【摘要】 在胃排空、胃收缩或胃蠕动时,由于胃的形态、容积及其内容物组成情况的改变较大,电特性变化非常明显,变化规律与胃动力学状况相对应,相关性强。采用生物阻抗方法可以实现无创、高灵敏、准确地提取与胃动力学状况相对应的电特性及其变化信息。在介绍了胃动力功能及其检测方法的基础上,着重阐述了检测胃动力的电阻抗方法的发展动态、关键技术及其存在的问题。更多还原

【Abstract】 During the digest course the electrical property of the stomach alters obviously due to the change in shape, dimension, volume of gastric and the composition of stomach. The regulation of the impedance change is corresponding to the gastric motility and the correlation between them is evident. The impedance technique can be used to monitor gastric motility function no-invasively with high sensitivity and accuracy. Based on introduction of the gastric motility function and its measurement method, the development, key technique and existing problem of the gastric motility measurement using the electrical bio-impedance method are reviewed in this paper.更多还原