A NEW APPROACH TO THE AUTOMATED DETECTION OF DIAGNOSTIC INDICATORS OF DELAYED CEREBRAL ISCHEMIA AFTER SUBARACHNOID HEMORRHAGE IN LONG-TERM EEG MONITORING DATA

Based on the analysis delayed ischemia after subarachnoid hemorrhage indicators, a new approach to of data from long-term electroencephalographic patients monitoring is proposed and described. It based wavelet transforms ridges, in which power spectrum density, frequency phase, are equal square amplitude, phase signal respectively. The main formulas justifying this given. Illustrations use Morlet spectrograms electroencephalogram’s patient prefrontal leads presented first day before development cerebral seventh day, when had an acute period ischemia. One indicators ischemia, has prognostic value its development, number events epileptiform activity per unit time (usually hour). A method for detecting detection interchannel synchronization spectrogram ridges been