1、 The superior mesenteric arteriogram is a better method for diagnosing bleeding of low digestive tract.
下消化道出血则可行肠系膜上动脉造影。
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2、 If the limb is still well perfused but the pulses are asymmetric or ABI is abnormal or us is abnormal then consult vascular surgery and obtain arteriogram.
如果肢体血流灌注良好但是两边脉搏搏动是不对称的或者abi、US检查不正常，那就需要请血管外科医生会诊，同时行动脉造影检查。
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