法医学杂志

法医学杂志 ›› 2017, Vol. 33 ›› Issue (4): 376-379.DOI: 10.3969/j.issn.1004-5619.2017.04.009

• 技术与应用 • 上一篇    下一篇

磁敏感加权成像在出血性弥散性轴索损伤鉴定中的应用

李  伟1，2   

  1. （1. 铁道警察学院公安技术系，河南 郑州 450053； 2. 河南中允司法鉴定中心，河南 郑州 450053）
  • 发布日期:2017-08-25 出版日期:2017-08-28
  • 作者简介:李伟（1973—），男，硕士，副主任法医师，副教授，主要从事法医临床学检案及教学；E-mail：leewei22868@163.com

Application of Susceptibility Weighted Imaging in the Identification of Hemorrhagic Diffuse Axonal Injury

LI WEI1,2   

  1. （1. Department of Public Security Technology, Railway Police College, Zhengzhou 450053, China; 2. Henan Zhongyun Forensic Science Center, Zhengzhou 450053, China）
  • Online:2017-08-25 Published:2017-08-28

摘要： 目的 探讨磁敏感加权成像（susceptibility weighted imaging，SWI）在出血性弥散性轴索损伤（diffuse axonal injury，DAI）法医学鉴定中的应用价值。 方法 对20例DAI的法医学鉴定资料进行回顾性分析，对其T1WI、T2WI、扩散加权成像（diffusion weighted imaging，DWI）、液体衰减反转恢复（fluid attenuated inversion recovery，FLAIR）、磁敏感加权成像（susceptibility weighted imaging，SWI）序列影像资料进行统计分析。 结果 DAI出血灶多位于脑组织表浅区，SWI对出血性DAI的检出率最高，与其他序列成像之间的差异有统计学意义（P＜0.05）。 结论 SWI在DAI法医学鉴定中具有重要的意义。

关键词: 法医学, 弥散性轴索损伤, 磁共振成像, 磁敏感加权成像

Abstract: Objective To explore the application value of susceptibility weighted imaging （SWI） in the forensic identification of hemorrhagic diffuse axonal injury （DAI）. Methods The forensic identification materials of 20 DAI cases were analyzed retrospectively. The sequence image materials of T1WI, T2WI, diffusion weighted imaging （DWI）, fluid attenuated inversion recovery （FLAIR） and susceptibility weighted imaging （SWI） were analyzed statistically. Results DAI related hemorrhage focus commonly located in the superficial area of brain. The detection rate of hemorrhage focus by SWI was the highest, which showing significant difference （P＜0.05） compared with other sequence images. Conclusion The SWI plays an important role in the forensic identification of DAI.

Key words: forensic medicine, diffuse axonal injury, magnetic resonance imaging, susceptibility weighted imaging

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