help practices reduce reliance on strict scheduling, making it easier to conduct EEGs without waiting for technician availability.

Benefits of Zeto for Routine EEG include:

  • Reduced scheduling complexity: Patients can have their EEG performed during regular office visits without the need to schedule several weeks out. Due to the ease of set-up and lack of cleanup needed, an office can schedule consecutive EEGs, maximizing their resources.
  • Enhanced flexibility: EEGs can be offered on-demand, streamlining workflow and reducing delays in diagnosis.
  • Improved patient compliance: By eliminating scheduling barriers and increasing patient comfort during the recording, patients are more likely to follow through with testing.

“I love it because our MAs (medical assistants), who were trained by the Zeto team, can set up and run the EEG studies. If they ever have issues, I step in to troubleshoot, but this is really rare. We have been able to work more efficiently with the limited resources we have, which is important because I am in a multispecialty private practice group.” – Dr. Komal Rastogi, Granger Medical Clinic.

2. Five-Minute Setup and Ease of Use

Zeto’s wireless, rapid EEG system is designed for efficiency in routine EEG use. The headset enables quick and easy setup in about 5 minutes, meaning less time preparing for the test and more time focusing on the patient. The no-gel electrodes eliminate the hassle of cleanup, and removal is just as simple, taking only one minute.

Why Ease of EEG Setup Matters:

  • Faster setup means less time preparing for the test and more time focusing on patient care.
  • The streamlined process enables practices to serve more patients in a day, improving patient care and speeding up clinical diagnosis.
  • Faster testing means patients spend less time in the office, which they appreciate.

“The setup for routine EEG has decreased to 5-10 minutes from previous durations of 30 minutes to 1 hour. Quality of both EEG and video is very impressive.” – Dr. Raj Gupta, San Jose Pacific Neurology Center PC.

3. No Gel, No Mess, More Patient Comfort

Gone are the days of sticky gels and lengthy cleanup times. Zeto’s no-gel system[2] makes EEGs more comfortable for patients and easier for staff.

Patient benefits include:

  • Comfort: Without messy gels, patients don’t have to deal with the discomfort and inconvenience of washing their hair after the test.
  • Convenience: Patients can resume their day – whether going back to work, school, or home – immediately after the procedure.

This improved patient experience increases compliance with testing, making it easier for neurologists to provide timely care.

“Patients find the experience quicker and more streamlined, resulting in shorter visits compared to traditional setups. Overall, they respond positively to the technology. I have personally worn the Zeto headset for extended periods and can attest to its comfort.” – Dr. Christina M. Patterson, UPMC

4. Remote Access for Results, Anytime, Anywhere

Zeto’s cloud-based platform enables neurologists to access EEG results remotely[3], providing flexibility. This makes it possible for tests to be performed in one location while neurologists review the results if needed in real time from another, facilitating faster diagnoses and streamlined workflows.

Benefits for neurologists:

  • Efficient workflows: No need to be physically present to review results and make a diagnosis.
  • Faster diagnoses: Immediate access to EEG studies speeds up the diagnostic process.

“I’ve been remotely reading EEGs done by the Zeto EEG headset for one of my local colleagues through Zeto’s EEG cloud platform since the beginning of 2022. How it works: EEGs are done in the clinic here in San Diego by trained staff. The EEG is streamed and saved in real-time to the Zeto cloud and I receive a notification when the recording is finished. At that point, I go online, read the EEG study, and prepare the report. Overall, the process is easy, fast, and straightforward.” – Dr. Boris Khamishon, Neurology San Diego

5. Transforming Neurology Workflows

By integrating Zeto into their practices, neurologists have found their workflows become more efficient, patient-friendly, and seamless. The ability to offer on-demand EEGs keeps things running smoothly and increases the speed of care.

Key impacts include:

  • Increased patient compliance: Patients are more likely to follow through with testing when it’s convenient and hassle-free.
  • Streamlined care: On-demand EEGs eliminate bottlenecks, enabling for faster diagnoses and improved outcomes.
  • Improved patient care: Timely EEG testing ensures patients receive the diagnostics they need without unnecessary delays, enhancing treatment planning and overall care quality.

“In the short term, we were able to quickly address a backlog of 100+ patients (and incoming new ones) within just a few weeks. In the long term, with how easy the system is to use, we are not bottlenecked to only certain staff members and their availability to utilize the device and ensure essential diagnostics were getting completed in a timely manner.” – Dr. Randi Baculi, RHBNeuro

6. Perfect for Solo Neurologists: Ease of Use That Saves Time and Costs

For solo neurologists, Zeto’s intuitive design makes performing EEG studies seamless. The headset is easy to apply with minimal artifacts[4], enabling practitioners to focus on patient care without the need for additional staff or complicated scheduling.

Benefits include:

  • Increased efficiency: Solo practitioners can perform EEGs independently without needing to rely on additional staff, and use the time between studies for administrative tasks or patient care.
  • Flexibility: Ideal for part-time neurologists or those performing a limited number of studies per week.
  • Accessible support: Zeto offers easy access to technical assistance for troubleshooting when needed.

“I’m my own technician. I work part-time and perform 2 to 4 EEG studies a week, or about 12-15 studies a month. Technical assistance is easy when I have questions. It’s easy to use and maneuver. I usually read the results immediately after seeing patients and share the results in near real-time.” Dr. Virginia Thornley, Elite Neurology

7. Cloud-Based Software: Seamless and Up-to-Date Technology

Zeto’s cloud platform ensures that its software is always up-to-date, requiring minimal IT expertise or budget.

Benefits include:

  • User-friendly interface: The intuitive design makes reading EEGs straightforward and accessible.
  • Cross-device compatibility: Works effortlessly across laptops, phones, tablets, and desktop computers.
  • Streamlined accessibility: The cloud system provides reliable access, eliminating the need for complex setups or maintenance.

“The cloud interface is truly wonderful – user-friendly, easy to access, and visually appealing. I’ve used it on various devices, and it has consistently provided a seamless and headache-free experience.” Dr. Christina M. Patterson, UPMC

Zeto’s cloud-based platform meets stringent data security standards, such as HIPAA compliance, ensuring patient data is safe, accessible, and protected.

8. Report Writer: Designed with Neurologists in Mind

Zeto’s report writer features customizable templates that meet the specific needs of neurologists, enabling easy adjustments.

Benefits include:

  • Time-saving templates: Streamlined templates reduce the time spent on documentation.
  • Accessibility: Reports can be reviewed and adjusted from any device with internet access using the same login credentials.
  • Flexibility: Neurologists can adapt templates to align with individual practice preferences or patient needs.

“The biggest advantage is the Zeto report writer. The template features for the report are designed perfectly for a neurologist’s needs, and it’s very easy to make adjustments. The program is also easy to maneuver, and you can read the EEGs from any computer or device with a stable internet connection using the same login credentials.” – Dr. Boris Khamishon, Neurology San Diego

9. Accommodates All Hair Types

Zeto’s innovative electrode design eliminates barriers for patients with thick, curly, or styled hair, such as braids or dreadlocks.

Benefits include:

  • Patient comfort: No need for patients to alter or remove hairstyles, reducing stress and preserving dignity.
  • Cultural inclusivity: Accommodates protective hairstyles often tied to culture and identity.
  • Unique electrodes: Zeto’s patented electrodes can move past braids, cornrows, twists, or dreadlocks up to 1 inch thick and even work with thicker hair bundles.

