脑脂肪栓塞的磁敏感加权成像

Susceptibility-weighted imaging of cerebral fat embolism.

作者信息

Zaitsu Yuri, Terae Satoshi, Kudo Kohsuke, Tha Khin Khin, Hayakawa Mineji, Fujima Noriyuki, Yoshida Daisuke, Tsukahara Akiko, Shirato Hiroki

机构信息

Department of Radiology, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan.

出版信息

J Comput Assist Tomogr. 2010 Jan;34(1):107-12. doi: 10.1097/RCT.0b013e3181a962c1.

DOI:10.1097/RCT.0b013e3181a962c1

PMID:20118732

Abstract

Cerebral fat embolism (CFE) causes microinfarcts, vasogenic edema, and petechiae in the brain. Conventional magnetic resonance imaging has been reported to effectively visualize microinfarcts and vasogenic edema in CFE, but not petechiae. We report 3 cases of CFE in which susceptibility-weighted imaging distinctly demonstrated multiple minute hypointense foci in the brain, which were interpreted as petechiae, susceptibility-weighted imaging is a useful adjunct to conventional magnetic resonance imaging for the evaluation of CFE.

摘要

脑脂肪栓塞（CFE）可导致脑部出现微梗死、血管源性水肿和瘀点。据报道，传统磁共振成像能够有效显示CFE中的微梗死和血管源性水肿，但无法显示瘀点。我们报告了3例CFE病例，其中磁敏感加权成像清晰地显示出脑部多个微小的低信号灶，这些病灶被认为是瘀点。磁敏感加权成像对于评估CFE而言，是传统磁共振成像的一种有用辅助手段。