CAJ | 학술논문

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。
목적：탐토직접법CT정맥조영（CTV）진단하지정맥곡장적개치。자료여방법대40례하지정맥곡장환자（56측환지）행직접법CTV검사，병의거병변적경중정도화범위대CTV도상진행분급，평고CT횡단위결합용적재현（VR）급최대밀도투영대정맥곡장적현시청석도、범위；천지정맥、심정맥급가정맥현시정황；CTV여수자감영혈관조영（DSA）적진단부합정황。결과56측환지균행격광강내폐새술，7례11측하지행DSA하적하지정맥조영。VR도상질량분급중，우점92.86%（52/56），중점7.14%（4/56）。심정맥중，소퇴정맥、고정맥、가외정맥도상질량만족진단적비솔분별위94.34%、88.46%、27.27%。천지정맥총현시솔위98.21%（55/56）。CTV여DSA적진단부합솔위100.00%。결론직접법CTV진단하지정맥곡장방편、무창，여DSA조영결과부합솔고，구유중요적림상개치。
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 rendering (VR) and maximum intensity projection for the display of the varicose veins; 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 for patients with varicose veins, with high compliance with DSA results, thus is significantly valuable for the guide of clinical treatment.