Rösch J, Kozak B E, Keller F S, Dotter C T
Eur J Radiol. 1986 May;6(2):136-41.
Interventional angiography with the use of indwelling arterial catheters, anticoagulants, vasodilators and fibrinolytic agents, complements conventional angiography in the diagnosis of acute lower gastrointestinal bleeding. These interventional techniques prolong, augment or reactive bleeding and, by enabling better timing of examinations, they increase the diagnostic efficacy of angiography. In the reported series of 63 patients with acute lower gastrointestinal hemorrhage, interventions increased the diagnostic yield of angiography for demonstration of extravasation from 32% to 65% and decreased the percentage of negative angiograms from 27% to 16%. Indications, techniques and risks of interventional angiography in the diagnosis of acute lower gastrointestinal bleeding are discussed.
使用留置动脉导管、抗凝剂、血管扩张剂和纤维蛋白溶解剂进行的介入血管造影，在急性下消化道出血的诊断中补充了传统血管造影。这些介入技术可延长、增加或激发出血，并通过使检查时间更合理，提高了血管造影的诊断效能。在报道的63例急性下消化道出血患者系列中，介入操作使血管造影显示造影剂外渗的诊断率从32%提高到65%，并使血管造影阴性率从27%降至16%。本文讨论了介入血管造影在急性下消化道出血诊断中的适应证、技术和风险。
