放射性核素显像在小儿下消化道出血诊断中的应用

Diagnosis of hemorrhage of lower digestive tract with radionuclide scintigraphy in podiatric patients

应用99mTcO及99mTc-RBC动态显像诊断消化道出血20例，结果阳性18例（美克尔憩室11例，肠重复畸形5例，克隆氏病1例，溃疡性回肠炎1例均被手术证实），阴性2例（肠息肉2例，内窥镜证实）。认为此种检查操作简单，损伤小，安全，灵敏度高，可提示出血部位及原因，对诊断及治疗有极大帮助。

99mTC-4 and 99mTc-RBC scintigraphy were newer procedures for diagnosing hemorrhage of digestive tract. The causes of hemorrhage were identified in 18 cases (11 with Meckel's diverticulum, 5 double intestine, 1 Crohn's disease, 1 ulcerative ileities). The other 2 cases were with negative scintigraphic results (2 with intestinal polyp confirmed by endoscopy). Our results suggested that the scintigraphy is a simple, safe, and sensitive diangnostic method. It may identifying the site and cause of bleeding, thus may be helpful for the diagnosis and treatment.