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。
Objective To explore the value of three-dimensional T2-weighted fast field echo(3 D-T2-FFE)sequence in displaying lumbosacral plexus.Methods Totally 29 patients with lumbosacral plexus neuropathy were collected.After routine lumbosacral MRI,3 D-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 3 D-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).3 D-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 3 D-T2-FFE sequence can effectively evaluate lumbosacral plexus neuropathy and provide more objective and accurate information for clinical practice.
作者
赖炳佳
王智慧
黎继昕
钟镜联
LAI Bingjia;WANG Zhihui;LI Jixin;ZHONG Jinglian(Department of Radiology,Sun Yat-sen Memorial Hospital,Sun Yat-sen University,Guangzhou510120,China)
出处
《中国医学影像技术》
CSCD
北大核心
2020年第S01期12-15,共4页
Chinese Journal of Medical Imaging Technology
基金
中山大学临床医学研究5010计划项目(2013004)
关键词
腰骶丛
腰椎
磁共振成像
lumbosacral plexus
lumbar vertebrae
magnetic resonance imaging
