摘要
以“微电脑胃肠电检测分析系统”观测63名健康成年人胃窦部体表胃电。378序列频谱分析显示:①空腹时87.3％胃电序列属非活跃状态,其余13.7％序列处于活跃状态;②体表胃电重要频率成分在2.72±0.34～4.03±1.03周/分钟范围;约半数人仅有一个重要频率成分;另外半数人的体表胃电频率随时间变动,其餐后频谱峰数(3.4±1.1个)较空腹时(2.8±0.9个)增多;③空腹胃电优势频率2.90±0.38周/分钟,餐后增快至3.28±0.42～3.78±0.55周/分钟。87.3％受试者餐后30分钟内优势频率加快;④餐后胃电活动量Sum均值669±552～980±772μV较空腹非活跃状态343±208μV明显增高,84.1％受试者餐后20分钟内Sum迅速达到最大值,另有11.1％受试者餐后30～40分钟时Sum再次升高。
The Microcomputer Detect-analysing System for Electric Activities of Gastroenteric Tract was applied to examine 63 healthy adults. 378 series of electrogastrogram (EGG) spectrum indicated that: 1) in fasting condition 87.3％ EGG series were inactive and the other 13.7％ active; 2) important EGG frequency elements were in the range of 2.72±0.34～4.03±1.03 cycles per minute(cpm); 3) dominant frequency of fasting EGG were 2.90+0.38 cpm and increased to 3.23±0.42～3.78±0.55 cpm after test meal; 4) action index of postprandial EGG were 669±552～930±772 units aud significantly higher than in inactive condition of fasting EGG, which was 343±208 units.
