实时超声检测液相胃排空

Measurement of Gastric Emptying Time by Real-Time Ultrasonography

本文比较了33例健康志愿者(男性16例,女性17例)在空腹状态下分别饮500ml的温开水、5％葡萄糖生理盐水及含1.8％脂肪的牛奶后,每隔一定时间(开水、糖盐水为10min,牛奶为15min)用实时超声检测胃窦切面前后径(A)及上下径(B)长度、计算横切面积(S=■AB/4)测定胃排空时间的结果。饮不同的液体后,用同一种测量方法测得的胃排空时间有显著性差异;而饮同一种液体后,用不同测量方法测得的胃排空时间无显著性差异.性别和年龄对测定结果无明显影响。认为用实时超声检测胃窦切面径线或横切面积测定胃排空时间具有操作简单,图像清晰,重复性好的优点,值得临床推广。

Gastric emptying time of thirty-three normal subjects, 16 males(39. 94±13. 63 years)and 17 females (38.12+11.29years),was examined by real-time ultrasonography. It was determined by measuring the anteroposterior(A)and the superoinferior(B)diameters of the cross-section of gastric antrum and by calculating the cross-sectional areas of the gastric antrum using the formula πAB/4. Measurements were taken after fasting over-night and at regular intervals of 10-minutes (500ml of drinking water or 5%GNS)or 15-minutes(500ml of milk) by the same examiner. Emptying time was considered to be the time at which the diameters and the arers returned to basal values respectively. The emptying time of different liquids was significantly different by the same measurement, while the emptying time of the same liquid was not significantly different by different measurements. The measurement values were unaffected by sex and age. From the above results,we consider that the detection of gastric emptying time by measuring the diameters and areas of the cross-section of gastric antrum with real-time ultrasonography is a method easy to operate,giving clear image and good repetition.