| 庞军,韩长利,吕品,戴世鹏,戴景儒.超高场3.0T磁共振磁敏感加权成像诊断颅内毛细血管扩张症[J].中国医学影像技术,2009,25(1):62~64 |
| 超高场3.0T磁共振磁敏感加权成像诊断颅内毛细血管扩张症 |
| Ultra-high field 3.0T MR susceptibility weighted imaging in diagnosis of intracerebral capillary telangiectasia |
| 投稿时间：2008-07-10 修订日期：2008-09-12 |
| DOI： |
| 中文关键词: 中枢神经系统血管畸形 磁共振成像 |
| 英文关键词:Central nervous system vascular malformations Magnetic resonance imaging |
| 基金项目: |
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| 中文摘要: |
| 目的 评价磁敏感加权成像(SWI)在诊断颅内毛细血管扩张症中的临床应用价值。方法 选取采用3.0T超高场磁共振的SWI及常规MR序列(包括自旋回波T1加权像、快速自旋回波T2加权像及体液衰减反转恢复序列)诊断为颅内毛细血管扩张症的22例患者,对SWI及常规MR序列进行分析。结果 常规MR序列中,8例T1WI呈稍低信号,T2WI呈较低信号,FLAIR呈低信号,2例T1WI呈等信号,T2WI呈稍高信号,FLAIR呈较高信号。12例T1WI、T2WI及FLAIR呈等信号而未能发现病变。在SWI中,所有22例患者均显示了颅内毛细血管扩张症的典型SWI影像特征。除4例病变局限性于桥脑外,其余累及基底节区、小脑、丘脑及大脑皮层下区。 结论 磁敏感加权成像是检出颅内毛细血管扩张症最为敏感的序列。 |
| 英文摘要: |
| Objective To assess the value of susceptibility weighted imaging (SWI) in the diagnosis of intracerebral capillary telangiectasia (ICT). Methods Twenty-two patients with ICT were examined with a ultra-high field 3.0T MR scanner. The sequences included spin echo T1 weighted imaging (T1WI), the turbo spin echo T2 weighted imaging (T2WI), fluid attenuated inversion recovery (FLAIR) and SWI, and the imagings obtained with SWI and conventional MR sequences were compared. Results In conventional MR sequences, slight hypointensity on T1WI and T2WI, and hypointensity on FLAIR were found in 8 cases, while isointensity on T1WI, slight hyperintensity on T2WI and FLAIR were observed in 2 cases. Isointensity on T1WI, T2WI and FLAIR were noticed in 12 cases, which made it was not possible to discover thefoci of ICT. Meanwhile, typical ICT image of SWI was found in all 22 cases. In 4 cases, the pons was the only involved area, while in the other cases the basal ganglia region, cerebellum, thalamencephalon and the hypotegum of pallium were involved at different degree. Conclusion SWI is the the most sensitive sequence to detect ICT. |
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