目的：探讨3.0T磁共振磁敏感加权成像（Susceptibility weighted imaging，SWI）在明确诊断脑内毛细血管扩张症（Intracerebral capillary telangiectasia，ICT）中的应用价值。方法：选取采用3.0T超高场MR常规扫描及MR增强扫描诊断为ICT的12例患者，对SWI、常规MR序列及增强MR图像进行分析。结果：12例病灶分别位于脑桥或基底节区，在T1WI、T2WI、DWI、ADC及FLAIR序列上均呈等信号。在SWI中，12例ICT均显示为局灶性低信号，与增强MRI病灶强化范围完全一致。结论：SWI是诊断ICT最敏感的序列。
Abstract
Objective: To evaluate the value of 3.0T MR susceptibility weighted imaging(SWI) in diagnosis of intracerebral capillary telangiectasia(ICT). Methods: Twelve patients with ICT underwent an ultra-high field 3.0T MR scanning. The sequences included spin-echo T1-weighted images(T1WI), turbo spin-echo T2-weighted images(T2WI), and diffusion weighted images(DWI), fluid attenuated inversion recovery(FLAIR), SWI and postcontrast T1WI. The images of SWI, conventional MR and enhanced MR sequences were analyzed． Results: All 12 cases of lesion located in pons or basal ganglia, showed isointensity on T1WI, T2WI, DWI and FLAIR. Meanwhile, they demonstrated focal hypointensity on SWI, which were completely consistent with the enhanceed MRI lesions． Conclusion: SWI is the most sensitive approach in the diagnosis of intracerebral capillary telangiectasia.
关键词
毛细血管扩张 /
脑血管障碍 /
磁共振成像
Key words
Telangiectasis /
Cerebrovascular disorders /
Magnetic resonance imaging
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