We’ve written an entire blog on this topic: Textured Hair EEGs: Accessibility for All Hair Types 

10. Signal Quality on Par with Traditional EEG Systems

Zeto is committed to delivering high-quality EEG brain monitoring results. With full-montage 10-20 electrode placement and advanced technologies such as Active Electrode Technology (AET) and Dynamic Noise Cancellation (DNC), Zeto provides data that is non-inferior to traditional EEG systems.

Benefits include:

  • Reliable results: Signal quality is the same as traditional EEG systems but the setup is easier and faster and no gel is included.
  • Evidence-backed performance: Clinical studies across 50 subjects demonstrated parity between Zeto EEG (zEEG) and clinical EEG (cEEG) systems.

“I like the idea of quick setup using soft gel electrodes like Zeto. It’s an easy & efficient way to do quality routine video EEGs”. Dr. Jaivir S. Rathore, Falcon Advanced Neurology Center.

For a deeper dive into Zeto’s signal quality, read our article, “Comparison of Dry Electrode EEG System with Conventional EEG System,” or review the abstract, “Technical Validation of the Zeto Wireless, Dry Electrode EEG System,” presented at the American Epilepsy Society.  

Zeto’s signal quality meets the performance and technical standards outlined in EEG Guidelines provided by American Clinical Neurophysiology Society (ACNS).

The Future of Routine EEGs is Here

Zeto’s WR19 EEG system is more than a technological upgrade — it’s a practical solution that addresses the inefficiencies of traditional EEG workflows. By making EEGs faster, more comfortable, and more accessible, Zeto is helping neurologists provide better care for their patients.

Take advantage of Zeto’s end-of-year offer for neurology practices: upgrade your routine EEG workflow with our wireless, no-gel EEG system by the end of the year and enjoy the . Don’t miss this limited-time opportunity to revolutionize patient care and streamline your practice — offer ends December 20th, 2024!

References:

  1. Worrell, G. A., Lagerlund, T. D., & Buchhalter, J. R. (2002). Role and Limitations of Routine and Ambulatory Scalp Electroencephalography in Diagnosing and Managing Seizures. Symposium on Seizures, 77(9), 991–998.
  2. Sensors (Basel). (2014, July 18). Dry EEG Electrodes – PMC, 14(7), 12847–12870. doi: 10.3390/s140712847
  3. Reider-Demer, M., & Shah, V. (2019, October). Telemedicine & Epilepsy: Your Smartphone Is Not Just for Communication – It Can Be Your Medical Care on the Go! Practical Neurology.
  4. Lopez-Gordo, M. A., Sanchez-Morillo, D., & Pelayo Valle, F. (n.d.). Common Artifacts During EEG Recording. In Electroencephalography (EEG): An Introductory Text and Atlas of Normal and Abnormal Findings in Adults, Children, and Infants. NCBI Bookshelf.

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Textured Hair EEGs: Accessibility for All Hair Types

Getting an EEG shouldn’t be a hassle – no matter your hairstyle. For most patients, an EEG test typically requires no special preparation. However, for individuals with curly hair, textured hair or specific hairstyles, such as braids, dreadlocks, cornrows, twists, hair extensions or coily/kinky curly hair, the setup process can be more challenging than it needs to be. Thanks to innovative technology by Zeto, there’s a solution that makes textured hair EEG accessible and efficient for everyone.

Understanding Hair Types

Before addressing the challenges and solutions, it’s important to understand that hair types vary widely based on texture and curl patterns. The commonly recognized Andre Walker Hair Typing System classifies hair into four main types:

Andre Walker Hair Typing System

Type 3 and Type 4 hair, in particular, tend to be thicker, curlier, or kinkier, which can present unique challenges for textured hair EEG setups. Additionally, protective hairstyles such as braids, cornrows, and dreadlocks further complicate traditional EEG setups. For many patients, even getting a test can be difficult or uncomfortable, creating unnecessary barriers to essential healthcare.

EEG and Hair Diversity: The Urgent Need for Inclusive Solutions

For decades, EEG technology has not been inclusive of everyone. Traditional EEG electrodes are designed to sit flat on the scalp, which is especially challenging for people with thick, curly hair or dreadlocks. The process can become even more difficult, requiring technologists to ask patients to alter or remove their hairstyle to achieve quality EEG data.

Imagine being told that you need to take down intricate braids or cut your dreadlocks – hairstyles often deeply tied to culture, identity, and personal expression – just to undergo an EEG. What may seem like a minor inconvenience to some can become a major obstacle to others, delaying critical diagnostic tests and adding stress to an already daunting medical experience.

This issue has disproportionately impacted patients, whose natural hair types and protective hairstyles are often incompatible with the rigid requirements of traditional EEG technology. As a result, many patients have encountered frustrating barriers to accessing the care they need.

Zeto Offers EEGs That Work for All Hair Types

The good news is that Zeto EEG technology is removing these barriers. Zeto’s wireless EEG headsets are designed to accommodate all hair types, from straight and wavy to curly and coily, including protective styles like dreadlocks, cornrows, and braids.

Unlike traditional EEG systems, Zeto headsets do not require the use of abrasive pastes or applications of messy electrolytes to obtain accurate readings. Instead, it sits comfortably on the head, regardless of hair volume, texture, or style. This ensures that patients with textured hair or complex hairstyles no longer need to worry about altering their hair for the test.

With Zeto, EEGs are no longer a stressful ordeal but a straightforward, accessible solution for all patients.

The photos  illustrate the flexibility of dry electrodes used in the Zeto EEG system. Any of the three bristles touching the skin would provide sufficient skin-to-electrode contact for stable signal recording.

Zeto’s Unique Electrodes

Zeto’s electrodes are designed to work with a wide variety of hair types and densities. Flat electrodes are ideal for areas without hair, such as the forehead. Taller electrodes with legs are designed to navigate through thicker hair, allowing for easy placement on the scalp, even with complex hairstyles.

Zeto’s patented electrode tips seamlessly move through hair and braids without leaving behind any sticky residue. The electrodes are capable of moving past braids, cornrows, twists, or dreadlocks up to 1 inch thick, and can even work with thicker hair bundles, depending on the style.

Zeto offers EEG solution for protective hairstyles

Convenient for EEG Technologists

Zeto makes life easier for EEG technicians by eliminating time-consuming skin preparation and messy gels. The setup is quick and efficient, even for patients with type 4 kinky/coily hair, taking just 5-10 minutes at most. Zeto’s headsets come with handy light-based signal quality indicators  built into each electrode that lets users know when the electrodes have a good connection (green light) or if they need a little adjustment (Red, orange, or yellow ). The adjustment is made by rotating and repositioning the electrode, to make sure they’re properly touching the scalp.

Comfortable for Patients

Zeto provides a significantly better EEG experience for patients. The setup is faster and more comfortable, with no sticky gels or adhesives to wash out afterward. There’s no need for special preparation or skin abrasion, which minimizes the risk of irritation or discomfort. Additionally, Zeto’s electrodes are single-use, eliminating the risk of cross-contamination. Patients enjoy a hassle-free experience with precise and reliable results, all without being asked to change or remove their hairstyle.

Many patients have shared that after their Zeto EEG test, they could go about their day as planned, without the need to wash or restyle their hair.

Remaining Limitations

While Zeto’s EEG technology works with most hairstyles, blocking the electrode tips from contacting the scalp may still prevent accurate recordings. However, weaves or sew-ins that allow scalp contact are generally not an issue for Zeto’s electrodes.

EEGs should be accessible to everyone, regardless of hairstyle. Zeto is proud to offer a solution that makes brain monitoring more inclusive, comfortable, and efficient. By offering innovative EEG headsets with unique electrodes, Zeto ensures that no patient is left behind due to their hair type or style.

