128层螺旋CT血管造影与多平面重建对腹腔巨大肿块定位诊断的对比分析  

Comparative analysis of 128-slice spiral CT angiography and muitiplanar reconstruction in localization of abdominal huge mass

作　　者：陈刚文[1] 龙学红[2] 阳祥春[1] 王建秋[1] 易先武[3] 谢明辉[1] 

机构地区：[1]宜宾市第一人民医院放射科,四川宜宾644000 [2]宜宾市第一人民医院综合病房科,四川宜宾644000 [3]宜宾市第一人民医院普外科,四川宜宾644000

出　　处：《实用放射学杂志》2012年第9期1396-1399,1419,共5页Journal of Practical Radiology

基　　金：宜宾市卫生局科研立项课题

摘　　要：目的 比较128层螺旋CT血管造影（CTA）与多平面重建（MPR）对腹腔巨大肿块（≥5 cm）的定位诊断价值.方法 59例经B超或CT平扫发现的腹部巨大实性肿块行多期CT增强扫描检查.1.0 mm层厚、1.0 mm间距扫描.原始资料经0.60 mm层厚、0.60 mm间距重建,获得轴面源图像（ASI）,数据传输至工作站.选取动脉期扫描数据行肿瘤供血动脉MIP、VRT重建,静脉期数据行肿块MPR重建.对比分析CTA、MPR及CTA＋MPR对腹腔巨大肿块的定位诊断价值.结果 CTA重建54例,5例良性肿瘤CTA重建失败;59例肿瘤均行MPR重建.CTA显示供血动脉113支：35例癌性肿块显示供血动脉92支,19例非癌性肿瘤显示了21支供血动脉.通过CTA、MPR和CTA＋MP图像分别判断肿瘤的来源,CTA诊断42例,MPR确诊43例,CTA＋MPR 51例.CTA、MPR重建对肿块的定位诊断价值无显著差异（P〉0.05）;CTA＋MPR的诊断价值明显优于CTA、MPR重建（P〈0.005）.结论 CTA 血管造影有助于判定肿块的位置、起源.CTA＋MPR对肿瘤的定位诊断价值明显优于CTA或MPR.Abstract：Objective To compare the wdue of 128-slice spiral CT angiography（CTA） and multiplanar reconstruction（MPR} in localization of abdominal large mass（ ≥5 cm）. Methods Mutiphase enhanced scantling wss performed in 59 cases with abdominal huge masses found previously by uhrasound or CT plain scan. 1.0 mm collimation thickness and 1.0 mm interval were chosen in por- tal venous phase. The raw data were first reformated to bring out axial souce images{ASI} with 0.60 mm collimation thickness and 0.60 mm reconstruction interval. The ASI image data were conveyed to workstation and dealt with CTA and MPR. Results 113 feeding arteries were showed in 54 cases ,in which 92 feeding arteries displayed in 35 cases of malignant and 21 feeding arteries displayed in 19 cases of malignant tumor. 42,43 and 51 cases was correctly diagnosed respectively by CTA, MPR and CTA plus MPR. There was no sigmicant difference between CTA and MPR（P〉0.05},while CTA plus MPR had significant value than CTA and MPR（P〈0.05） in localization of abdominal huge masses. Conclusion CTA is helpful to discriminate the localization of abdominal large mass,but CTA plus MPR is superior to CTA and MPR.

关 键 词：腹部 肿瘤 体层摄影术 X线计算机 

分 类 号：R739.9[医药卫生—肿瘤] R814.42[医药卫生—临床医学]