Multi-modal Intelligent Seizure Acquisition (MISA) system - A new approach towards seizure detection based on full body motion measures

Isa Conradsen, Sándor Beniczky, Peter Wolf, Daniella Terney, Thomas Sams, Helge Bjarup Dissing Sørensen

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Abstract

Many epilepsy patients cannot call for help during a seizure, because they are unconscious or because of the affection of their motor system or speech function. This can lead to injuries, medical complications and at worst death. An alarm system setting off at seizure onset could help to avoid hazards. Today no reliable alarm systems are available. A Multi-modal Intelligent Seizure Acquisition (MISA) system based on full body motion data seems as a good approach towards detection of epileptic seizures. The system is the first to provide a full body description for epilepsy applications. Three test subjects were used for this pilot project. Each subject simulated 15 seizures and in addition performed some predefined normal activities, during a 4-hour monitoring with electromyography (EMG), accelerometer, magnetometer and gyroscope (AMG), electrocardiography (ECG), electroencephalography (EEG) and audio and video recording. The results showed that a non-subject specific MISA system developed on data from the modalities: accelerometer (ACM), gyroscope and EMG is able to detect 98% of the simulated seizures and at the same time mistakes only 4 of the normal movements for seizures. If the system is individualized (subject specific) it is able to detect all simulated seizures with a maximum of 1 false positive. Based on the results from the simulated seizures and normal movements the MISA system seems to be a promising approach to seizure detection.
Original languageEnglish
Title of host publicationConference proceedings : 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
Volume1
PublisherIEEE
Publication date2009
Pages2591-2595
DOIs
Publication statusPublished - 2009
Event31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Minneapolis, MN, United States
Duration: 2 Sep 20096 Sep 2009
Conference number: 31
http://www.embc09.org/

Conference

Conference31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Number31
CountryUnited States
CityMinneapolis, MN
Period02/09/200906/09/2009
Internet address

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