Meves M, Beger H G
Leber Magen Darm. 1979 Dec;9(6):310-4.
In 196 patients suffering from duodenal ulcer disease, gastric emptying was measured by use of a radiolabelled testmeal. The measurements were performed during the digestive phase of gastric activity. On the basis of the predominantly exponential form of gastric emptying the T 1/2 was chosen as a measure of this function. The results were: 1. In 50 subjects without gastrointestinal disease the median T 1/2 was 59 min, mean and standard deviation were 58.8 +/- 9.13 min; 2. the T 1/2 value in 71 patients with deformed duodenal bulb (median 53 min) was significantly accelerated if compared to the normal value (2 p less than 0.01); 3. T 1/2 in 88 patients with deformed bulb combined with acute ulcer (median 49 min) was shorter than T 1/2 of the normal subjects (2 p less than 0.001); 4. T 1/2 in 25 patients with pyloric stenosis (median 102 min) was longer than normal value (2 p less than 0.001).
对196例十二指肠溃疡病患者，采用放射性标记试餐测定胃排空情况。测定在胃活动的消化期进行。基于胃排空主要呈指数形式，选择T1/2作为该功能的一项指标。结果如下：1. 50例无胃肠道疾病的受试者中，T1/2中位数为59分钟，均值及标准差为58.8±9.13分钟；2. 71例十二指肠球部变形患者的T1/2值（中位数53分钟）与正常值相比明显加快（P<0.01）；3. 88例球部变形合并急性溃疡患者的T1/2（中位数49分钟）短于正常受试者（P<0.001）；4. 25例幽门狭窄患者的T1/2（中位数102分钟）长于正常值（P<0.001）。
