摘要
目的探讨多层螺旋CT血管造影(MSCTA)在颅内动脉瘤诊断中的价值。方法回顾性分析我院2004年3月—2007年10月间经手术证实的颅内动脉瘤患者55例。MSCTA采用GE16排螺旋CT,所得原始数据在工作站采用容积重建(VR)、最大密度投影(MIP)及曲面重建(CPR),对动脉瘤的大小、载瘤动脉、瘤颈、管壁钙化及瘤内血栓等方面进行显示,并与数字减影血管造影(DSA)图像对比分析,数据分析采用SPSS统计软件。结果MSCTA对颅内动脉瘤的显示敏感性和准确率分别为93.44%和100%,显示动脉瘤的平均直径为8mm,最小动脉瘤直径为3.41mm;清晰显示瘤颈43例,瘤壁钙化26例,瘤内血栓13例;DSA显示动脉瘤平均直径为6mm,清晰显示瘤颈33例,瘤壁钙化6例,瘤内血栓5例。MSCTA对于动脉瘤周边邻近骨质结构及瘤内血栓、管壁钙化及瘤颈的显示与DSA比较具有显著的优势(P<0.05)。结论MSCTA是诊断颅内动脉瘤较好的无创性影像学检查方法。
Objective To compare multislice CT angiography （MSCTA） and digital subtraction angiography （DSA） results with the surgical findings and to evaluate the clinical usefulness of MSCTA for the detection of intracranial aneurysm. Methods MSCTA and DSA images in 55 patients with intracranial aneurysm conformed by surgery or endovascular embolization were retrospectively analyzed. Reconstructions were carried out at a dedicated workstation using volume rendering （VR）, maximum intensity projection （MIP） and curved planar reformation （CPR）. Statistics analysis was performed with SPSS. Results The sensitivity and specificity of MSCTA for the detection of intracranial aneurysm was 93.44% and 100%, respectively. The mean diameter of aneurysms detected on MSCTA was 8 ram. MSCTA was superior to DSA in the assessment of aneurysm neck, wall calcification, thrombosis and the structures around aneurysm. MSCTA had a disadvantage for the small aneurysm （〈3 mm）. Conclusion MSCTA is a very useful non-invasive imaging method for the detection of intraeranial aneurysm.
出处
《中国医学影像技术》
CSCD
北大核心
2008年第11期1697-1700,共4页
Chinese Journal of Medical Imaging Technology