From WR19 to Zeto ONE: Inclusivity and Reliability Across 90,000 Studies

Zeto has two innovative EEG headsets: the WR19 for EEG studies up to 6 hours and the Zeto ONE for continuous  monitoring for 24+ hours. Both headsets use the same electrode technology and work seamlessly with textured hairstyles, ensuring reliable and high-quality EEG recordings.

Zeto EEG headsets, WR19 and Zeto ONE, offer EEG solutions for all hair types.


Zeto’s commitment to accommodating various hair types and styles began with the clearance of our first-generation WR19 device in 2018. From the outset, the WR19 was capable of recording EEGs on patients with diverse hairstyles and hair types without requiring additional effort or compromising signal quality. This dedication to inclusivity and performance was carried forward into the design of our next-generation device, the Zeto ONE EEG system, launched in 2024. 

Out of the 90,000 EEGs conducted using Zeto’s EEG system across over 200 healthcare facilities in the U.S., there has not been a single complaint or failure related to hair type.

Say Goodbye to Bad Hair Days

To find out more about Zeto’s patient-friendly EEG technology and how it can work for you, explore our website or schedule a consultation with our team. Zeto is committed to making brain monitoring accessible for everyone, no matter your hair type or style.

We explored the compatibility of Zeto EEG with different hair types, including braids, cornrows, and kinky/coily hair, in a recent webinar. During the webinar, we also conducted live demos with various hairstyles to demonstrate how well Zeto EEG works. Be sure to check it out! 

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Zeto Among America’s Fastest-Growing Private Companies on the 2024 Inc. 5000 List

NEW YORK, August 13, 2024 – Inc. revealed today that Zeto, Inc. ranks No. 1311 on the 2024 Inc. 5000, its annual list of the fastest-growing private companies in America. The prestigious ranking provides a data-driven look at the most successful companies within the economy’s most dynamic segment—its independent, entrepreneurial businesses. Microsoft, Meta, Chobani, Under Armour, Timberland, Oracle, Patagonia, and many other household-name brands gained their first national exposure as honorees on the Inc. 5000.

“We are truly honored to be recognized on the Inc. 5000 list of America’s fastest-growing companies. This achievement reflects the dedication and hard work of the entire Zeto team. With the recent FDA 510(k) clearance of our groundbreaking next-generation EEG brain monitoring product, Zeto ONE, we are confident that our growth will continue as we advance EEG monitoring in critical care, outpatient, and home settings. The market potential for our solutions is enormous, offering significant opportunities for continued growth and impact,” stated Aswin Gunasekar, Founder and CEO of Zeto.

The Inc. 5000 class of 2024 represents companies that have driven rapid revenue growth while navigating inflationary pressure, the rising costs of capital, and seemingly intractable hiring challenges. Among this year’s top 500 companies, the average median three-year revenue growth rate is 1,637 percent. In all, this year’s Inc. 5000 companies have added 874,458 jobs to the economy over the past three years.

For complete results of the Inc. 5000, including company profiles and an interactive database that can be sorted by industry, location, and other criteria, go to www.inc.com/inc5000. All 5000 companies are featured on Inc.com starting Tuesday, August 13, and the top 500 appear in the new issue of Inc. magazine, available on newsstands beginning Tuesday, August 20.

“One of the greatest joys of my job is going through the Inc. 5000 list,” says Mike Hofman, who recently joined Inc. as editor-in-chief. “To see all of the intriguing and surprising ways that companies are transforming sectors, from health care and AI to apparel and pet food, is fascinating for me as a journalist and storyteller. Congratulations to this year’s honorees, as well, for growing their businesses fast despite the economic disruption we all faced over the past three years, from supply chain woes to inflation to changes in the workforce.”

To learn more about Zeto’s products, please visit: https://zeto-inc.com or email us at info@zetoinc.com.

About Zeto, Inc.

Zeto, Inc., an award-winning medical technology firm, is at the forefront of advancing EEG brain monitoring and diagnostics for healthcare. Offering wearable devices, Zeto makes brain monitoring accessible across various clinical settings including the ICU, ED, hospital, office, and home. Supported by a feature-rich cloud-based platform, Zeto provides nationwide monitoring and interpretation services rendered by neurologists, alongside AI-enabled notifications for conditions such as seizures and epilepsy. Zeto plans to expand its capabilities in the future to recognize and manage conditions such as depression and traumatic brain injury. 

More about Inc. and the Inc. 5000

Methodology

Companies on the 2024 Inc. 5000 are ranked according to percentage revenue growth from 2020 to 2023. To qualify, companies must have been founded and generating revenue by March 31, 2020. They must be U.S.-based, privately held, for-profit, and independent—not subsidiaries or divisions of other companies—as of December 31, 2023. (Since then, some on the list may have gone public or been acquired.) The minimum revenue required for 2020 is $100,000; the minimum for 2023 is $2 million. As always, Inc. reserves the right to decline applicants for subjective reasons. Growth rates used to determine company rankings were calculated to four decimal places.

About Inc.

Inc. Business Media is the leading multimedia brand for entrepreneurs. Through its journalism, Inc. aims to inform, educate, and elevate the profile of our community: the risk-takers, the innovators, and the ultra-driven go-getters who are creating our future. Inc.’s award-winning work achieves a monthly brand footprint of more than 40 million across a variety of channels, including events, print, digital, video, podcasts, newsletters, and social media. Its proprietary Inc. 5000 list, produced every year since its launch as the Inc. 100 in 1982, analyzes company data to rank the fastest-growing privately held businesses in the United States. The recognition that comes with inclusion on this and other prestigious Inc. lists, such as Female Founders and Power Partners, gives the founders of top businesses the opportunity to engage with an exclusive community of their peers, and credibility that helps them drive sales and recruit talent. For more information, visit www.inc.com.

Source – PRNewswire

Zeto Offers Reliable FDA Cleared Seizure Detection Software

Advancements in seizure detection technology provide essential tools for precise diagnosis and management of neurological conditions. Zeto integrated a full suite of FDA cleared EEG Trending, Seizure, and Spike Detection tools from encevis into the Zeto cloud platform for quick and seamless assessment of full montage EEG signals in the ICU, inpatient and outpatient environment providing more capability vs. competitors.

Zeto’s cutting-edge EEG solutions are designed to enhance patient care and streamline clinical processes. Encevis is powered by the AIT Austrian Institute of Technology, a renowned research and technology organization in Europe, and their EEG analysis software is widely utilized and peer reviewed by physicians across the world.

Zeto Offers:

Zeto EEG Setup Time< 5 minutes after only 2 hours training
Full Montage EEG19 channels, non-inferior to traditional EEG[3]
Time to Seizure Detection < 2-3 minutes
Seizure Detection [4]High sensitivity at low false alarm rates. Proven by three independent clinical trials to get a reliable system that will provide a detailed overview of seizures and suspicious EEG activity. [2, 4]
Spike Detection [5]Detects spikes and sharp waves with a very high sensitivity combined with a high specificity. Sensitivity of 89% was measured together with a specificity of 70%.[1, 5]
EEG Trending [4,5,6]Graphically visualizes the results of several hours of EEG to allow a quick assessment of the state of the patient. The software works in near real time and allows reading of trends in the functional state of the patient’s brain in one glimpse.[1]
Amplitude-Integrated EEG  [6]General amplitude and symme­try can be read easily in the quantitative EEG panels and in the amplitude-integrated EEG. This al­lows a quick assessment of the state and trend of the patient
Burst Suppression [6]Burst suppression events and the relative amplitude attenuation including suppression time of the bursts.
Artifact Reduction: PureEEG [1,2]PureEEG removes artifacts automatically. It removes artifacts such as electrode movements, muscle contractions, line noise and head movements, etc. 
Notification FeaturesOne-time setup enables notification templates (email or text) to be shared automatically with a select group of stakeholders (physicians, nurses, techs) when programmable seizure thresholds are exceeded. This is not a seizure alarm but a notification infrastructure that informs decision makers about the results of the Encevis seizure detection tool.

