Huang C K, Chen G H, Nain H M, Wahn J R, Cheng Y P, Chang C S, Liu J H, Ho K S
Department of Internal Medicine, Taichung Veterans General Hospital, Taiwan, R.O.C.
Zhonghua Yi Xue Za Zhi (Taipei). 1995 Feb;55(2):137-42.
To evaluate the clinical applications and reproducibility of real-time ultrasound in detecting gastric motility, result of study of gastric motility in normal volunteers is reported.
From January to May 1994, 21 normal volunteers, with a mean age of 31.7 years, 10 females and 11 males, entered this study. They fasted overnight. After consuming a liquid test meal (500 cc, 80.627 Kcal, containing sieved bran particles), they received real-time ultrasound examinations immediately to detect gastric peristalsis and transpyloric fluid flow. To evaluate the reproducibility of real-time ultrasound methods in gastric motility, four of the volunteers repeated this examination at an interval of one week.
The results showed that the mean gastric peristaltic cycle in humans is 24.29 seconds (s); mean forward transpyloric flow duration is 4.00 s; mean retrograde transpyloric flow duration is 1.45 s and mean time needed for initiating gastric peristaltic contractions after the test meal is 138.06 s. Age, body weight and body surface have a positive correlation to the mean gastric peristaltic cycle. Females, with a less body weight and body surface than males, exhibit a faster gastric peristaltic cycle. Real-time ultrasound is a reproducible method for studying gastric motility.
Real-time ultrasound is an inexpensive, reproducible and practical method for studying gastric motility. In addition, age, body weight and body surface have a positive correlation to gastric peristaltic cycle, with females, whose body weight and body surface are less than males, showing a shorter gastric peristaltic cycle.
为评估实时超声在检测胃动力方面的临床应用及可重复性，现报告正常志愿者胃动力的研究结果。
1994年1月至5月，21名平均年龄31.7岁的正常志愿者（10名女性，11名男性）进入本研究。他们隔夜禁食。在摄入一份液体试验餐（500毫升，80.627千卡，含筛过的麸皮颗粒）后，立即接受实时超声检查以检测胃蠕动和经幽门的液体流动。为评估实时超声方法在胃动力检测中的可重复性，4名志愿者间隔一周重复此项检查。
结果显示，人类平均胃蠕动周期为24.29秒；平均经幽门向前流动持续时间为4.00秒；平均经幽门向后流动持续时间为1.45秒，试验餐后启动胃蠕动收缩所需平均时间为138.06秒。年龄、体重和体表面积与平均胃蠕动周期呈正相关。女性体重和体表面积小于男性，其胃蠕动周期较快。实时超声是研究胃动力的一种可重复的方法。
实时超声是一种用于研究胃动力的廉价、可重复且实用的方法。此外，年龄、体重和体表面积与胃蠕动周期呈正相关，体重和体表面积小于男性的女性胃蠕动周期较短。
