腔静脉三维动态增强磁共振血管成像  

Three dimensional dynamic contrast enhanced magnetic resonance angiography of the vena cava

作　　者：林江[1] 陈祖望[1] 周康荣[1] 沈继章[1] 陈财忠[1] 施伟斌[1] 崔珊静[1] 

机构地区：[1]上海医科大学中山医院放射科,200032

出　　处：《中华放射学杂志》2000年第11期761-764,共4页Chinese Journal of Radiology

摘　　要：目的　评价三维动态增强磁共振血管成像 (3DDCEMRA)用于诊断腔静脉病变的价值。方法　 5 2例疑有腔静脉畸形、血栓形成、狭窄、闭塞或受压的患者接受了 3DDCEMRA成像检查。分析 3DDCEMRA的图像质量及其对各种腔静脉病变和侧支循环的显示情况 ,并把 33例 3DDCEMRA同常规腔静脉造影术 (15例 )和手术 (18例 )进行比较。结果　 5 2例 3DDCEMRA图像均无伪影 ,血管显示清楚 ,达到诊断要求。 3DDCEMRA均清楚地显示了腔静脉正常解剖、畸形和各种病变 ,对腔静脉梗阻的部位、程度、梗阻原因和侧支分布均显示较好。以常规腔静脉造影和手术为标准 ,3DDCEMRA显示腔静脉病变的敏感性和特异性都为 10 0 % ,另外它还具有能同时显示血管外病灶和多方位显示病变等优点。结论　 3DDCEMRA简单易行 。Objective To evaluate the usefulness of three dimensional dynamic contrast enhanced magnetic resonance angiography(3D DCE MRA) in the diagnosis of vena caval abnormalities. Methods 3D DCE MRA was performed on fifty two patients with suspected vena caval anomaly, thrombosis, stenosis, occlusion, or compression. Image quality and the presence of venous abnormalities and collaterals were evaluated. Comparison with conventional venacavography( n =15) and surgical findings( n =18) was made. Results 3D DCE MRA images were of diagnostic quality without artifact for all 52 patients. 3D DCE MRA clearly showed vascular anatomy, anomaly and various disorders. The site, extent, cause of venous obstruction, and collateral pathways were well depicted. According to venography or surgery, the sensitivity and specificity of 3D DCE MRA in the diagnosis of abnormalities of vena cava were both 100%. In addition, it had advantages regarding demonstration of extravascular lesions and multiplanar capabilities. Conclusion 3D DCE MRA is simple to perform and accurate in detecting various vena caval abnormalities.

关 键 词：磁共振血管影术 静脉造影术 腔静脉 对比研究 

分 类 号：R445.2[医药卫生—影像医学与核医学]