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.

• 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。