TITLE:
Calculation of compact amplitude-integrated EEG tracing and upper and lower margins using raw EEG data
AUTHORS:
Dandan Zhang, Haiyan Ding
KEYWORDS:
Amplitude-Integrated EEG; Digital Algorithm; Upper Margin; Lower Margin; Compact Tracing
JOURNAL NAME:
Health,
Vol.5 No.5,
May
27,
2013
ABSTRACT: Amplitude-integrated EEG (aEEG) is a
popular method for monitoring cerebral function. Although various commercial
aEEG recorders have been produced, a detailed aEEG algorithm currently is not
available. The upper and lower margins in the aEEG tracing are the discriminating
features for data inspection and tracing classification. However, most aEEG
devices require that these margins be measured semi-subjectively. This paper
proposes a step-by-step signal-processing method to calculate a compact aEEG
tracing and the upper/lower margin using raw EEG data. The high accuracy of
the algorithm was verified by comparison with a recognized commercial aEEG
device based on a representative testing dataset composed of 72 aEEG data. The
introduced digital algorithm achieved compact aEEG tracing
with a small data size. Moreover, the algorithm precisely represented the
upper and lower margins in the tracing for objective data interpretation. The described method should facilitate aEEG signal processing
and further establish the clinical and experimental application of aEEG
methods.