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对１７例小儿消化道出血的患儿作了（９９ｍ）ＴｃＯ４腹部显像．结果显示９例手术证实为Ｍｅｃｋｅｌ憩室的患儿中８例腹部有异常放射性浓聚，１例阴性．１例肠重复畸形，其腹部也有异常放射性浓聚区．另有升结肠息肉，出血性小肠炎．慢性结肠炎等７例均呈阴性．其诊断小儿消化道出血的灵敏度、特异性及准确率分别为９０．０％、１００．０％及９４．１％，表明放射性核素显像诊断消化道出血是一种简便、安全、准确性较高的方法．
(99m) TcO4 abdominal imaging was performed in 17 pediatric patients with gastrointestinal bleeding. The results showed that in 9 cases of Meckel diverticula, 8 cases of abdomen had abnormal radioactive concentration and 1 case was negative. 1 cases of intestinal deformity, abdomen also have abnormal radioactive accumulation area. Another liter of colon polyps, hemorrhagic enteritis. Chronic colitis and other 7 cases were negative. The sensitivity, specificity and accuracy of the diagnosis of pediatric gastrointestinal bleeding were 90.0%, 100.0% and 94.1%, respectively, indicating that radionuclide imaging is a simple, safe and accurate method for the diagnosis of gastrointestinal bleeding The higher the way.