[ln search of the sharp wave of epileptic nature].
Aleksander Sobieszek · PubMed · 2015
INTRODUCTION: Proper identification of the EEG patterns is the basic stage of objective evaluation of EEG records. AIM: This paper is concentrated on the usefulness of contemporary analytical methods in rational evaluation of the distribution of brain electrical potentials recorded in routine, 10-20 system of electrode placement. MATERIAL AND METHODS: The paper illustrates results of analysis of the EEG records in a person with suspicion of existence of the state of nonconvulsive status epilepticus. The EEG was recorded using sampling frequency 250 Hz, with time constant 0.3 s, low pass filter 70 Hz and notch filter on. RESULTS AND CONCLUSIONS: The results illustrate advantages of the methods of imaging distribution of the brain electrical potentials during evaluation of EEG records as well as possible limitations resulting from the difficulties in obtaining reasonable basic set of data representing true spatial distribution of EEG patterns in basic montage.