Seizure Detection Technologies and Their Impact

EEG trending plays a pivotal role in patient assessment, allowing clinicians to view near real-time data and react swiftly to patient needs. Innovations such as amplitude-integrated EEG and burst suppression analysis provide deeper insights, while PureEEG technology effectively reduces artifacts, ensuring cleaner and more accurate readings.

Integrated EEG Trending, including Burst Suppression, Seizure Detection and Load:

Zoom-In of the EEG Trending Panel:

Enhancing Clinical Efficiency

The integration of seizure detection features streamlines clinical workflows and enhances communication among healthcare professionals. This is achieved through effective notifications  that alert clinical staff about critical patient developments, improving decision-making and patient care.

Seizure Detection vs Seizure Burden

Seizure detection and seizure burden are two critical but distinct concepts in epilepsy management. Seizure detection focuses on the immediate identification and recognition of individual seizure events using technologies such as EEG monitoring systems, which can pinpoint abnormal brain activity in near real-time. This allows for timely intervention and management during an episode. On the other hand, seizure burden refers to the cumulative impact of seizures over time, encompassing the frequency, duration, and severity of the episodes. While seizure detection aims to identify seizures as they happen, seizure burden assesses the broader, ongoing effects of the condition. 

Zeto offers an FDA-cleared seizure detection tool compared to competitors that only perform seizure burden.

AI-enabled Notifications for Seizure

AI-enabled notifications provide near real-time notifications enhancing timely intervention and patient management. It works by continuously analyzing EEG data in near real-time using advanced algorithms, instantly notifying healthcare providers when abnormal brain activity indicative of a seizure is detected.

FeatureBenefit to Clinicians
Rapid EEG SetupMinimizes patient discomfort and maximizes clinical efficiency
Full Montage EEGProvides comprehensive brain activity analysis
High Sensitivity with Low False PositivesEnhances diagnostic accuracy
Amplitude-Integrated EEGSimplifies interpretation of EEG data
Burst Suppression AnalysisCrucial for assessing severe neurological conditions
Artifact Reduction with PureEEGEnsures clarity and accuracy of EEG readings

Zeto’s advancements in EEG technology mark a significant milestone in neurological care, promising improved patient outcomes and operational efficiencies. The future of EEG monitoring looks bright, with ongoing innovations poised to further revolutionize the field.

To learn more about Zeto’s wireless, dry-electrode, full-montage EEG headset with remote monitoring and seizure detection, please contact us to schedule a chat and a demo.

References:

[1] PureEEG: Automatic EEG artifact removal for epilepsy monitoring, Hartmann, M.M., Schindler, K., Gebbink, T.A., Gritsch, G., Kluge, T., Neurophysiologie clinique/Clinical Neurophysiology, November 2014

[2] https://www.accessdata.fda.gov/cdrh_docs/pdf17/K171720.pdf

[3] https://www.accessdata.fda.gov/cdrh_docs/pdf17/K172735.pdf

[4] Seizure detection

[5] Spike detection

[6] EEG monitoring in the intensive care

Zeto obtains FDA 510(k) clearance for its groundbreaking next-generation EEG brain monitoring product, ONE.

SANTA CLARA, Calif., June 4, 2024 /PRNewswire/ — Zeto, Inc., a privately owned medical technology company, has announced that its innovative next-generation product, named the ONE, has received 510(k) clearance from the U.S. Food and Drug Administration (FDA).

Zeto ONE is approved for EEG Brain Monitoring across hospital, home, ambulance, and air transport environments.

Electroencephalography (EEG) needs in health care remain significantly unmet due to permanent shortage of trained EEG technologists. New EEG products need to be easy to use for any staff, comfortable to the patient and provide excellent signal quality. However, hospitals also require comprehensive full-montage1,2 EEG for thorough coverage of clinically significant events, video capabilities to aid physicians in interpretation, and dependable diagnostic software for neurological emergencies. Without these elements, genuine progress in neurological care will remain unrealized.

ONE consists of a user-friendly headset equipped with 21 soft-tip electrodes positioned according to the commonly followed 10-20 EEG3 system, accompanied by intuitive LED feedback for easy adjustments. It requires minimal training for any healthcare professional to operate effectively. The portable recording device captures patient video and audio, offering display and recording controls, as well as AI-enabled notifications for seizure activity4, crucial in critical or emergency scenarios5,6. ONE seamlessly streams data to the Zeto Cloud, enabling live remote interpretations by board-certified neurologists. In addition to its role as a point-of-care system, it serves as a comprehensive EEG platform, enabling various tasks such as workflow management, patient scheduling, and report generation.

Susan Herman, M.D., Professor and Vice Chair of Clinical Affairs, Department of Neurology at Barrow Neurological Institute said, “Zeto ONE is a breakthrough EEG system, revolutionizing many aspects of emergency EEG acquisition. We know that up to 40% of brain injured emergency department and intensive care patients may experience seizures, which are often subclinical and require EEG for diagnosis. ONE fills a gap for hospitals that lack EEG resources – provides streamlined point-of care application of full 10-20 electrodes, video and audio recording, AI triage tools, and efficient connectivity to the interpreting neurologist. This enhanced workflow ensures that EEGs have high technical quality and accurate interpretations in our most critically ill patients.”

Zeto’s Founder and CEO, Aswin Gunasekar stated, “Breakthrough changes arise from the cumulative effect of years of gradual improvements. ONE is a culmination of 8+ years of customer centric product development by our industrious team. As our first-generation Wrap (WR19) headset sees increasing adoption for short-term EEGs, ONE strengthens our portfolio by democratizing access to continuous EEG brain monitoring and diagnostics. We anticipate ONE to notably advance EEG monitoring in critical care, outpatient and home settings.”

Christina Patterson, MD, Associate Professor of Pediatrics and the Director of the Epilepsy Center at UPMC Children’s Hospital of Pittsburgh said, “Zeto ONE will be a profound help to our pediatric patients by increasing access to much needed diagnostic and therapeutic interventions, particularly in Emergency Departments and Intensive Care Units where rapid application and complete EEG can make all the difference in getting a critically ill child the care they need.”

“Many hospitals in the world have no ability to obtain EEGs.,” said Robert S. Fisher, M.D., Ph.D., Director of the Stanford Epilepsy Center and former President of the American Epilepsy Society. “Zeto ONE will make it possible for them to do so. For hospitals and offices with EEG capabilities, ONE will make obtaining the EEG more efficient for the medical personnel and more comfortable for the patients.”

Zeto ONE is now available for sale. For inquiries, please call: +1 (866) 527-5549, +1 (833) ZETO EEG or email: sales@zetoinc.com

References:  

  1. Herman, S.T., et al. (2015). “J Clin Neurophysiol,” 32(2):87-95.
  2. Kolls, B.J., and Husain, A.M. (2007). “Epilepsia,” 48(5):959-65.
  3. Klem, G.H., Lüders, H.O., et al. (1999). “Guidelines of the International Federation of Clinical Physiology,” EEG Suppl. 52.
  4. Enabled by Encevis. Rommens, N., et al. (2018). “Improving staff response to seizures on the epilepsy monitoring unit with online EEG seizure detection algorithms,” Epilepsy & Behavior, July 2018.
  5. Hillman, J., et al. (2013). “National Library of Medicine,” 6(6).
  6. Madžar, D., et al. (2016). “J Neurol,” 263:485-491.

