New certification for EGI products in Colombia
EGI is pleased to announce that the GES 300 has received approval as a medical device in Colombia. View this and other product certifications on our Certifications page. |
Dense array EEG shows promise for bedside test of awareness
What is the nature of consciousness when a person is in a vegetative state? How much can they hear and understand? Are they aware of their surroundings? A recently published study in "The Lancet" used dense array EEG from EGI to demonstrate that some patients, diagnosed as being in a vegetative state, understand what they hear and can follow instructions. Because EEG is portable and relatively inexpensive, this work shows promise that EEG could be used for bedside assessment of patients in a vegetative state, making it easier to make a reliable diagnosis and to potentially be able to communicate with them.
Nature.com also reports.
Read the article in "The Lancet".
Find out more.
See the report from the University of Western Ontario. |
EGI Customer Publications Updated Through Fall 2011
The recently updated EGI customer publications list includes over 880 peer reviewed journal articles.
In the third quarter of 2011 alone, over 70 different papers were published using EGI's Geodesic EEG System for research.
Download the full publication list or go to our Research Publications page to view the 2011 citations.
We try hard to capture all of our customers' work but if you have an article that is not listed, please send your APA-style citation to
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
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Dr. Göran Lantz to speak at Epilepsy Conference in Austria
 Noted epilepsy expert Dr. Göran Lantz will present a talk entitled "High density EEG - basics, principals and clinical applications" at the annual meeting of the Austrian Society of Clinical Neurophysiology in Salzburg, Austria on 11 November, 2011. Dr. Lantz holds a position as a scientist and clinical educator at EGI. His work focuses on developing advanced source analysis methods for spike and seizure localization and generating physician review protocols.
Dr. Lantz is the author of more than two dozen peer-reviewed publications, including several seminal papers on dense array EEG and electrical source analysis applied to the localization of epileptogenic foci. Read his recent review of electrical source imaging. |
EGI Customers in the News
 The July 11, 2011 issue of "People" magazine has an article on autism that mentions researchers and physicians using EGI products in their work. Featured in the story is the ongoing work at Children's Hospital in Boston and UCLA using EGI's dense array EEG to identify markers for children at risk for autism. Geraldine Dawson, CSO for Autism Speaks and a longtime customer of EGI, is also cited. Referring to The Early Social Intervention Project, she states "if we start intervention when symptoms begin, we can perhaps alter the course of development and, in some cases, prevent the full ASD syndrome."
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Dense array EEG outperforms other typically available noninvasive modalities in predicting positive surgical outcomes for patients with drug-resistant epilepsy.
October’s issue of Brain contains the first large-scale study of the relative contribution of 128- and 256-channel dense array EEG (dEEG) to the presurgical planning process. Drawing on their decade of experience with dEEG, the groups lead by Dr. Seeck and Dr. Michel reported that their electrical source imaging (ESI) technique outperformed the noninvasive standard of care methods (conventional EEG, PET, ictal SPECT and MR) in identifying the epileptic region.
The study included 152 patients who underwent surgery to relieve their epileptic seizures. Prior to surgery, patients had several tests to identify the source of seizure activity in their brains. Tests included electrical source imaging with either conventional EEG (19-29 electrodes) or dEEG (EGI’s 128-or 256-electrode Geodesic EEG System), MRI, PET and SPECT. Electrical source imaging using dEEG combined with individual MRI head models proved to be the most accurate at pinpointing the correct part of the brain to remove during surgery. In all, 133 out of 152 patients were either seizure-free or had only rare seizures more than a year after surgery. ESI was superior both in terms of sensitivity and specificity to the other measures included in the study (MEG results were not available for the patients reported in this study).
These results were particularly interesting since the ESI technique is based on localization of averaged spikes recorded during a high channel count but relatively short recording (2-3 hours).
The authors noted that not only is ESI with dEEG highly accurate, but it is also more cost effective and can be used with more types of patients, compared to other methods used in the study.
Brodbeck, Spinelli et al, 2011. Electroencephalographic source imaging: a prospective study of 152 operated epileptic patients. Brain 134 (10), 2887-2897. doi:10.1093/brain/awr243.
Full text available. |
EGI Products used in Mission to "Mars”
Imagine taking a trip to Mars and back with five of your colleagues, confined to a spaceship together for months at a time. The Mars500 project did more than imagine it, they performed an experiment to see if it was possible. For 18 months, an international team of six “astronauts” confined themselves to a “spaceship” in a Russian suburb. During this time, they performed experiments, including EEG experiments with the EGI GES 300, to assess the psychological and physical effects of an extended mission. On November 4, 2011, the astronauts emerged from their space ship in good health, in the longest space voyage simulated to date. The experiment demonstrated that humans can in fact endure long periods of isolation in a confined space, bringing the idea of a successful trip to Mars closer to reality.
Watch the BBC video to see EGI's 32-channel HCGSN at the 22 second mark.
Read the BBC report to learn more about the mission. |
New Research Newsletter
Read EGI's October 2011 Research Newsletter. Topics include:
- New HCGSN 130
- New Research Presented at OHBM
- EEG Research in China
- GeoSource 2.0 Now for Clinical Use
- New APIs for Developers
- Customer Success with GES
- Advanced Sleep Research
- EGI International Schools
- EGI Sponsors BESA Workshop
- New Hires at EGI
- Customer Publications
- Conferences
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New Certifications for EGI products
EGI has received the following new certifications:
- Taiwan medical device certification for GES 300
- South Korea medical device certification for GES 300
- Health Canada medical device license for GeoSource 2.0 source estimation software
- Registration Certificate from the Russian Federal Service of Health Care and Social Developmental Control
View these and other certificates. |
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