| 房星宇,李佳林,秦景春,朱博,张彬,韩巍,吕苇,张艺军,唐志全,张金萍.基于新型腰椎轴向负荷装置MRI诊断腰椎管狭窄症[J].中国医学影像技术,2023,39(1):85~89 |
| 基于新型腰椎轴向负荷装置MRI诊断腰椎管狭窄症 |
| MRI based on a novel lumbar axial loading device for diagnosing lumbar spinal stenosis |
| 投稿时间：2022-08-10 修订日期：2022-10-27 |
| DOI：10.13929/j.issn.1003-3289.2023.01.020 |
| 中文关键词: 椎管狭窄|腰椎|磁共振成像|轴向负荷 |
| 英文关键词:spinal stenosis|lumbar vertebrae|magnetic resonance imaging|axial loading |
| 基金项目:军队保健专项科研课题(18BJZ43)。 |
| 作者 | 单位 | E-mail | | 房星宇 | 中国人民解放军第三○五医院放射科, 北京 100017 | | | 李佳林 | 中国人民解放军第三○五医院检验科, 北京 100017 | | | 秦景春 | 中国人民解放军第三○五医院放射科, 北京 100017 | | | 朱博 | 中国人民解放军 61889部队门诊部, 北京 100031 | | | 张彬 | 中国人民解放军 61889部队门诊部, 北京 100031 | | | 韩巍 | 中国人民解放军 61889部队门诊部, 北京 100031 | | | 吕苇 | 中国人民解放军第三○五医院放射科, 北京 100017 | | | 张艺军 | 中国人民解放军第三○五医院放射科, 北京 100017 | | | 唐志全 | 中国人民解放军第三○五医院放射科, 北京 100017 | | | 张金萍 | 中国人民解放军第三○五医院医务部, 北京 100017 | 1838789511@qq.com |
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| 中文摘要: |
| 目的 观察基于新型腰椎轴向负荷装置轴向负荷MRI (alMRI)诊断腰椎管狭窄症(LSS)的价值。方法 对87例临床疑诊LSS患者依次采集传统MRI (cMRI)及基于新型轴向负荷装置的alMRI,对比2种图像中L3-4、L4-5及L5-S1椎间隙硬膜囊横截面积(DSCA)、椎管矢状径(SVCD)、椎间盘高度(DH)及黄韧带厚度(LFT)的差异,分析施加轴向负荷前后上述参数差值的相关性,统计椎管相对狭窄、绝对狭窄、DSCA明显缩小(缩小＞15 mm2)、椎间盘突出及膨出、黄韧带肥厚、椎管内滑膜囊肿及椎间孔狭窄椎间隙的数量。结果 cMRI与alMRI中,L3-4、L4-5及L5-S1的DSCA、SVCD、DH及FLT差异均有统计学意义(P均<0.01)。施加轴向负荷前后DSCA差值分别与SVCD、DH及LFT差值呈高度、高度及弱相关(rs=0.72、0.66、0.29,P均<0.01)。87例261个椎间隙中,cMRI显示椎管相对狭窄128个,椎管绝对狭窄5个,无DSCA明显缩小,椎间盘突出66个,椎间盘膨出145个,黄韧带肥厚39个,椎管内滑膜囊肿5个,椎间孔狭窄113个,alMRI分别显示为155、28、29、86、176、53、10及132个椎间隙;cMRI显示501个、alMRI显示669个椎间隙存在LSS相关异常指标,后者较前者增加33.53%(168/501)。结论 基于新型腰椎轴向负荷装置的alMRI有助于诊断LSS。 |
| 英文摘要: |
| Objective To investigate the value of axial loading MRI (alMRI) based on a novel lumbar spine axial loading device for diagnosing lumbar spinal stenosis (LSS). Methods Conventional MRI (cMRI) and alMRI based on a new lumbar spine axial loading device were acquired in 87 patients with suspected LSS. Dural sac cross-sectional area (DSCA), sagittal vertebral canal diameter (SVCD), ligamentum flavum thickness (LFT) and disc height (DH) at L3-4, L4-5, L5-S1 were compared between two kinds of images, and the correlations of the differences of the above parameters before and after axial loading were analyzed. The number of intervertebral spaces with relative stenosis, absolute stenosis, significant reduction in DSCA (reduction ＞15 mm2), disc herniation, disc bulge, ligamentum flavum hypertrophy, intraspinal synovial cysts and foraminal stenosis were counted. Results There were significant differences of DSCA, SVCD, DH and FLT at the intervertebral space of L3-4, L4-5 and L5-S1 between cMRI and alMRI (all P<0.01). The difference of DSCA before and after axial loading were strongly correlated with the difference of SVCD and DH, and weakly correlated with the difference of LFT, respectively (rs=0.72, 0.66, 0.29, all P<0.01). Among 261 intervertebral spaces in 87 cases, cMRI showed 128 relative spinal stenosis, 5 absolute spinal stenosis, no significantly reduced DSCA, as well as 66 disc herniation, 145 disc bulge, 39 ligamentum flavum hypertrophy, 5 intraspinal synovial cysts and 113 foraminal stenosis, while alMRI showed 155, 28, 29, 86, 176, 53, 10 and 132 intervertebral spaces, respectively. cMRI showed LSS related abnormal indicators in 501 intervertebral space, and alMRI increased to 669, with an increase of 33.53% (168/501). Conclusion alMRI based on lumbar axial loading device was helpful for diagnosing LSS. |
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