| 高立,梁碧玲,张赟,叶瑞心,钟镜联,娄明武.弥散加权神经成像术诊断臂丛神经病变[J].中国医学影像技术,2009,25(11):2092~2095 |
| 弥散加权神经成像术诊断臂丛神经病变 |
| Diffusion weighted magnetic resonance neurography in brachial plexus neuropathy |
| 投稿时间：2009-03-31 修订日期：2009-06-04 |
| DOI： |
| 中文关键词: 臂丛神经 磁共振成像 弥散加权成像 磁共振神经成像术 |
| 英文关键词:Brachial plexus Magnetic resonance imaging Diffusion-weighted imaging Magnetic resonance neurography |
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| 中文摘要: |
| 目的 探讨弥散加权神经成像术(DW-MRN)对臂丛神经病变诊断的准确性及定量诊断价值。 方法 对52例受检者行常规MR序列及重T2脂肪抑制(T2WI/SPIR)和DW-MRN。其中20例臂丛神经病变患者按病理类型分为损伤组、炎症组和肿瘤组。 结果 与T2WI/SPIR比较,DW-MRN臂丛C7神经节的对比噪声比和病灶对比噪声比均较高(t=2.19、3.91,P均<0.05),对臂丛神经病变诊断的灵敏度亦较高(χ2=4.44,P<0.05)。臂丛神经病变的ADC值高于正常神经节和中干(t=4.80、5.69,P均＜0.05);损伤组和肿瘤组的ADC值高于炎症组(F=6.99、5.28,P均＜0.05)。 结论 DW-MRN对臂丛神经及其病变有良好的显示能力,ADC值可作为臂丛神经病变的定量诊断的参考指标。 |
| 英文摘要: |
| Objective To evaluate the accuracy and quantitative diagnostic value of diffusion weighted MR neurography (DW-MRN) in brachial plexus neuropathy. Methods Twenty patients with brachial plexus diseases and 32 controls underwent cervix MR scan included heavy-T2WI with fat-suppress (T2WI/SPIR) and DW-MRN. The patients were divided into 3 groups,i.e.injury group, inflammation group and tumor group. Results Contrast-to-noise ratio (CNR) of C7 and the lesions with DW-MRN were higher than those with T2WI/SPIR (t=2.19, 3.91, both P<0.05). The diagnostic sensitivity of DW-MRN in brachial plexus neuropathy was higher than that of T2WI/SPIR (χ2=4.44, P<0.05). The ADC value of brachial plexus focus was higher than that of normal ganglion and middle trunk (t=4.80, 5.69, both P<0.05). The ADC value of injury group and tumor group was higher than that of inflammation group (F=6.99, 5.28, both P<0.05). Conclusion DW-MRN has great value in detecting brachial plexus neuropathy, and the ADC value can be used as index of quantitative diagnosis. |
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