门静脉系统血栓形成的检测：对比增强磁共振血管造影与动脉内数字减影血管造影的比较。
Detection of thrombosis in the portal venous system: comparison of contrast-enhanced MR angiography with intraarterial digital subtraction angiography.
作者信息
Kreft B, Strunk H, Flacke S, Wolff M, Conrad R, Gieseke J, Pauleit D, Bachmann R, Hirner A, Schild H H
机构信息
Department of Radiology, University of Bonn, Sigmund-Freud-Strasse 25, 53105 Bonn, Germany.
出版信息
Radiology. 2000 Jul;216(1):86-92. doi: 10.1148/radiology.216.1.r00jl2386.
PURPOSE
To determine whether intraarterial digital subtraction angiography (DSA) can be replaced by contrast material-enhanced magnetic resonance (MR) angiography in the assessment of patency or thrombosis of the portal venous system in patients with portal hypertension.
MATERIALS AND METHODS
Thirty-six patients with portal hypertension underwent contrast-enhanced MR angiography and intraarterial DSA for assessment of the portal venous system. The images were evaluated for vessel patency or thrombosis of the portal, splenic, or superior mesenteric vein.
RESULTS
Of the 101 vessels evaluated, 42 were thrombosed. Overall sensitivity, specificity, and accuracy for the detection of thrombosis were 100%, 98%, and 99%, respectively, for MR angiography and 91%, 100%, and 96%, respectively, for DSA; differences between the imaging methods were not statistically significant. Only in four patients with six vessels (6%) were there discordant findings between MR angiography and DSA.
CONCLUSION
Noninvasive contrast-enhanced MR angiography has the potential to replace intraarterial DSA as the standard method to assess the whole portal venous system.
目的
确定在评估门静脉高压患者门静脉系统的通畅性或血栓形成时，动脉内数字减影血管造影（DSA）是否可被对比剂增强磁共振（MR）血管造影所取代。
材料与方法
36例门静脉高压患者接受了对比增强MR血管造影和动脉内DSA检查，以评估门静脉系统。对门静脉、脾静脉或肠系膜上静脉的血管通畅性或血栓形成情况进行图像评估。
结果
在评估的101条血管中，42条发生了血栓形成。MR血管造影检测血栓形成的总体敏感性、特异性和准确性分别为100%、98%和99%，DSA分别为91%、100%和96%；两种成像方法之间的差异无统计学意义。仅4例患者的6条血管（6%）在MR血管造影和DSA之间存在不一致的结果。
结论
无创对比增强MR血管造影有潜力取代动脉内DSA作为评估整个门静脉系统的标准方法。
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