16层螺旋CT脑血管成像技术及其临床应用价值

目的：探讨多层螺旋CT脑血管成像技术及其诊断脑血管病变的价值。材料和方法：受检者69例,用GE公司Discovery Ultra 16层螺旋CT扫描仪按颅脑血管成像参数扫描,然后将所采集的参数送入ADW4．1高级后处理工作站,行VR、MIP、MPR进行重建。结果：69例中,脑血管无异常18例,检出脑血管动脉瘤29例、脑血管动静脉畸形15例、脑动脉狭窄或中断6例和烟雾病1例；VR、MIP、MPR都能清楚显示颅内血管情况,VR色彩鲜艳,层次丰富；MIP、MPR色彩单调,但对诊断价值较大。结论：多层螺旋CT颅脑血管成像术是一种无创伤的颅内血管性病变检查方法,定性、定位明确,确诊率高,可部分替代DSA。

Clinical Application of 16-Slice Spiral CT In Cerebral Angiography

Purpose:To evaluate technique of multi-slice spiral CT angiography and it's value in diagnosing cerebrovascular diseases. Materials and Metheds:69 cases of were studied with GE Discovery Ultra 16-slice spiral CT scanner.The raw data were then transferred to ADW4.1 workstation and reconstructed with Volume Rendering(VR)and Maxium intensity projection(MIP)and Muhiplanner Reconstraction (MPR).Results:In 69 cases,18 were normal,29 were aneurysms,15 were AVM,6 were vaso-occlusive,1 was Moya-moya disease.Ce- rebrovascular was dispoyed clearly in VR,MIP and MPR.The images aquired with VR was more colorful and spatial than MIP and MPR, but the diagnosis value of MIP and MPR was higher.Conclusions:MSCTA is an available noninvasive method in diagnosing the eerebrovas- eular disease.It could define character and position.MSCTA is an effective method and can be an altemtive of DSA partially.