About Zeto, Inc.

About Zeto, Inc.

Zeto, Inc., an award-winning medical technology firm, is at the forefront of advancing EEG brain monitoring and diagnostics for healthcare. Offering wearable devices, Zeto makes brain monitoring accessible across various clinical settings including the ICU, ED, hospital, office, and home. Supported by a feature-rich cloud-based platform, Zeto provides nationwide monitoring and interpretation services rendered by neurologists, alongside AI-enabled notifications for conditions such as seizures and epilepsy. Zeto plans to expand its capabilities in the future to recognize and manage conditions such as depression and traumatic brain injury. 

To learn more about Zeto’s products, please visit: https://zeto-inc.com or email us at info@zetoinc.com.

Source – PRNewswire

EEG in the ICU: Brain Monitoring in Critical Care Settings and Emergency Departments

EEG in the ICU offers unparalleled insight into the neurological status of patients. Facilitating ease of use is a cornerstone of making sure this vital marker is not overlooked.

In the fast-paced world of healthcare, where every moment can be crucial, monitoring a patient’s neurological status is often overlooked in emergency situations. However, research findings suggest that integrating EEG (electroencephalogram) monitoring into critical healthcare settings can have profound benefits, especially for patients requiring prompt neurological evaluation

EEG in the ICU

In Intensive Care Units (ICUs), where vigilant monitoring of patient health is crucial, traditional focus areas like heart rate, blood pressure, and oxygen levels are routinely scrutinized. EEG monitoring in the ICU is often used for continuous, long-term monitoring of brain activity in critically ill patients. It’s particularly crucial for detecting non-convulsive seizures, assessing the depth of coma, and monitoring for changes in brain function in patients with severe brain injuries, stroke, or those at risk of neurological deterioration. The second biggest neurological emergency after stroke is Status Epilepticus, defined as “A seizure that lasts longer than 5 minutes, or having more than 1 seizure within a 5 minute period, without returning to a normal level of consciousness between episodes is called status epilepticus. This is a medical emergency that may lead to permanent brain damage or death.” For more info see here. 

Unfortunately, the monitoring of brain activity doesn’t receive the same level of attention. This is despite various critical care and neurophysiology societies providing guidelines for EEG indications in the ICU. This oversight can be critical, especially since conditions like non-convulsive seizures can go unnoticed without proper EEG monitoring. Research indicates that timely access to EEG monitoring is vital for effective patient management, and any delays can have significant impacts, not just on patient outcomes but also on hospital operational efficiencies.

Challenges in the ICU

The Neurocritical Care Society guidelines advise that patients suspected of having Nonconvulsive Status Epilepticus in ICU should get an EEG test within 15 to 60 minutes.

The primary challenge in intensive care unit is the lack of specialized EEG or neurology staff, which can lead to delays in detecting and treating critical neurological conditions.

The complexity of traditional EEG equipment also poses a challenge, as it requires time and expertise to set up and interpret. This can be problematic in the ICU, where rapid response and treatment are often necessary. Non-convulsive seizures, for instance, are common in critically ill patients but can be difficult to detect without proper EEG monitoring. Studies suggest that delays in EEG access can extend hospital stays, emphasizing the need for more accessible EEG solutions.

A pressing challenge is accurately assessing brain activity, especially in post-cardiac arrest patients. While vital signs like heart rate and blood pressure are meticulously monitored, determining the status of the brain remains a complex task. In the case of patients who have experienced cardiac arrest, assessing neurological function without EEG is nearly impossible. These patients may exhibit varying degrees of consciousness to comatose, making it difficult to discern subtle neurological changes. Traditional methods often fall short in providing a comprehensive understanding of brain activity, highlighting the critical need for accessible and efficient EEG monitoring solutions like that of Zeto EEG.

Additionally, a key factor with EEGs in the ICU is timing. Even large academic hospitals offering 24/7 coverage of conventional EEG have reported a median delay of four hours to initiate EEG monitoring. Additionally, the process of applying EEG leads on a patient’s head using a traditional EEG system further contributes to these time delays, impacting the speed at which critical monitoring can begin.

Another major barrier to effectively leveraging EEG in the ICU is the lack of bedside diagnostic capabilities. Live, remote interpretation by a physician is simply a must, to ensure that an expert is on hand to diagnose and treat in a timely manner. Live video and continuous monitoring by remote techs would provide the highest quality of care in these situations. 

Solving the Problem of EEG in the ICU, With Zeto

Zeto’s EEG system is designed to meet the unique demands of the ICU. Zeto’s EEG headset is full-montage with single-use electrodes. Additionally, it is wireless and portable, eliminating the need to wait for a cart to be brought into the ICU. It offers a rapid setup and user-friendly interface, making it accessible to healthcare professionals who may not have specialized training in neurology. This ease of use is a significant advantage in the ICU, where time and accessibility are crucial. The system’s design allows for quick application and immediate monitoring, facilitating faster response times in critical situations.

With Zeto EEG, bedside diagnostics becomes possible, with remote, continuous real-time monitoring by EEG techs and interpretation services from neurologists available, Zeto EEG facilitates high quality care. 

The Zeto EEG system also addresses the challenge of interference from other medical devices in the ICU with its state-of-the-art active electrode technology, noise shielding and noise cancellation technology.  

Benefits and Features of Zeto EEG in the ICU

Zeto’s EEG system offers several key features that make it particularly suited for the ICU environment:

  • Bedside Diagnostics with Accurate Seizure Detection: Timely detection of non-convulsive seizures is crucial for patient care. Zeto’s system integrates FDA-cleared seizure detection with notifications, ensuring that these critical events are not missed. Learn more about seizure detection tool here.
  • Live video through the cloud: Zeto is compatible with any integrated or USB-enabled camera. The cloud’s live/remote capabilities allow for real-time observation of patients during suspected seizures. 
  • The portability and ease of setup of the Zeto system mean it can be quickly deployed and used across different patients, adapting to the dynamic and fluid nature of the ICU. 
  • Special response service for Stat EEG (Status Epilepticus): If you do not have neurologists available to interpret your EEGs, you can easily order this service through our cloud platform. 
  • Remote monitoring by EEG techs
  • Remote monitoring by board certified neurologists

EEG in the ED

In Emergency Departments (EDs), EEG is typically used for acute diagnostics rather than long-term monitoring. It may be employed to differentiate between epileptic seizures and other conditions (like syncope, psychogenic nonepileptic seizures, or coma) or to confirm status epilepticus when a seizure is not visible.

While ED staff excel at providing immediate care for life-threatening conditions, brain activity monitoring is not always a routine part of the process. However, research findings suggest that

integrating EEG monitoring into the ED’s toolkit can have far-reaching benefits,

especially for patients with conditions requiring prompt neurological evaluation. 

Challenges with EEG in the ED

One of the primary challenges in the ED is the limited time available for comprehensive assessments. Research shows that this constraint can lead to missed opportunities for detecting critical neurological conditions, such as non-convulsive seizures or non-convulsive status epilepticus. Patients in the ED may not exhibit obvious seizure symptoms, even after injuries that would seem to typically present them, such as traumatic brain injury, making EEG monitoring even more essential for timely diagnosis.

