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二、核素排空运动试验这是近年来检查消化道运动功能的一种新技术,利用闪烁仪或γ照相,检测标记有核素的食糜或液体在胃肠道的通过时间,一般应用~(99m)锝(~(99m)TC)用于标记固体食物,~(111)铟(~(111)IND-PTA)标记液体食物,两者半衰期均为6小时左右。在食管部分检查中,可将食管分为三个节段,这在贲门失弛缓症,弥漫性食管痊挛和硬皮病中均有特征性表现,有很大的诊断意义。在胃的检查中,胃的排空参数有多种方法表示,比较常用的有胃排空一半所
Second, the radionuclide exercise test This is a check in recent years, digestive tract function of a new technology, the use of scintigraphy or gamma camera to detect the presence of radionuclide chyme or liquid in the gastrointestinal transit time, the general application ~ (99m) technetium (~ (99m) TC) was used to label solid food and ~ (111) indium (~ (111) IND-PTA) labeled liquid food, both of which had a half-life of about 6 hours. In the esophageal part of the examination, the esophagus can be divided into three segments, which achalasia in the cardia, diffuse esophageal cirrhosis and scleroderma have characteristic performance, has great diagnostic significance. In the examination of the stomach, the gastric emptying parameters have a variety of methods, said the more commonly used gastric emptying half