直接法CT静脉造影对下肢静脉曲张的诊断价值  

Direct CT Venography in the Diagnosis of Varicose Veins of Lower Limb

作　　者：姜建威[1] 殷允娟[1] 常军[1] 侯海燕[1] 王均干[1] 

机构地区：[1]南通大学第三附属医院无锡市第三人民医院影像科,江苏无锡214041

出　　处：《中国医学影像学杂志》2013年第11期825-828,共4页Chinese Journal of Medical Imaging

摘　　要：目的探讨直接法CT静脉造影(CTV)诊断下肢静脉曲张的价值。资料与方法对40例下肢静脉曲张患者(56侧患肢)行直接法CTV检查,并依据病变的轻重程度和范围对CTV图像进行分级,评估CT横断位结合容积再现(VR)及最大密度投影对静脉曲张的显示清晰度、范围;穿支静脉、深静脉及髂静脉显示情况;CTV与数字减影血管造影(DSA)的诊断符合情况。结果 56侧患肢均行激光腔内闭塞术,7例11侧下肢行DSA下的下肢静脉造影。VR图像质量分级中,优占92.86%(52/56),中占7.14%(4/56)。深静脉中,小腿静脉、股静脉、髂外静脉图像质量满足诊断的比率分别为94.34%、88.46%、27.27%。穿支静脉总显示率为98.21%(55/56)。CTV与DSA的诊断符合率为100.00%。结论直接法CTV诊断下肢静脉曲张方便、无创,与DSA造影结果符合率高,具有重要的临床价值。Purpose To explore the value of direct CT venography （CTV） for the diagnosis of varicose veins of lower limb. Materials and methods Forty patients diagnosed as varicose veins of lower limbs were enrolled. 40 patients with 56 involved limbs underwent direct CTV examination, and their images were stratified and evaluated according to the severity and the scope of the disease. Main assessment： definition and scope of CT axial scans combined with volume projection for the display of tile varicose veins rendering （VR） and maximum intensity situation for the display of perforating veins, deep veins and iliac veins; diagnostic compliance between CTV and DSA. Results All of the 56 involved limbs underwent laser intra-cavity occlusion surgery, among them 7 cases with 11 limbs underwent venous angiography under DSA at the same time. In the evaluation of the VR, excellent proportion was 92.86% （52/56）, moderate proportion was 7.14% （4/56）. Among the deep veins, ratio of the imaging that was able to meet the diagnostic standard was 94.34%, 88.46% and 27.27%, respectively for calf vein, femoral vein and external iliac vein. The total demonstration rate of perforating veins was 98.21% （55/56）. Diagnostic compliance between CTV and DSA was 100.00%. Conclusion Lower extremity direct CTV imaging is convenient and noninvasive tbr patients with varicose veins, with high compliance with DSA results, thus is significantly valuable for the guide of clinical treatment.

关 键 词：静脉曲张 下肢 体层摄影术 螺旋计算机 静脉造影术 

分 类 号：R543.6[医药卫生—心血管疾病] R445.3[医药卫生—内科学]