Furthermore, EDs typically lack specialized neurology staff, and the complexity of traditional EEG equipment can hinder its utility in this fast-paced environment. The need for quick setup and interpretation is evident, given that delays in EEG access can impact patient outcomes. Numerous research findings emphasize the critical role of EEG monitoring in emergency department (ED) settings, highlighting the potential risks associated with overlooking neurological conditions.

Zeto’s Solution for the ED

Zeto’s EEG system is tailored to address the unique challenges of the ED. It offers a streamlined setup process that can be quickly implemented by ED staff, who may not have specialized neurology training. This ease of use is vital in an environment where every minute counts, and rapid response can be a matter of life and death.

The Zeto EEG system also features advanced seizure detection capabilities, aligning with the need for timely diagnosis in the ED. Seizures will be automatically detected and marked in the EEG for review. Near real-time detection notifies medical staff about patients with ongoing clinical seizures. This capability is particularly valuable in the ED, where rapid neurological assessments are essential.

Benefits and Features of Zeto in the ED

Zeto’s EEG system offers several key features that make it a valuable tool in the ED:

  • Quick Setup: In the high-pressure environment of the ED, simplicity is paramount. Zeto’s full-montage headset is designed for quick deployment without any preparation needed, enabling ED staff to initiate EEG monitoring rapidly (the average time is 5 minutes). 
  • Ease of Use: If EEG techs are not available, any ED nurse or medical assistant can be trained to do EEG with Zeto. Wireless and portable, Zeto headset enables straightforward setup at a patient’s bedside, facilitating immediate EEG monitoring using a laptop.
  • Video EEG via cloud: Zeto is compatible with any integrated or USB-enabled camera and the cloud’s live/remote capabilities allow for real-time observation of patients during suspected seizures.  
  • Single-use disposable electrodes: Zeto’s electrodes are dry and soft, and designed for convenience and patient comfort, requiring no paste, gel, or cleanup. 
  • Fast turnaround time: Zeto’s EEG system facilitates a swift turnaround time, allowing for instant EEG monitoring and rapid decision-making, essential for prompt diagnosis and treatment in emergency scenarios.
  • Remote EEG Reading: Zeto offers a Remote EEG Reading Service accessible through the Zeto Cloud Platform. A team of remote, certified, and specially trained adult and pediatric epileptologists provides real-time or retrospective EEG interpretation across all 50 states, the District of Columbia, and Puerto Rico.
  • Remote EEG monitoring: Zeto provides real-time remote video EEG monitoring by registered EEG technologists (R.EEG.T) when such personnel are unavailable on-site. This service is available in real time upon request with a 30-minute notice 24/7/365, at no extra charge during nights, weekends, or holidays.
  • These features collectively enhance the ED’s ability to provide comprehensive care, including neurological assessments, to patients who may present with complex medical conditions. The Zeto EEG system’s adaptability and efficiency align with the dynamic nature of the ED, where quick assessments and decision-making are critical.

Contact us to learn more and to schedule a demo or consultation. You’ll discover how our technology can advance your hospital’s neurodiagnostic capabilities. Join us in leading the change towards better, more efficient patient care.

Zeto Adds New Chief Financial Officer to Accelerate Growth

SANTA CLARA, Calif., March 6, 2024 (Newswire.com) – Zeto, Inc., a commercial-stage medical technology company transforming EEG brain monitoring for healthcare with its innovative EEG headset and advanced cloud platform, today announced the appointment of Neway Redia as its new Chief Financial Officer. With a career spanning over 20 years, including 16 years at Siemens across multiple divisions and various countries, and last 4 years in leadership positions at medical technology startups, namely, Zap Surgical and Promaxo, Neway brings a wealth of experience and skill to help co-lead Zeto to its next stage of growth.

Aswin Gunasekar, Founder and CEO of Zeto, expressed his enthusiasm saying, “We are excited to welcome Neway Redia as our Chief Financial Officer, especially during a period of fast growth for Zeto. His diverse background, expertise, and strategic leadership are what our company needs at this pivotal phase of our journey. Under Neway’s guidance, we look forward to scaling our operations rapidly and creating the foundation for Zeto to be able to lead the industry. We are optimistic about achieving rapid market penetration with our popular EEG platform.”

Zeto announced the appointment of Neway Redia as its new Chief Financial Officer. 

On joining Zeto, Neway shared, “I am super excited to join Zeto at such an important phase. The company’s market potential is huge, promising extensive opportunities for growth and innovation. As CFO, I aim to provide financial and strategic leadership to Zeto, as we transform EEG technology which is due for a change, and secure leadership position in the brain monitoring market.”

Neway will be based out of Zeto’s office in Santa Clara, working closely with the company’s management team and the board of directors. 

About Zeto, Inc.

Zeto, Inc. is an award-winning, privately held medical technology company located in Santa Clara, CA, that is focused on transforming the way electroencephalography (EEG) is performed at hospitals and clinics. Zeto’s revolutionary FDA-cleared EEG headset and cloud platform bring the traditional EEG procedure to the 21st century. The company plans to leverage its hardware and software technology to improve noninvasive monitoring of the brain’s electrical activity and achieve better outcomes for neurological conditions such as epilepsy, sleep disorders, autism, stroke, and concussion.

To learn more about Zeto’s products, please visit: https://zeto-inc.com or email us at info@zetoinc.com.

Source – Newswire 

Zeto Achieves HITRUST Risk-Based, 2-year Certification Demonstrating the Highest Level of Information Protection Assurance

HITRUST Risk-Based, 2-year (r2) Certification validates Zeto is committed to strong cybersecurity and protecting sensitive data.

SANTA CLARA, Calif., February 26, 2024 (Newswire.com) – Zeto, Inc., a commercial-stage medical technology company transforming EEG brain monitoring in healthcare with its innovative EEG headset and advanced cloud platform, today announced its ZCP (Zeto Cloud Platform) has earned certified status by HITRUST for information security.

HITRUST Risk-based, 2-year (r2) Certification demonstrates that the organization’s ZCP (Zeto Cloud Platform) has met demanding regulatory compliance and industry-defined requirements and is appropriately managing risk. This achievement places Zeto, Inc. in an elite group of organizations worldwide that have earned this certification. By including federal and state regulations, standards, and frameworks and incorporating a risk-based approach, the HITRUST Assurance Program helps organizations address security and data protection challenges through a comprehensive and flexible framework of prescriptive and scalable security controls.

Zeto Achieves HITRUST Risk-Based, 2-Year Certification Demonstrating the Highest Level of Information Protection Assurance

“We’re proud to affirm our commitment to exceptional data protection and information security standards by securing the distinguished HITRUST r2 Certification,” said Aswin Gunasekar, Founder and CEO at Zeto, Inc.

“HITRUST certification is globally recognized as validation that information security and privacy controls are effective and compliant with various regulations. HITRUST certification is considered the gold standard because of the comprehensiveness and applicability of the control requirements, depth of the assurance process, and level of oversight that ensures accuracy,” said Jeremy Huval, Chief Innovation Officer at HITRUST.

About Zeto, Inc.

Zeto, Inc. is an award-winning, privately held medical technology company located in Santa Clara, CA, that is focused on transforming the way electroencephalography (EEG) is performed at hospitals and clinics. Zeto’s revolutionary FDA-cleared EEG headset and cloud platform bring the traditional EEG procedure to the 21st century. The company plans to leverage its hardware and software technology to improve noninvasive monitoring of the brain’s electrical activity and achieve better outcomes for neurological conditions such as epilepsy, sleep disorders, autism, stroke, and concussion.

