近十余年

随着电子技术与计算机科学的进步和胃肠道平滑肌电生理研究的不断深入

推动了胃电深入研究和广泛应用

国内学者将中医、针灸与胃电结合研究

取得一些可喜的苗头。胃电将有可能成为具有一定价值的客观检测指标。胃电研究与应用进展自1922年

ALvarez等人首次从人体记录到胃的电活动以来

人们从不同的There has been big development in electrogastroenterography for recent tenyears. This article will underscore the following points: 1. On study of accupuncture

it appears that there is a doudtly modula-tion action induced by needling some points and a relative specificity in the action of the points on gastric and intestinal electrical activity. 2. Some people observed the relatian of TCM differentiation of syndromeswith EGG and found that the amplitude of EGG with cases of Xu type aswell cold type was lower than that of the normal subjects

but with hoat typethe mean amplitude was highur than that of the normal subjects. 3. For instruments detecting gastric and intestinal electrical activity

thefilter is very important. To meet practical requirements

we apply low-passfilter with source

digital filter of FIR and adaptive filter to the extractionof electrogashrographic signals. 4. Signal analysis consists of time domain analysis and frequency domainanalysis. EGG features are extracted and detected by correlation function andcoherent averaging technique. For obtaining spectrum of EGG

computer spectrumanalysis using Fast Fourer Transform (FFT) and the autoregressive (AR)spectral estimation technique are presented.