HSCTA盆腔肿瘤供血动脉成像及临床应用

目的探讨多排螺旋CT血管造影（MSCTA）盆腔肿瘤供血动脉成像的临床应用价值。方法搜集77例行腹盆部CT增强扫描的盆腔肿瘤患者资料,采用容积再现（VR）血管生长技术（AV）进行血管重建,以手术结果为准,分析通过显示供血动脉判断肿瘤定位诊断的准确性。结果卵巢肿瘤40例48侧,最大径3.5cm-17.5cm,平均6.8cm,患侧由卵巢动脉（OA）、子宫动脉卵巢支（OB）共同供血18侧,患侧由OA供血12侧,患侧由OB供血7侧,OA供血发生率为62.5%（30/48）,OB发生率为52.1%（25/48）,肿瘤定位诊断准确率为85.4%（41/48）。外生性子宫肌瘤13例18个肿块,肿瘤最大径6.1cm-17cm,平均8.9cm,均显示双侧子宫动脉子宫支（UB）供血,5侧OA参与供血,发生率27.8%（5/18）,肿瘤定位诊断准确率为100%（13/13）。5例乙状结肠癌均为乙状结肠动脉供血,直肠癌19例,6例直肠上动脉供血,11例直肠上、下动脉供血,2例直肠上、下动脉及骶正中动脉供血,肿瘤定位诊断准确率为100%（24/24）。结论 MSCTA能清楚显示肿瘤供血动脉,为盆腔肿瘤的定位提供较准确的依据。

Multi-slice spiral CT Angiography(MSCTA) of Pelvic Tumor Feeding Artery and its Clinical Application

Objective To investigate the clinical application value of multi-slice spiral CT angiography （MSCTA） of pelvic tumor feeding artery. Methods Abdominal enhanced CT data of 77 cases with pelvic tumors were collected. Vessels were reconstructed by w〉ltune rendering（VR） and add vessel（AV）. The accuracy of tumor localization diagnosis by feeding artery were analyzed compare to operation results. Results In 40 cases （48 sides） of patients with ovarian tumors, the maximum diameter of tumors was 3.5 - 17.5cm, and the average was 6.8cm. 18 sides were fed by ovarian artery（OA） and ovarian branch（OB）. 12 sides were fed by OA. 7 cases were ted by OB. The incidence rate of feeding by OA was 62. 5%（30/48）, and feeding by OB was 52.1%（25/48）. The accuracy of tumor location was 85. 4%（41/48）. 13 cases（18 massed） suffered with exogenous uterine fibroid. The maxinmum diameter was 6.1 - 17.0cm, and the average was 8.9cm, All cases were led by UB, and 5 sides were also led by OA（5/18）, and the incidence rate was 27.8（5/18）. The accuracy of tumor location was 100% （ 13/1 3）. 5 cases with sigmoid colon carcinoma were fed by sigmoid colon artery. 19 cases suffered with rectal carcinoma. 6 cases were led by superior rectal artery. and I I cases were suffered by both superior and inferior rectal artery, and 2 cases suffered by superior, inferior rectal artery and middle sacral artery. The accuracy of tumor location was 100%（24/24）. Couclusiou MSCTA can show the feeding artery of tumors, and pro- vide accurate basis for pelvic tumor localization.