| 赖炳佳,王智慧,黎继昕,钟镜联.3D-T2-FFE序列在腰骶丛神经成像中的应用[J].中国医学影像技术,2020,36(S1):12~15 |
| 3D-T2-FFE序列在腰骶丛神经成像中的应用 |
| Application of 3D-T2-FFE sequence in lumbosacral plexus |
| 投稿时间：2020-03-29 修订日期：2020-05-24 |
| DOI：10.13929/j.issn.1003-3289.2020.z1.003 |
| 中文关键词: 腰骶丛 腰椎 磁共振成像 |
| 英文关键词:lumbosacral plexus lumbar vertebrae magnetic resonance imaging |
| 基金项目:中山大学临床医学研究5010计划项目（2013004）。 |
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| 中文摘要: |
| 目的 探讨三维T2加权快速梯度回波（3D-T2-FFE）图像对显示腰骶丛神经的应用价值。方法 收集腰骶丛神经病变患者29例，行常规腰骶椎MRI后加扫3D-T2-FFE及MR选择性水激励脂肪抑制技术（MR-PROSET）序列成像。测量并计算2个序列图像的神经信噪比（SNR神经）、肌肉SNR（SNR肌肉）、对比噪声比（CNR神经/肌肉），比较2个序列图像对腰骶丛神经病变的诊断效能。结果 所有病例3D-T2-FFE图像CNR（0.21±0.08）高于MR-PROSET图像（0.11±0.04，P<0.01），SNR肌肉（66.99±24.62）低于MR-PROSET（108.92±42.28，P<0.01），SNR神经（150.34±14.98）与MR-PROSET图像（138.02±11.17）差异无统计学意义（P>0.05）；3D-T2-FFE图像显示骶丛、股神经、闭孔神经的评分 （2.32±0.13、1.63±0.60、1.84±0.38）均高于MR-PROSET图像（1.95±0.14、0.11±0.32、1.16±0.38，P均<0.05），而腰丛、腰骶干、坐骨神经的评分（2.95±0.05、1.79±0.42、1.84±0.09）与MR-PROSET图像差异均无统计学意义（2.79±0.42、1.63±0.50、1.74±0.10，P均>0.05）。结论 3D-T2-FFE序列图像可有效评估腰骶丛神经病变，为临床提供更客观、准确的信息。 |
| 英文摘要: |
| Objective To explore the value of three-dimensional T2-weighted fast field echo (3D-T2-FFE) sequence in displaying lumbosacral plexus. Methods Totally 29 patients with lumbosacral plexus neuropathy were collected. After routine lumbosacral MRI, 3D-T2-FFE sequence and MR principle of selective excitation technique (MR-PROSET) scanning were performed, respectively. SNR of nerve root, SNR of muscle, and CNR of nerve root/muscle values of 2 sequences were measured and calculated. Compared the diagnostic efficiency of 2 sequences to lumbosacral plexus neuropathy. Results In all patients, CNR of 3D-T2-FFE image (0.21±0.08) was higher than that of MR-PROSET image (0.11±0.04, P<0.05), SNR of muscle (66.99±24.62) was lower than that of MR-PROSET image (108.92±42.28, P<0.01), while there was no statistical difference in SNR of nerve root (150.34±14.98 vs. 138.02±11.17) between 2 kinds of images(P>0.05). 3D-T2-FFE sequence images showed that the scores of sacral plexus, femoral nerve and obturator nerve (2.32±0.13, 1.63±0.60, 1.84±0.38) were higher than those of MR-PROSET image (1.95±0.14, 0.11±0.32, 1.16±0.38, all P<0.01). While there was no statistical difference in lumbar plexus, lumbosacral trunk and sciatic nerve between 2 kinds of images (2.95±0.05 vs 2.79±0.42, 1.79±0.42 vs 1.63±0.50, 1.84±0.09 vs 1.74±0.10, all P>0.05). Conclusion 3D-T2-FFE sequence can effectively evaluate lumbosacral plexus neuropathy and provide more objective and accurate information for clinical practice. |
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