Smallwood R H, Mangnall Y F, Leathard A D
Department of Medical Physics and Clinical Engineering University of Sheffield, Royal Hallamshire Hospital, UK.
Physiol Meas. 1994 May;15 Suppl 2a:A175-88. doi: 10.1088/0967-3334/15/2a/023.
A planar array of electrodes has been used to provide a longitudinal section of the stomach. Impedance changes at the gastric frequency of 0.05 Hz can be detected. The changes are mainly located around the periphery of the stomach image, suggesting that they are the result of movement of the stomach wall. The generation of a vector histogram of wall movement gives a non-invasive method which appears to quantify the peristaltic waves which produce transport in the stomach.
已使用平面电极阵列来获取胃的纵向截面。可以检测到0.05Hz胃频率下的阻抗变化。这些变化主要位于胃图像的周边，表明它们是胃壁运动的结果。壁运动矢量直方图的生成提供了一种非侵入性方法，似乎可以量化在胃中产生运输的蠕动波。
