64层螺旋CT血管成像对主动脉病变的诊断价值  

Diagnostic Value of 64--slice Spiral CT Angiography in Aortic Diseases

作　　者：仲建全[1,2] 刘勇[3] 罗丽[1] 杨超[1] 程广金[1] 唐光才[1] 

机构地区：[1]泸州医学院附属医院放射科CT室,四川泸州646000 [2]四川省自贡市第一人民医院放射科 [3]泸州医学院附属中医院放射科

出　　处：《实用放射学杂志》2010年第4期496-499,共4页Journal of Practical Radiology

摘　　要：目的探讨64层螺旋CT血管成像技术对主动脉病变的诊断及临床应用价值。方法32例主动脉病变患者行64层螺旋CT扫描，并对原始数据采用多平面重组（MPR）、曲面成像（CPR）、最大密度投影（MIP）、容积再现（VR）、高级血管分析（AVA）处理。32例主动脉病变均经临床、手术证实。结果32例主动脉病变中，主动脉夹层16例、假性动脉瘤7例、真性动脉瘤4例、主动脉弓缩窄3例、主动脉离断2例。MPR对内膜破口、附壁血栓显示较佳，内膜片及初始破口显示率为81％（13／16），7例假性动脉瘤周围血栓，显示率100％（7／7）；CPR简单、直观显示病变全程，显示率100％（32／32）；MIP对钙化及管径精确测量颇有价值，显示率84％（27／32）；VR能明确病变的范围和周围血管关系，显示率100％（32／32）；AVA对测量血管管径、血管横截面积具有意义，显示率44％（14／32）。结论64层螺旋CT血管成像技术对主动脉病变的诊断具有重要意义。Objective To explore the value of the 64--slice spiral CT angiography（SCTA） in diagnosis of aortic disease. Methods 32 cases with aortic diseases confirmed by operation underwent 64--slice spiral CT enhanced scan, raw data were dealed with multiplanar reformation（ MPR）, curved plannar reformation（CPR） , maximum intensity projection（ MIP）, volume rendering（VR） and advantage vessel analysis（AVA）. Results The aortic disease in 32 cases included aortic dissection in 16 cases,pseudoaneurysm in 7 cases,true aneurysm in 4 cases,narrowing of the aortic arch in 3 cases and amputation of aortic arch in 2 cases. The endometrial break and mural thrombus better showed with MPR and the detecting rat of intimal flake and the initial break was 81%（13/16）,while for the periphery thrombosis in 7 cases with pseudoaneurysm,the detecting rate was 100% （7/71. The showing rate for displaying the whole with CR was 100%（32/32）. In showing calcification and accurate of vessels with MIP, the detecting rate was 84 %（27/32）. The showing rate of the extent of the disease and the relationship between peripheral vascular was 100 %（32/32）. AVA was of significance in the measurement of vascular diameter and vascular cross--sectional area, the showing rate was 44 %（14/32）. Conclusion 64--slice spiral CT angiography is of significance in diagnosing aortic diseases.

关 键 词：主动脉 体层摄影术 X线计算机 血管造影术 

分 类 号：R543.1[医药卫生—心血管疾病] R814.42[医药卫生—内科学]