| 引用本文： |
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张谨,潘杰,戴工华,等.腰椎轴向加压动力位核磁扫描的初步应用研究[J].同济大学学报（医学版）,2023,44(1):62-69. [点击复制]
- ZHANG Jin,PAN Jie,DAI Gonghua,et al.Application of axial loaded positional MRI scan in lumbar spine[J].Journal of Tongji University(Medical Science),2023,44(1):62-69. [点击复制]
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| 摘要: |
| 目的通过对比健康成人腰椎的轴向加压动力位磁共振（axial loaded positional MRI, AL-P MRI）与传统MRI的影像结果，探讨其在腰椎管狭窄诊疗中的初步应用价值。方法本实验入组6名健康受试者，予以AL-P MRI检查，记录受试者下腰椎3个节段（L3/L4、L4/5和L5/S1）在非轴向加压中立位、非轴向加压仰伸位、非轴向加压屈曲位、轴向加压中立位、轴向加压仰伸位和轴向加压屈曲位体位下的矢状位椎管前后径（anteroposterior diameter, APD）、矢状面椎间孔面积（foraminal area, FA）、横断位硬膜囊面积（dural sac cross-sectional area, DCSA）、终板夹角（endplate Angle, EA）及活动度（range of motion, ROM）的数值，并进行相应分析。结果所有受试者的APD、FA和DCSA值在非轴向加压中立位下均低于轴向加压屈曲位（P<0.05），而高于加压伸展位（P<0.05）。L3/4,L4/5,L5/S1三个节段的EA，无论是否进行轴向负荷加载，屈曲位下值均小于仰伸位值（P<0.05）。计算三个节段ROM发现，无论是否进行轴向加压，L4/5的ROM均高于L3/4和L5/S1（P<0.05）。总体而言，非轴向加压下ROM值，低于轴向加压下ROM值（P<0.05）。所有受试者的EA，无论是否加载轴向负荷，均与相应的APD、FA和DCSA具有强相关性（r>0.6,P<0.05）。结论相较于传统MRI，AL-P MRI可能更有助于腰椎疾病的诊断。 |
| 关键词: 腰椎 轴向加压 动力位磁共振检查 |
| DOI：10.12289/j.issn.1008-0392.22315 |
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| 投稿时间：2022-07-30 |
| 录用日期： |
| 基金项目:上海市卫健委临床专项课题（201940283）；江西省卫生健康委科技计划（SKJP220218218） |
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| Application of axial loaded positional MRI scan in lumbar spine |
| ZHANG Jin,PAN Jie,DAI Gonghua,YANG Lei,ZHANG Zhongmin,LI Xuesong,SHEN Bin |
| (Department of Bone and Soft Tissue, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300202, China;Department of Spine Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200120, China;Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000， Sichuan Province, China) |
| Abstract: |
| ObjectiveTo investigate the application of axial loaded positional MRI(AL-P MRI) in lumbar spine. MethodsSix healthy adults were recruited for AL-P MRI examination in this study. The anteroposterior diameter(APD)， foraminal area(FA)， dural sac cross-sectional area(DCSA) and endplate angle(EA) values of 3 segments(L3/4, L4/5, L5/S1) in non-axial loaded neutral position, non-axial loaded flexion position, non-axial loaded extension position, axial loaded neutral position, axial loaded flexion position and axial loaded extension position were recorded and analyzed. ResultsAPD, FA and DCSA values in non-axial loaded neutral position were lower than those in the axial loaded extension position(P<0.05) and higher than those in the axial loaded flexion position(P<0.05) in all subjects. The EA of three segments, L3/4, L4/5, L5/S1, were all lower in the flexion position than those in the extension position with or without axial loading(P<0.05). The ROM in L4/5 was higher than that in L3/4 and L5/S1 with or without axial loading(P<0.05). Overall, the ROM values under non-axial loading were lower than those under axial loading(P<0.05). EA in all subjects, with or without axial loading, was closely correlated with the corresponding APD, FA and DCSA (r>0.6,P<0.05). ConclusionCompared to conventional MRI, AL-P MRI may be better in the diagnosis of lumbar spine disorders. |
| Key words: lumbar spinal axial loaded positional MRI |
