The detection of small intestinal lesions, positive rate of diagnosing active small intestinal hemorrhage, the accurate rate of localization and qualitative diagnosis by digital subtraction angiography (DSA) were 80.9%,59.6%,76.6%,74.5% respectively.

• 肠系膜DSA检查对小肠病变的发现率、诊断小肠活动性出血的阳性率、定位、定性诊断的准确率分别为80.；9%25、59