天津医药

• 临床论丛 •    

磁敏感加权成像在弥漫性轴索损伤中的临床价值

崔明惠1,夏爽2,祁吉13   

  1. 1. 天津市第一中心医院放射科
    2.
    3. 同上
  • 收稿日期:2009-12-03 修回日期:2009-12-07 出版日期:2010-05-15 发布日期:2010-05-15
  • 通讯作者: 崔明惠

Susceptibility-weighted imaging for the clinic value of diffuse axonal injury

  • Received:2009-12-03 Revised:2009-12-07 Published:2010-05-15 Online:2010-05-15
  • Contact: cui ming hui

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摘要： [摘要] 目的: 探讨SWI序列对于DAI的诊断价值,并比较SWI与T2*序列对于诊断DAI合并出血的敏感性。方法: 对20例临床确诊DAI有颅内少量出血的患者进行T2*序列及SWI序列扫描。结果: 20例DAI的颅内微小出血，对病变显示、静脉血管显示的评分上SWI分别为2.8,2.8；T2*为2.0,2.3；T2为2.2,0；T1为1.7,0。SWI分别与T2*,T2,T1的评分结果比较，差异有统计学意义(P值<0．01)。所有病灶出血SWI序列均得到明确显示，磁敏感加权成像检测到一个平均76 ± 52的参差不齐低信号病灶，而在T2*加权成像则为21 ± 19。(P<0.01，配对t检验) 结论: SWI序列对检测DAI合并出血的敏感性明显高于T2*序列。 [关键词] 磁敏感加权成像；弥漫性轴索损伤；微出血；

关键词: 磁敏感加权成像, 弥漫性轴索损伤, 微出血

Abstract: 【Abstract】Objective: To study the diagnostic value of susceptibility weighted imaging(SWI)in the cerebral microhemorrhage with DAI,To compare the sensitivity to detect microhemorrhage between T2* and SWI sequence．Methods: Twenty cases with cerebral microhemorrhage of DAI underwent T2* and SWI sequence. Results: Twenty cases of microhemorrhage DAI，the lesions showed that the veins show ratings on SWI were 2.8,2.8；T2 * for the 2.0,2.3； T2 for 2.2,0； T1 as 1.7,0. SWI respectively with T2 *, T2, T1 rating results, the difference was statistically significant (P <0.01). All lesions bleeding SWI sequences were obtained clearly showed that the SWI to detect an average of 76 ± 52 of the mixed low signal intensity, while in T2 *-weighted imaging, compared with 21 ± 19. (P <0.01, paired t test)Concusion: SWI was superior to the conventional T2* for cerebral microhemorrhage with DAI. 【Key word】 susceptibility-weighted imaging, diffuse axonal injury, microhemorrhage

Key words: susceptibility-weighted imaging, diffuse axonal injury, microhemorrhage