Objective:To improve the CT diagnostic level of portal venous obstruction.
目的：提高门静脉阻塞的CT诊断水平。
Results: in Group a, damages to endothelial cells, vascular smooth muscles and the architecture of structures of veins were obvious, thrombosis appeared and finally resulted in venous obstruction.
结果：A组静脉血管内皮细胞、管壁平滑肌及构架结构均有明显损伤破坏，管腔内血栓形成，最终静脉闭锁。
Parenchymal and venous changes (20%) included an increased or irregular accumulation of contrast medium, obstruction or stasis of vein (1.8%).
实质和静脉改变(20%)：实质期胰腺轮廓内的对比剂浓度降低或不规则加深；静脉阻塞、血流淤滞(1.8%)。
Secondary lymphangiectasia may be caused by granulomas or cancer causing lymphatic obstruction, or increased central venous pressure (CVP) causing abnormal lymph drainage.
继发性淋巴管扩张症可能由肉芽肿或癌症造成淋巴管阻塞引起，或由中心静脉压的升高造成的流淋巴液流动异常引起。
Postoperative follow-up of 32 patients found two deaths (5 months and 27 months after surgery, respectively) attributed to obstruction of pulmonary venous drainage.
随访32例，2例肺静脉回流梗阻分别于术后5个月和2年3个月死亡。
Suspending bracket design is able to avoid obstruction of venous reflux effectively.
悬空支架式设计，能有效避免静脉回流受阻。
Suspending bracket design is able to avoid obstruction of venous reflux effectively.
悬空支架式设计，能有效避免静脉回流受阻。
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