摘要
目的:探讨烟雾病(MMD)侧枝循环的类型及其MRI表现。方法:回顾分析了16例成年MMD患者的MRI和MRA表现。MRI至少包括横断面T1WI、T2WI;16例行MRA检查,采用3D-TOF法。结果:MMD侧枝循环的来源主要有3条途径:颅底烟雾血管、来自大脑后动脉(PCA)的柔脑膜侧枝血管以及来自颈外动脉(ECA)系统穿过硬脑膜的侧枝血管。5例PCA侧枝循环表现正常,7例增加,6例减少;13例ECA侧枝血管表现正常(单侧12例),15例增加(其中双侧3例)。4例少量颅底烟雾血管,7例大量烟雾血管,5例减少、闭塞。MRA和T2WI均可显示颅底烟雾血管,PCA和ECA侧枝血管仅在MRA满意显示。结论:MRI和MRA是诊断MMD患者侧枝循环十分有用的工具。
Abstract
Objective: To evaluate MRI characteristics of collateral vessels in moyamoya disease(MMD). Method: Both MRI and MRA findings in 16 adult cases with MMD were analyzed retrospectively. Axial T1WI and T2WI were operated for MRI, while 3D-TOF was used for MRA. Results: Three main pathways of collateral circulation from skull base, PCA and ECA in MMD patients were found. Five cases of collateral networks from PCA demonstrated normal, while 7 patients manifested increased, 6 cases were decreased?鸦 13 patients of collateral vessels from ECA presented normal, but 15 cases were increased; 4 cases of skull base moyamoya vessels were slightly increased, 5 patients apparently increased and 7 cases decreased respectively. Skull base moyamoya vessels were displayed well on both MRA and T2WI images, while only on MRA images could demonstrate PCA and ECA vessels. Conclusion: Both MRI and MRA are effective ways to demonstrate collateral circulation in MMD patients.
关键词
脑底异常血管网病 /
磁共振成像
Key words
moyamoya disease /
magnetic resonance imaging
施万印;柏 亚;吴兴旺;余永强;沈玉先.
烟雾病侧枝循环的MRI表现[J]. 中国临床医学影像杂志. 2006, 17(4): 185-187
SHI Wan-yin;BO Ya;WU Xing-wang;YU Yong-qiang;SHEN Yu-xian.
MRI manifestation of collateral circulation in moyamoya disease[J]. Journal of China Clinic Medical Imaging. 2006, 17(4): 185-187
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