优化MRI T_(2)-3D-SPACE的序列成像在外周神经扫描中的应用  

Application of optimized MRI T_(2)-3D-SPACE sequence imaging in peripheral nerve scanning

作　　者：李伟峰[1] 梁长松[1] 陈泽文[1] 陈钦龙 马超进[1] LI Wei-feng;LIANG Chang-song;CHEN Ze-wen;CHEN Qin-long;MA Chao-jin(Department of Medical Imaging,People's Hospital of Xinhui District,Jiangmen 529100,Guangdong,CHINA)

机构地区：[1]江门市新会区人民医院医学影像科,广东江门529100

出　　处：《海南医学》2021年第13期1709-1712,共4页Hainan Medical Journal

基　　金：广东省江门市卫生健康局科学技术研究项目(编号:20A105)。

摘　　要：目的研究优化核磁共振成像(MRI)T_(2)-三维快速自旋回波序列(T_(2)-3D-SPACE)的序列成像在外周神经扫描中的应用效果。方法选择江门市新会区人民医院2019年7月至2020年12月收治的42例单侧臂丛神经病变患者,按照随机数表法均分A组、B组和C组,各14例,分别接受T_(2)-3D-SPACE常规平扫、增强扫描、优化T_(2)-3D-SPACE序列扫描。对比三种方式成像的图像质量评分、图像背景抑制评分、神经干对比噪声比(CNR)及信噪比(SNR),以及对臂丛神经锁骨上下段的显示情况。结果A组患者的图像质量评分为(3.45±0.42)分,明显低于B组的(3.78±0.31)分和C组的(3.81±0.29)分,差异有统计学意义(P<0.05);A组患者的图像背景抑制评分为(3.01±0.33)分,明显高于B组的(2.27±0.21)分和C组的(2.61±0.28)分,而C组的图像背景抑制评分又明显高于B组,差异均有统计学意义(P<0.05);A组患者的SNR值及CNR值分别为(14.88±1.22)、(18.13±1.68),明显低于B组的(16.75±1.67)、(19.44±1.39)和C组的(17.29±1.41)、(19.05±1.53),差异均有统计学意义(P<0.05);A组患者的锁骨上段和下段显示率分别为42.86%、35.71%,明显低于B组的92.86%、85.71%和C组的85.71%及78.57%,差异均有统计学意义(P<0.05)。结论优化MRI T_(2)-3D-SPACE的序列成像与常规增强扫描T_(2)-3D-SPACE均可清晰显示臂丛神经,但优化MRI T_(2)-3D-SPACE序列无需注射对比剂,更适用于对比剂禁忌证患者。Objective To study and optimize the application effect of T_(2)-3D-SPACE sequence imaging of mag-netic resonance imaging(MRI)in peripheral nerve scanning.Methods A total of 42 patients with unilateral brachial plexus neuropathy,who admitted to Xinhui District People's Hospital of Jiangmen City from July 2019 to December 2020 were divided into group A,group B and group C according to random number table method,with 14 patients in each group.The group A,group B and group C received T_(2)-3D-SPACE routine plain scan,enhanced scan and opti-mized T_(2)-3D-SPACE sequence scan respectively.The image quality score,image background suppression score,nerve trunk contrast noise ratio(CNR)and signal-to-noise ratio(SNR),and the display of the upper and lower clavi-cles of brachial plexus of the three imaging were compared.Results The image quality score of group A(3.45±0.42)was significantly lower than that of group B(3.78±0.31)and group C(3.81±0.29),and the differences were statistical-ly significant(P<0.05);the image background inhibition score in group A(3.01±0.33)was significantly higher than that in group B(2.27±0.21)and group C(2.61±0.28),while the background inhibition score in group C were significant-ly higher than that in group B,and the differences were statistically significant(all P<0.05);the SNR and CNR of group A were 14.88±1.22 and 18.13±1.68,which were significantly lower than corresponding 16.75±1.67 and 19.44±1.39 of group B and 17.29±1.41 and 19.05±1.53 of group C,and the differences were statistically significant(all P<0.05);the display rates of the upper and lower segments of clavicle in group A were 42.86%and 35.71%,which were signifi-cantly lower than corresponding 92.86%and 85.71%in group B and 85.71%and 78.57%in group C,and the differ-ences were statistically significant(all P<0.05).Conclusion Optimized MRI T_(2)-3D-SPACE sequence imaging and conventional enhanced scanning T_(2)-3D-SPACE can clearly display brachial plexus,but optimized MRI T_(2)-3D-SPACE sequence does not need to inject

关 键 词：臂丛神经 核磁共振成像 T_(2)-三维快速自旋回波序列 图像质量 对比噪声比 信噪比 

分 类 号：R445[医药卫生—影像医学与核医学]