大脳皮質局所冷却装置用てんかん発作検知手法(機械力学,計測,自動制御)

概要

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We propose that the method to detect epileptic seizure for the focal cooling devices based on frequency characteristics about the Electrocorticogram (EcoG) of epilepsy patients. The frequency analysis shows that the power corresponding to high frequency's band becomes greater than that to the low frequencies whenever epilepsy seizure may occur. To make this characteristic more conspicuous, we calculated the ratio of both to use the detection index. Applying this method to six patients, we examined the threshold, the detection ratio and the time. As the threshold depends on each patient, we must set an appropriate value. However, setting a proper, we detected every epileptic dischange for each patient. This method enables to detect seizure before 7.87±5.98 (mean±standard deviation) seconds so that we can realize a real time system.
社団法人日本機械学会の論文
2006-06-25