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交流电的阻抗相当于直流电电阻.阻抗可在呼吸描记法中用以监护气容量,也是测定血容量的敏感而又精确的方法.阻抗也用于测定胃容量;低电导的液体进入胃时,上腹部的阻抗增加,随后下降,这种下降逻辑上代表了胃的排空.闪烁图是测定胃排空的一个准确方法.本研究对阻抗法与闪烁图在监护液餐胃排空中的应用作了比较.
The impedance of an alternating current is equivalent to the resistance of a direct current, and the impedance can be used to monitor the volume of gas in a plethysmographic method, which is also a sensitive and accurate measure of blood volume. The impedance is also used to measure the volume of the stomach; when the low conductivity liquid enters the stomach, The impedance of the abdomen increases and then decreases, and this decline logically represents the emptying of the stomach .Glossogram is an accurate method of determining gastric emptying .In this study, the impedance method and scintigraphy in the monitoring of gastric meal emptying application A