抄録
Simultaneously, we measured dynamic movements of a stomach by ultrasonography (ECHO) and electrical signals by electrogastrography (EGG). A man (29 aged) was participated in this study for the purpose of studying the relations between dynamic movements and electrical phenomena of the stomach. He was measured before breakfast in the morning during 10 minutes at rest, and 5 minutes in drinking and eating and 10 minutes at rest in supine position. Nine electrodes were attached to the abdomen and electrical signals were recorded (BIOTOP-6R12, NEC san-ei Ins., Japan, band pass filter from 0.016 to 30Hz, sampling clock: 250Hz, reference electrode: right leg). And, a probe of ECHO (TOSHIBA Co., Aplio, Japan, TOSHIBA PVM-375AT probe) was put on the upper right abdomen between the electrodes. Movements of the stomach for ECHO were obtained measuring the pylorus diameter for every one second by observation. Results of the fast Fourier transform (FFT) showed a peak about 3 cycles per one minute for both ECHO and EGG. We think that dynamic movements and electric signals were correlated, so only EGG measures the stomach movement. In the future, we clarify the relation to the movement of the stomach by only EGG to various tasks as evaluation index. [J Physiol Sci. 2008;58 Suppl:S155]
