Carotid artery stenosis: Prospective comparison of CT, three-dimensional gadolinium-enhanced MR, and conventional angiography
Carotid artery stenosis: Prospective comparison of CT, three-dimensional gadolinium-enhanced MR, and conventional angiography
复制标题
DOI：
10.1148/radiology.220.1.r01jl35179
复制
发表时间：
2001-07-01
期刊：
影响因子：
19.7
通讯作者：
Marsault, C
中科院分区：
文献类型：
--
作者：
Randoux, B;Marro, B;Marsault, C
目得：前瞻性比较钆增强磁共振（MR）血管造影和计算机断层扫描（CT）血管造影与数字减影血管造影（DSA）用于检测动脉粥样硬化性狭窄和斑块形态在carotid bifurcation.MATERIALS和METHODS：44颈动脉（22例）进行了分析，使用CT血管造影，增强MR血管造影和DSA。CT和增强MR血管造影采用最大密度投影和多平面容积重建。以下四个功能进行了分析：狭窄程度的基础上，北美症状颈动脉内膜切除术试验标准，狭窄的长度，管腔表面，并存在ulcers.RESULTS：有显着的相关性之间的CT血管造影，增强MR血管造影，DSA狭窄的程度和长度。44例中2例在增强磁共振血管造影和CT血管造影时低估了狭窄程度。CT血管造影对颈内动脉重度狭窄的诊断敏感性和特异性分别为100%和100%，增强MR血管造影的敏感性和特异性分别为93%和100%。管腔表面不规则最常见于CT血管造影。结论：CT血管造影、增强磁共振血管造影与DSA对颈动脉狭窄的诊断有显著相关性。增强MR血管造影或CT血管造影可用于充分评估颈动脉狭窄。
PURPOSE: To prospectively compare gadolinium-enhanced magnetic resonance (MR) angiography and computed tomographic (CT) angiography with digital subtraction angiography (DSA) for use in detecting atheromatous stenosis and plaque morphology at the carotid bifurcation.MATERIALS AND METHODS: Forty-four carotid arteries (in 22 patients) were analyzed by using CT angiography, enhanced MR angiography, and DSA. CT and enhanced MR angiograms were reconstructed with maximum intensity projection and multiplanar volume reconstruction. The following four features were analyzed: degree of stenosis on the basis of North American Symptomatic Carotid Endarterectomy Trial criteria, length of stenosis, luminal surface, and presence of ulcers.RESULTS: There was significant correlation between CT angiography, enhanced MR angiography, and DSA for degree and length of stenosis. With enhanced MR angiography and CT angiography, degree of stenosis was underestimated in two of 44 cases. No case of overestimation with CT angiography was found. Severe internal carotid artery stenoses were detected with high sensitivity and specificity: 100% and 100%, respectively, with CT angiography; 93% and 100%, respectively, with enhanced MR angiography. Luminal surface irregularities were most frequently seen at CT angiography. With CT angiography and enhanced MR angiography, more ulceration was detected than with DSA.CONCLUSION: There was a significant correlation between CT angiography, enhanced MR angiography, and DSA in evaluation of carotid artery stenosis. Enhanced MR angiography or CT angiography can be used to adequately evaluate carotid stenosis.