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目的以放射性核素法为标准，研究超声胃窦中点面积法测胃排空功能的可靠性，应用于糖尿病胃病（ＤＧＰ）的诊断，及对方法进行简化。方法对照组 １４例，糖尿病组 １５例，分２ ｄ接受超声和核素检查。结果两组两种方法胃排空曲线相似，两种方法得到的两组胃半排空时间（Ｔ ）十分相近，差异无统计学意义（Ｐ＞０．０５），且具良好相关性（ｒ＝０．７６，０．９６）；以对照组超声Ｔ ±２ ｓ即８７ｍｉｎ和１１７ｍｉｎ为诊断标准，糖尿病人１３例存在ＤＧＰ，４例胃排空过速，９例胃排空延迟。对照组餐后３３，８７，１１７ ｍｉｎ的胃窦扩张率Ｒ_(３３)１００％，Ｒ_(８７)＞５０％，Ｒ_(１１７)＜５０％；延迟组Ｒ_(３３)９７％，Ｒ_(１１７)＞５０％；过速组校正Ｒ３３＝１００％，相应的Ｒ８７＜５０％。结论超声法检查胃排空可靠，测定空腹和餐后３３，８７，１１７ｍｉｎ的胃窦面积变化可诊断ＤＧＰ及分型，即胃排空过速型和胃轻瘫，简化超声检查具可行性。
Objective To study the reliability of gastric emptying function by mid-point area of antral gastroscopy with radionuclide method as a standard to diagnose diabetic gastropathy (DGP) and to simplify the method. Methods 14 cases of control group, diabetes mellitus group of 15 cases, 2 d ultrasound and radionuclide examination. Results The gastric emptying curves of the two groups were similar, and the two groups had similar gastric emptying time (T), the difference was not statistically significant (P> 0.05), and had good correlation (r = 0.76,0.96) .There was DGP in 13 cases of diabetes mellitus, 4 cases of gastric emptying and 9 cases of delayed gastric emptying in control group T ± 2 s, 87min and 117min. In the control group, the gastric dilatation rate was 33%, 77%, 50%, and 117% less than R_ (33) )> 50%; Overspeed correction R33 = 100%, corresponding R87 <50%. Conclusion Ultrasonic examination of gastric emptying reliable, fasting and determination of gastric antrum area after 33,87,117 min postprandial change can be diagnosed DGP and classification, namely, gastric emptying and gastroparesis, simplified ultrasound is feasible.