To learn more about Zeto’s products, please visit: https://zeto-inc.com or email us at info@zetoinc.com.

Source – Newswire 

How Digital EEG Filters Impact EEG Signal Morphology

Filters are commonly used during clinical assessment of EEG brainwaves. They are recommended in the ACNS guidelines¹ to reduce electrical noise and improve EEG data quality. The basics of filter theory are part of the training curriculum for physicians and EEG techs² alike, yet the impact of filters on interpreting data is not always apparent to everyone in the day to day clinical operations. This blog summarizes the issues, explains what filters exist, and what effects they can have on the morphology of the EEG waveforms. Selecting the right filter settings can help improve readability and reduce misinterpretations.

Why We Filter and Why It’s Appropriate

A considerable amount of raw data in EEGs are contaminated by noise and artifacts. This noise originates from various sources such as the environment, recording instruments, or from within the body that are not of interest to analyzing the EEG (i.e. “physiological noise”). The problem arises when these noise sources mask the target EEG signal or interfere with its assessment. Oftentimes, however, the artifact noise and target EEG signal occupy different spectral regions, and selectively filtering out specific frequencies may improve the overall signal-to-noise ratio (SNR).

For example, a direct current (DC) or baseline offset of the amplifier system or slow fluctuations induced by sweat artifacts may be removed with a high-pass filter. Electrical power line noise in the recording environment can be attenuated by using a notch filter at 50 or 60 Hz. And, unwanted high-frequency components from muscle artifacts can be removed by “smoothing” the data with a low-pass filter. The advantages of filters are that they can help increase the SNR of target signals especially in situations in which the target EEG signals are in a limited band.

Filters are applied selectively to exclude frequencies from further evaluation. Three main types of filters used to accomplish this for EEG are i) high-pass filters (also called low-cut-off filters), ii) low-pass filter (also called high-cut-off filters), or iii) band-reject filters (or also called notch filters) – See Figure 1. Most EEGs evaluated in clinical day to day operations have a combination of these filter types applied before a reviewer assess clinical characteristics for triaging or diagnosis.³

Figure 1: A Low pass filter is a filter that passes low frequency components and blocks high frequency signals. A High pass filter is a filter that passes high frequency signals and blocks low frequency signals. Bandpass filter is a filter that passes a certain range of frequencies and blocks both lower and higher regions. A Band Reject filter is a filter that passes most of the frequency except a very narrow range of the frequencies.³

Because of their useful properties, filters are found at all stages during the EEG recording and review process. EEG amplifiers often contain an analog low-pass filter ahead of the analog-to-digital (AD) converter to address aliasing artifacts that are otherwise introduced due to the discrete sampling rate. However, most filters in EEG processing are digital and take place after the AD conversion. That makes filters omnipresent when working with EEG data and their settings will affect the look and shape of the EEG tracings on a reader’s screen. More in-depth analysis of filter times and filter theory.⁴

Wanted and Unwanted Effects of Filters on EEG Morphology 

The way that many filters operate is to apply a weighted average of consecutive data points of the raw signal to obtain a smoothed, output (filtered) waveform. Depending on the type and width of this averaging window, specific frequency components disappear from the output waveform. The filtered signal may not show excluded frequencies anymore, but this was made possible after having created a causal relationship with the surrounding data segments. Figure 2 illustrates this principle.

Every sample of the output depends on multiple samples of the input, as illustrated.

Figure 2. Every sample of the output depends on multiple samples of the input, as illustrated in Figure 2 (top).  Conversely, each sample of the input impacts several samples of the output (Figure 2, bottom). As a result, the signal that is being filtered is smeared along the temporal axis, and temporal relations between filtered and original waveforms are blurred.

Top: each sample of the output y is the sum of samples of the input x weighted by the impulse response h. For a causal filter, only past or present samples of the input make a contribution (black). For an acausal filter, future samples too can contribute (gray). Bottom: another way of describing this process is that each sample of the input x affects multiple samples of the output y, with a weight determined by the impulse response h.⁴

Filters that lead to this kind of temporal smearing are called causal filters and are frequently used in EEG assessments. However, causal filters are known to create ripples in the EEG data that will show up as slow waves in the EEG data. These causal filters create a phase shift but have the advantage that they can be applied in real-time to ongoing EEG data streams.

To avoid phase shifts and to get outputs much closer to the true biological signal, so-called forward/backward filters (or zero phase) filters are another option. Zero phase shift filters first run the filter in one direction and again in the other direction. As a result, any phase shift is mitigated and no temporal smearing occurs. However, the disadvantage of these zero-phase filters is that they can only be applied in real-time recordings with a significant delay because they have to wait for data to be recorded before they can run backwards.

Figure 3 illustrates the output of a causal (blue) or zero phase filter (green) when applied to a test signal (black). The output of the causal filter (blue) creates a well visible phase shift and relevant filter ripple along with a long overshoot. In contrast, the zero phase shift filter keeps the integrity of the main signal peak intact and only creates minor symmetrical ripples around the peak.

Temporal Response Function Estimated from Simulated Stimulus-Response Data

Figure 3. Temporal Response Function Estimated from Simulated Stimulus-Response Data. Black: “true” TRF. Thick blue: TRF estimated using response data that has been filtered by a causal filter (Butterworth band pass 1–10 Hz, order 4+4). Green: same with acausal filter (MATLAB’s filtfilt).⁴

Examples of Causal and Zero Phase Filters in EEG 

The most noticeable difference between causal and zero phase shift filters on actual EEG data occurs for high pass filters in the delta range (<1.5Hz) because they can visibly alter the appearance of commonly occurring biological signal components of the EEG such as vertical or horizontal eye movements (i.e., blinks and saccades), sweat artifacts, and even specific epileptiform discharges (e.g. absence seizures). For an overview, see Figure 4.

Effects of causal filters in higher frequencies (>50Hz) certainly exist as well but these are much less noticeable due to much faster oscillations that have smaller amplitude and are harder to pick out visually.

Effects of causal filters in higher frequencies (>50Hz) certainly exist.

Figure 4 – Here an example of two channels (FP1, FP2) filtered with a 1Hz causal filter (black tracings) or zero-phase filter (gray tracings) – causal filters introduce relevant slow wave filter ripples.

Implementation of Causal and Zero Phase Filters on the Zeto Cloud Platform

Most clinical EEG hardware or software manufacturers have filter master-settings that pre-determine the exact type and properties of the filters available in their products. That can result in situations in which the same biological signal may appear slightly differently depending on the manufacturer’s default digital filter settings. Zeto is improving the tradition by introducing features that enable users to easily switch between different filter types and settings to optimally control the use of filters while reviewing EEG data.

As a result, users can configure their filter preferences to match their individual viewing and training history, resulting in filter outputs that match their expectations. Instead of retraining themselves on a new system’s filter settings, they can now adjust filter attributes and reduce the time to a confident read significantly.

With Zeto, EEG data is saved in raw unfiltered (DC) formats that do not distort the original signal attributes. Subsequent digital filtering can then be used to match desired filter attributes. For example, Zeto can display data after running causal or zero phase shift filters and switch between these filter settings more easily, making it possible to compare which setting is preferred on the spot.

Figure 5 illustrates this filter switch approach on different data samples. The tiles on the left are filtered using zero phase filters and tiles on the right show the same data using causal filters of the same cut-off frequency. Switching between these filters reveals signal ripples, most noticeable for the blinks but also in other signal components.

1Hz Filter – left: zero phase; right: causal filters.

