摘要
目的探讨Moyamoya病的多层螺旋CT血管成像(CTA)临床应用价值。方法30例Moyamoya病病人,其中男性18例,女性12例,年龄l4～62岁,平均年龄42.60岁。发病高峰中30～40年龄段为12例,40～50年龄段10例。做16层螺旋CTA,扫描参数为:250kV,250mA,螺距15,扫描层厚1mm。同时6例又行DSA检查,将其CTA结果与DSA图像进行比较。结果30例中病变累及颈内动脉者共27例,占总例数的90.0%,受累段均为颈内动脉末段。病变累及双侧者26例(占总例数86.7%)。30例CTA均清晰显示发生狭窄、闭塞的颈内动脉远端、大脑前中动脉近端及迂曲扩张的大脑后动脉、后交通动脉等代偿动脉,狭窄血管显示率100%;清晰显示脑底异常血管网者28例,异常血管网显示率93.3%。30例中有6例同时行DSA检查,两者检查结果完全一致。结论CTA可以清楚显示Moyamoya病脑血管改变特点,包括颅内血管狭窄及脑底异常血管网,可以考虑作为Moyamoya病诊断的重要影像学筛查方法之一。
Objective To study the clinical application value of 16-slice computerized tomography angiography （CTA） in Moyamoya disease. Methods Thirty parients with Moyamoya were enrolled,male 18,female 12,aged 14 - 62 years,mean age 42,60 year. In pathagenic peak ,there were 12 cases of 30 - 40 years old, 10 cases of 40 - 50 years old. The imaging data of 30 patients with Moyamoya disease diagnosed by CTA were analyzed retrospectively. The digital subtraction angiography （DSA） was performed in 6 cases,and the imagings were compared with the results of CTA. Results The narrowed internal carotid artery （ICA） were showed in 27 cases clearly, with a proportion of 90.0 %, and the involved parts were the distal segments of ICA. There were 26 cases bilaterally involved, with a proportion of 86.7 %, and 4 unilaterally involved. The CTA of all the 30 cases showed the narrowed ICA/anterior cerebral artery （ACA）/middle cerebral artery （MCA）,the dilated posterior cerebral artery （PCA）/ posterior communicating artery （PcoA） and abnormal vascular nets clearly. The rate of display of narrowed vessels was 100 %. In all of the 30 patients,CTA showed the abnormal vascular nets at the base of the cranium in 28 cases. The displaying rate of abnormal vascular nets was 93.3 %. Among the 30 cases, 6 were examed by DSA at the same time and the results were identical. Conclusion The CTA could show the changes of vessels in Moyamoya disease clearly eg. the stenosis of intracranial vessels and the abnormal vascular nets. The CTA could be considered as one of the important imaging screening approaches for Moyamoya disease.
出处
《生物医学工程与临床》
CAS
2008年第1期20-25,共6页
Biomedical Engineering and Clinical Medicine
