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目的 研究肝癌合并动—静脉瘘 (AVF)在CT增强扫描中的表现及对其诊断价值。方法 50例肝癌合并AVF患者均先行螺旋CT平扫及增强扫描 ,后经肝动脉造影证实。对比分析CT征象和肝动脉造影所见。结果 1 7例动—门静脉瘘 (中央型 ) ;1 0例动—门静脉小分支瘘 (周围型 ) ;3例动—肝静脉瘘 ;5例合并上述三种表现 ;2例合并动—门静脉瘘及动—肝静脉瘘 ;另 1 3例无特征性。CT显示AVF征象 37例 ,敏感性 74%。提示AVF诊断 2 6例 (52 % )。结论 门静脉和 /或下腔静脉提前显影 ,尤其相应肝叶、段或亚段性显著强化视为AVF的诊断依据。并对其局限性进行了讨论
Objective To study the performance of hepatocellular carcinoma combined with arteriovenous fistula (AVF) in CT enhanced scan and its diagnostic value. Methods 50 patients with hepatocellular carcinoma with AVF were treated with spiral CT plain scan and enhanced scan, and were confirmed by hepatic arteriography. Comparative analysis of CT signs and hepatic arteriography findings. Results Seventeen cases of arterial-portal fistula (central type); 10 cases of arterioportal portal vein spasm (peripheral type); 3 cases of arterial-hepatic vein fistula; 5 cases with the above-mentioned three types of performance; 2 cases combined with arterial-portal fistula And moving - hepatic vein fistula; the other 13 cases without characteristics. CT showed 37 cases of AVF with a sensitivity of 74%. Prompt diagnosis of AVF 26 cases (52%). Conclusion The advance visualization of the portal vein and/or inferior vena cava, especially the corresponding hepatic lobe, segment or sub-segmental enhancement, is considered as the diagnostic basis for AVF. And discussed its limitations