Practical issues in bispectral analysis of electroencephalographic signals.
The aim of this report was to confirm the methodology of bispectral analysis of electroencephalogram. In developing a software for real-time bispectral analysis, we encountered several practical problems in bispectrum calculation. We settled those and concluded that 3 min of monitoring are required to obtain reliable and reproducible bicoherence values.
Hagihira
S
S
Surgical Center, Osaka Prefectural Habikino Hospital, Japan. hagihira@masui.med.oaska-u.ac.jp
Takashina
M
M
Mori
T
T
Mashimo
T
T
Yoshiya
I
I
D000465:Algorithms; D000769:Anesthesia, Inhalation; D003936:Diagnosis, Computer-Assisted; D004569:Electroencephalography / Q000379:methods*; D005260:Female; D005743:Gastrectomy; D006801:Humans; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000379:methods*; D012984:Software