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Electrical Impedance Tomography of Epilepsy
Sponsor: University College, London
Summary
The purpose of this study is to determine if Electrical Impedance Tomography (EIT) can produce reproducible and accurate images in people with epilepsy compared to existing standards such as MRI, CT or EEG. Electrical Impedance Tomography is a relatively new medical imaging method, which has the potential to provide novel images of brain function. It is fast, portable, safe and inexpensive, but currently has a relatively poor spatial resolution. It produces images of the internal electrical impedance of a subject with epilepsy using rings of ECG like electrodes on the skin, intracranial electrode mats or deep electrodes implemented surgically as part of clinical assessment. EIT recording will take place in parallel with the routine recording on the ward. Following completion of the recording, the EIT images will subsequently be analysed and compared to other imaging data for accuracy.
Official title: Imaging Stroke, Epilepsy and Evoked Potentials in the Brain Using Electrical Impedance Tomography
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
OBSERVATIONAL
Enrollment
42
Start Date
2017-05-30
Completion Date
2027-12
Last Updated
2024-12-06
Healthy Volunteers
No
Conditions
Interventions
Electrical Impedance Tomography
EIT comprises of a box of electronics similar in size to a video recorder, laptop computer and leads which link typically to 16 or 32 external ECG-like electrodes placed around the subject. Images are generated by applying tiny electrical signals through some electrodes and recording the resulting signals at others. The signals applied are completely safe, within established British and EU safety limits and cannot be felt. For intracranial electrode studies, the EIT systems will be linked to the existing EEG video recording systems and EIT will be recorded at the same time using some or all of the available intracranial electrodes.
Locations (1)
EEG telemetry unit Neurophysiology National Hospital for Neurology and Neurosurgery
London, United Kingdom