彩色多普勒超声对胃溃疡患者的十二指肠胃反流和胃动力的定量分析

Quantitive Analyses of Duodenogastric Reflux and Antral Motility by Color Doppler Ultrasonography

用一种简便、无创伤技术——彩色多普勒和二维超声检测十二指肠胃反流（ｄｕｏｄｅｎｏｇａｓ－ｔｒｉｃｒｅｆｌｕｘ，ＤＧＲ）和胃动力。２７例胃溃疡患者和３２例无症状健康者饮５００ｍｌ清炖肉汤后用彩色多普勒和二维超声观察胃窦收缩频率和胃窦最大截面积减小值以及ＤＧＲ频率和自幽门口起红色反流信号的间距，计算出反流指数、动力指数和胃排空率。与健康者相比，胃溃疡患者的胃动力指数下降，胃排空迟缓，ＤＧＲ增加。彩色多普勒超声是一种生理状态下无创伤和辐射、操作简便、能较准确评价ＤＧＲ程度的有价值的方法。

To devolop a simple, noninvasive method for evaluating duodenogastric reflux (DGR) and antral motility by color Doppler and 2 dimensions (2D) ultrasonography. The frequency and amplitude of antral contractions, the frequency of DGR and the distance of the red color signal from the pylorus were measured in 27 patients with gastric ulcer and 32 asymptomatic healthy volunteers by color Doppler and 2D ultrasonography after ingestion of 500 ml of consommé. Reflux and motility indexes and gastric emptying were calculated. DGR was significantly increased and gastric emptying and the motility index of antral contractions were significautly decreased in patients with gastric ulcer as compared with asymptomatic healthy volunteers. Ultrasonography with color Doppler is a simple, noninvasive and nonradioactive technique which evaluates the degrees of DGR exactly. It may promote a better understanding of the pathophysiology of gastric diseases.