Detection of Epileptic Seizure Using Wireless Sensor Networks

The monitoring of epileptic seizures is mainly done by means of electroencephalogram (eeg) monitoring. although this method isaccurate, it is not comfortable for the patient as the eeg-electrodes have to be attached to the scalp which hampers the patient’smovement. this makes long-term home monitoring not feasible. in this paper, the aim is to propose a seizure detection system basedon accelerometry for the detection of epileptic seizure. the used sensors are wireless, which can improve quality of life for the patients.in this system, three 2d accelerometer sensors are positioned on the right arm, left arm, and left thigh of an epileptic patient. datasetsfrom three patients suffering from severe epilepsy are used in this paper for the development of an automatic detection algorithm. thismonitoring system is based on wireless sensor networks and can determine the location of the patient when a seizure is detected andthen send an alarm to hospital staff or the patient’s relatives. our wireless sensor nodes are micaz motes developed by crossbowtechnology. the proposed system can be used for patients living in a clinical environment or at their home, where they do only theirdaily routines. the analysis of the recorded data is done by an artificial neural network and k nearest?neighbor to recognize seizuremovements from normal movements. the results show that k nearest neighbor performs better than artificial neural network fordetecting these seizures. the results also show that if at least 50% of the signal consists of seizure samples, we can detect the seizureaccurately. in addition, there is no need for training the algorithm for each new patient.