脑血管病变115例CT血管成像分析

目的：探讨64层螺旋CT脑血管成像（MSCTA）对脑血管病变的诊断价值。方法：经64层螺旋CT脑血管成像检查的病例,使用减影方法进行后处理,得到VR、MIP图像,原始图像重建得到MPR、CPR图像,综合四种图像诊断脑血管病变,并与DSA诊断进行对照分析。结果：115例脑血管病变中,动脉瘤62例（53.91%）、动静脉畸形（AVM）6例（5.21%）、脑静脉畸形（CVM）3例（2.61%）,脑动脉狭窄或闭塞38例（33.04%）、烟雾病3例（2.61%）、海绵窦动静脉瘘2例（1.74%）、海绵状血管瘤1例（0.87%）。其中46例DSA检查结果均与MSCTA一致。结论：64层螺旋CT脑血管成像是一种安全、快速、无创的检查方法,可作为颅内血管性病变筛查和术前评估的首选检查技术。

The analysis of CT angiography in 115 cases of cerebrovascular diseases

Objective：To investigate the value of 64-slice spiral CT angiography（MSCTA） in the diagnosis of cerebrovascular diseases. Methods：The patients underwent cerebral 64-slice spiral CT angiography. Subtraction way was used to process image to get image of VR,MIP. Images of MPR,CPR were obtained by primagry image reconstrnction. The 4 kinds of image were combinated to diagnose cerebrovascular diseases,and compared with the diagnosis of DSA. Results：Among 115 patients of cerebrovascular diseases,62 cases were aneurysms （53.91%）,6 cases arterio-venous malformation （AVM） （5.21%）,3 cases cerebral venous alformation （CVM） （2.61%）,38 cases cerebral artery stenosis or occlusion （33.04%）,3 cases moyamoya disease （2.61%）,2 cases arteriovenous fistula of cavernous sinus （1.74%）,and 1 case was caveronma （0.87%）. Conclusion：Cerebral 64-slice spiral CT angiography is a safe,quick and noninvasive examination method. It may be used as a first choice for screening and preoperative assessment for cerebrovascular diseases.