With Zeto, EEG data is saved in raw unfiltered (DC) formats that do not distort the original signal attributes. Subsequent digital filtering can then be used to match desired filter attributes.
With Zeto, EEG data is saved in raw unfiltered (DC) formats that do not distort the original signal attributes. Subsequent digital filtering can then be used to match desired filter attributes.
With Zeto, EEG data is saved in raw unfiltered (DC) formats that do not distort the original signal attributes. Subsequent digital filtering can then be used to match desired filter attributes

The benefits that filters provide are crucial to enable a confident clinical read that is not skewed by unwanted signals. However, filters can introduce artifacts on their own. The well trained EEG reader will need to be vigilant about possible filter artifacts in EEG signals and how these may affect the clinical assessment of the patient’s brain states. As Zeto, we encourage our users to match the available filter settings to their preferences to ensure a fast and efficient diagnostic process. For questions about how to best match your Zeto filter settings and establish adequate default settings, please contact our customer success team at support@zetoinc.com.

References:

  1. Sinha, S. R., Sullivan, L., Sabau, D., et al. (2016). American Clinical Neurophysiology Society Guideline 1: Minimum Technical Requirements for Performing Clinical Electroencephalography. Journal of Clinical Neurophysiology, 33(4), 303-307. DOI: 10.1097/WNP.0000000000000308
  1. ASET Board of Trustees. (2021, March 20). National competency skill standards for performing electroencephalography (EEG). ASET Website. Retrieved from https://www.aset.org/wp-content/uploads/2022/11/EEG_Competencies_FINAL.pdf (Page 4, Section 2.3)
  1. ShareTechnote. (n.d.). RF – Filter. Retrieved from https://sharetechnote.com/html/RF_Filter.bak
  1. De Cheveigné, A., Nelken, I. (2019). Filters: When, Why, and How (Not) to Use Them. Neuron. DOI: 10.1016/j.neuron.2019.02.039

EEG Techs Face Challenges: Portable EEG Creates Solutions

EEG Techs continue to be the gold standard for EEG administration, their training and expertise is crucial for meeting the neurodiagnostic needs of hospitals. Unfortunately, there is a massive nationwide shortage of EEG techs in the United States, and this significantly impacts the delivery of essential neurodiagnostic services throughout the country. This shortage not only strains healthcare systems, and causes delays in diagnosis and treatment, but also places an immense burden on EEG techs.


Zeto’s portable full-montage EEG headset offers a solution to this crisis. By simplifying and streamlining the EEG process, Zeto helps hospitals and medical centers to deftly navigate staffing shortages or a lack of availability of EEG techs on nights and weekends.


Zeto offers an EEG solution with seizure detection, video, and remote monitoring services, enabling hospitals and outpatient settings alike to maintain high-quality neurodiagnostic services even in the face of such staffing constraints.

Enhancing Productivity and Hospital Service Capabilities for EEG Techs

There is a massive nationwide shortage of EEG techs in the United States

In hospital settings, where the demand for EEG services is often high and continuous, the presence of a skilled EEG tech is invaluable. However, the current shortage of these professionals creates significant challenges. Zeto’s portable EEG headset is designed to address this gap, providing solutions that significantly enhance the efficiency and effectiveness of EEG services in hospitals.

Efficiency Improvements for EEG Techs:

Zeto’s headset simplifies the EEG setup and operation process. By reducing the time and effort required for placing electrodes and setting up, Zeto enables EEG techs to manage their workload with more ease.

EEG Techs can Delegate:

One of the key advantages of Zeto’s system is its ease of use, allowing EEG techs to quickly train other healthcare staff, such as nurses or other types of techs, such as respiratory therapists. If EEG tech is not available, support staff can step in. This capability is crucial for providing EEG services, especially during off-hours such as nights and weekends, or in the critical care and emergency departments.

Techs can Focus on Higher Level Duties:

With Zeto’s user-friendly system, EEG techs can dedicate more time to monitoring and annotating EEG readings, which are vital for accurate diagnoses. This shift in focus from setup to analysis enables EEG techs to apply their expertise where it matters most.

Upskilling for the Future:

As the healthcare industry evolves, there is a growing need for EEG techs to adapt and upskill. Technologies like Zeto not only provide immediate solutions to current challenges but also pave the way for techs to enhance their skills in areas like data analysis, remote monitoring, and advanced neurodiagnostic techniques.

Remote Validation of EEG Studies with Zeto’s Cloud Platform:

Zeto’s cloud platform enables EEG techs to remotely monitor EEG studies when the setup is performed by non-technical personnel. Utilizing live video, EEG techs can oversee EEGs in real-time from anywhere, ensuring the quality of each study. This remote capability is essential for maintaining high standards in EEGs, regardless of who performs the initial setup.

Use of Zeto’s portable EEG headset for hospitals is a significant step forward in managing the current EEG tech shortage. By enhancing efficiency, facilitating skill development, and ensuring continuous high-quality EEG services, Zeto helps hospitals to better manage their challenges, and to deliver excellent healthcare.

Improve Outpatient EEG Services Using Portable EEG 

In outpatient settings, the EEG tech shortage presents unique challenges, particularly in terms of efficiency and patient throughput. Zeto’s wireless EEG headset addresses these challenges head-on, contributing to improvements in how EEG services are delivered in outpatient clinics.

Reduction in Setup and Cleanup Time:

Traditionally, EEG setup and cleanup can take up to an hour, burdening both the EEG tech and the patient. Zeto’s portable EEG system reduces this to just a few minutes.

Minimal Space Requirements and Increased Flexibility:

The need for a sink and extensive setup space, as required for conventional EEG, is eliminated with Zeto’s portable EEG headset. Clinics can conduct EEG tests with just a bed or chair, making better use of available space. This compact setup allows a single tech to manage multiple EEG sessions simultaneously, with EEG data accessible via the cloud.

Enhanced Patient Throughput:

With Zeto, the primary limit to conducting EEGs is the number of headsets available. This capability to run multiple sessions concurrently significantly increases patient throughput, a vital factor in busy outpatient settings.

Streamlined Data Management:

Zeto’s cloud-based system means that data transfer concerns are a thing of the past. EEG techs no longer need to spend time ensuring data is properly transferred and stored, as it’s automatically synced to the cloud and accessible for whomever needs it, instantaneously.

Focus on Value-Added Patient Care:

Freed from time-consuming setup and data management tasks, techs can focus more on direct patient care, education, and comfort. This shift not only enhances the patient experience but also provides more job satisfaction for techs.

Patient Satisfaction and Comfort:

Zeto offers a more comfortable, shorter, and cleaner experience for patients. The use of no-residue electrodes that do not use gels or pastes, means there’s no need for a patient to wash their hair afterwards. It works perfectly with different hair types, including kinky, coil, and braided hair.

Expanding EEG Setup Skills Across Your Team with Zeto:

In outpatient settings where EEG techs might not always be available, Zeto’s system offers a practical solution. Any staff member, such as a medical assistant, can be trained to do the EEG setup. This flexibility allows clinics to utilize their resources more efficiently, ensuring that EEG services are readily available when needed. With Zeto, clinics can schedule patients for EEGs swiftly, enhancing patient care and operational efficiency even with limited staffing.

Zeto’s portable EEG headset addresses the critical challenges posed by the EEG tech shortage. By enabling more efficient use of time and resources, reducing the need for extensive physical infrastructure, and enhancing the quality of patient care, Zeto is setting a new standard in outpatient neurodiagnostic services.

To learn more about Zeto’s wireless, dry-electrode, full-montage EEG headset with real-time remote monitoring and near real-time seizure detection, please contact us to schedule a chat and a demo.