Van Fraeyenhoven L, Wilms G, Verschakelen J, Peene P
Department of Radiology, University Hospitals KU Leuven, Belgium.
J Belge Radiol. 1993 Dec;76(6):373-4.
Two cases showing systemic to pulmonary artery shunting, during the venous phase of bronchial arteriography are presented. In the first patient with chronic bronchiectasis, the shunting is believed to be due to newly formed vessels in the granulomatous tissue. At pulmonary angiography, the increased pressure in the pulmonary arteries simulated an angiographic defect due to dilution of the contrast by retrograde opacification from a left to right shunt. In a second patient with proven pulmonary embolism a true defect was present at pulmonary angiography. Systemic to pulmonary artery shunting is believed to develop secondary to hypoxia.
本文报告了两例在支气管动脉造影静脉期出现体循环至肺动脉分流的病例。第一例慢性支气管扩张患者，分流被认为是由于肉芽肿组织中新生血管所致。在肺血管造影时，肺动脉压力升高因左向右分流的逆行性造影剂稀释而模拟出造影缺损。第二例经证实为肺栓塞的患者，肺血管造影时存在真正的缺损。体循环至肺动脉分流被认为是继发于缺氧而发生的。
