Chang K H, Yi J G, Han M H, Kim I O
Department of Diagnostic Radiology, Seoul National University College of Medicine, Korea.
J Korean Med Sci. 1990 Jun;5(2):85-90. doi: 10.3346/jkms.1990.5.2.85.
The brain MR images of 23 patients with angiographically proved moyamoya disease were reviewed to evaluate the capability of MR to demonstrate vascular and parenchymal abnormalities. All the MR images were obtained on a 2.0 T superconducting system and included T1-weighted sagittal and T2-weighted axial images without implementation of flow compensation (FC). The vascular abnormalities demonstrated on MR images were narrowing of the cavernous internal carotid artery (ICA) (73%), narrowing or occlusion of the supraclinoid ICA (87%) and proximal middle cerebral artery (MCA) (91%), and multiple collateral vessels in the basal ganglia and/or thalamus (96%). The parenchymal abnormalities included ischemic infarctions (74%), predominantly located in watershed areas, hemorrhagic infarctions (26%), intracerebral hematomas (13%), and intraventricular hemorrhage (13%). In conclusion, MR imaging was a useful diagnostic modality for detecting both vascular and parenchymal abnormalities associated with moyamoya disease. This may obviate the need for invasive angiography as far as the diagnosis is wanted at the non-quantitative level.
回顾了23例经血管造影证实为烟雾病患者的脑部磁共振成像（MR），以评估MR显示血管和实质异常的能力。所有MR图像均在2.0T超导系统上获得，包括未实施血流补偿（FC）的T1加权矢状位和T2加权轴位图像。MR图像上显示的血管异常包括海绵窦段颈内动脉（ICA）狭窄（73%）、床突上段ICA狭窄或闭塞（87%）以及大脑中动脉（MCA）近端狭窄或闭塞（91%），基底节和/或丘脑出现多条侧支血管（96%）。实质异常包括缺血性梗死（74%），主要位于分水岭区，出血性梗死（26%），脑内血肿（13%）和脑室内出血（13%）。总之，MR成像对于检测与烟雾病相关的血管和实质异常是一种有用的诊断方法。就非定量水平的诊断而言，这可能无需进行有创血管造影。
