超柔线圈联合脊柱线圈在臂丛神经MRI扫描的应用价值
肖遥 揭平平 张刘璐 黄冰峰 尧麒通信作者

西南医科大学附属中医医院 磁共振室，四川泸州，646000；

摘要：目的：探讨超柔线圈联合脊柱线圈在臂丛神经磁共振成像（Magnetic Resonance Imaging，MRI）扫描中的应用价值。方法：分别采用超柔线圈联合脊柱线圈与头颈部线圈联合脊柱线圈对30例健康志愿者分别进行臂丛神经MRI扫描，得到实验组（超柔线圈联合脊柱线圈）与对照组（头颈部线圈联合脊柱线圈）图像。测量两组臂丛神经图像在3D-STIR序列中的信噪比（Signal-to-noise ratio，SNR）与对比噪声比（contrast-to-noise ratio，CNR）。由两名影像诊断医师对两组图像质量进行主观评价。2组线圈分别用联影专用水模进行3D-STIR序列扫描，采集水模每层SNR。结果：臂丛神经SNR和CNR测量，对照组与实验组比较，差异均有统计学意义（P＜0.05），实验组高于对照组。主观评价方面，对照组与实验组比较，差异有统计学意义（P＜0.05），实验组图像质量更优。水模测试中，2组线圈的SNR有统计学差异（P＜0.05），超柔线圈联合脊柱线圈组更高。结论：在臂丛神经MRI扫描中，使用超柔性线圈联合脊柱线圈获得的图像质量优于传统头颈部线圈联合脊柱线圈，可在臂丛神经MRI扫描中得到推广和应用。

关键词：臂丛神经；磁共振成像；线圈；信噪比；对比噪声比；图像质量

The value of ultraflexible coils combined with spinal coils in MRI scanning of the brachial plexus nerves

XIAO Yao,JIE Ping-ping,ZHANG Liu-lu,HUANG Bing-feng,YAO Qi*

Magnetic Resonance Room,The Affiliated Traditional Chinese Medicine Hospital,Southwest Medical University(Sichuan 646000,P.R.China)

Abstract：Objective To investigate the value of ultraflexible coils combined with spinal coils in magnetic resonance imaging scans of the brachial plexus.Methods Brachial plexus MRI scans were performed on 30 healthy volunteers using a super flexible coil combined with a spinal coil and a head and neck coil combined with a spinal coil, respectively, to obtain images of the experimental group (super flexible coil combined with a spinal coil) and the control group (head and neck coil combined with a spinal coil).Signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were measured for both sets of brachial plexus images in the 3D-STIR sequence.A subjective evaluation of the image quality of the two groups was performed by two diagnostic imaging physicians.The two sets of coils were scanned in a 3D-STIR sequence with water molds separately, and the signal-to-noise ratio (SNR) of each layer of the water molds was collected.Results Brachial plexus nerve SNR and CNR measurements were statistically significant (P＜0.05) when comparing the control group with the experimental group, and the experimental group was higher than the control group.In terms of subjective evaluation, the difference between the control group and the experimental group was statistically significant (P＜0.05), and the experimental group had better image quality.There was a statistically significant difference in SNR between the 2 groups of coils in the water-mode test (P＜0.05), and it was higher in the group of ultrasoft coils combined with spinal coils.Conclusion  In brachial plexus MRI scanning, the image quality obtained using the ultra-flexible coil combined with the spinal coil is superior to that of the conventional head and neck coil combined with the spinal coil, which can be promoted and applied in brachial plexus MRI scanning.

KeyWords：Brachial plexus; Magnetic resonance imaging; Coil; Signal-to-noise ratio; Contrast-to-noise ratio; Image quality

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