摘要
目的评价16层螺旋CT血管成像在颅内血管性病变的应用价值。方法30例疑脑血管病变患者进行16层螺旋CT脑血管造影检查,采用VRT,MIP等技术三维重建脑血管图像,其中9例随后DSA脑血管造影。结果30例检查中发现动脉瘤8例,动静脉畸形11例,烟雾病2例,动脉狭窄9例。16层螺旋CT脑血管成像(SCTA)能清晰显示脑动脉主干及大脑前、中动脉1～5级分支,清楚显示动脉瘤瘤体(大小约4～15mm)、瘤颈及与载瘤动脉位置关系;能明确动静脉畸形供血动脉、引流静脉及瘤巢血管团形态大小;清楚显示侧支循环血管影以及Willis环与脑动脉不规则狭窄。比较其中经DSA检查的9例(4例动脉瘤、4例动静脉畸形、1例烟雾病)DSA与SCTA图像,发现SCTA诊断脑血管病变符合率达100%。结论6层螺旋CT脑血管成像是一种快速、无创、有效的脑血管病变诊断手段,可成为临床脑血管病变诊断的首选方法。
Objective To evaluate the clinical application value of 16-slice spiral CT angiography in intracranial vascular disease. Methods 30 patients with suspected intracranial vascular disease underwent 16-slice spiral CT angiography （SCTA）.The images were reconstructed with maximum intensity projection （MIP） and volume rendering technique （VRT）. 9 patients of them underwent digital subtraction angiography （DSA）. Results Of the 30 cases, 16-slice SCTA had detected aneurysm （n=8）, arteriovenous malformation （n=11）,moyamoya disease （n= 2） and arterial stenosis （n= 9）.All main trunks of cerebral artery and 1-5 grade branches of anterior and middle cerebral artery were well visualized in SCTA. Aneurysms＇body, neck, source vessel and their relationship were clealy displayed in 8 cases of aneurysm.In 11 cases of AVM,the feeding arteries,drain veins and vascular nidus （size, morphosis） were clearly shown. SCTA also clearly demonstrated moyamoya vessels and the stenosis of Willis circle and cerebral arteries. Comparison between SCTA and DSAin 9 cases showed that SCTA was the similar accuracy to DSA in diagnosing intracranial vascular disease. Conclusion 16-slice spiral CT angiography is the rapid, noninvasive and valid modality for detecting intracranial vascular disease and may be the first choice for diagnosing intracranial vascular disease.
出处
《中国CT和MRI杂志》
2007年第1期10-12,共3页
Chinese Journal of CT and MRI
