腰大肌及椎旁肌脂含量在退变性脊柱侧凸中的作用的影像学研究

发布时间：2018-05-12 05:48

本文选题：磁共振成像 + 水/脂分离　；参考：《临床放射学杂志》2017年07期

【摘要】：目的探讨腰大肌、椎旁肌脂含量在退变性脊柱侧凸(DLS)中的作用以及其与Cobb's角的相关性。方法搜集34例DLS及30例年龄匹配的健康体检者行L3/4水平腹部横断面3D-VIBE MRI水/脂分离成像,计算腰大肌、椎旁肌肌脂分数(MLF)。测定DLS患者Cobb's角。评价两位观察者测量MLF的一致性,分析组间MLF差异及Cobb's角与MLF的相关性。结果两次扫描期间测定MLF的变异系数为2.38%。观察者内或观察者间测量MLF值具有较好一致性,组内相关系数ICC均0.900。DLS组Cobb's角与腰大肌、椎旁肌MLF均存在一定正相关性(r=4.304~5.897)。DLS组腰大肌及椎旁肌凹侧MLF值分别较凸侧增高31.2%、19.7%,且DLS组腰大肌[(8.85±1.43)%]或椎旁肌MLF[(26.39±3.53)%]均值显著高于正常对照组[(5.64±1.06)%,(15.95±2.86)%](P值均0.05)。结论腰大肌、椎旁肌脂浸润是DLS的危险因素,脂质浸润程度与DLS侧凸程度有关。
[Abstract]:Objective to investigate the role of lipid content of psoas major and paravertebral muscles in degenerative scoliosis and its correlation with Cobb's angle. Methods 34 cases of DLS and 30 cases of age-matched healthy controls were examined with L3 / 4 horizontal abdominal cross-sectional 3D-VIBE MRI water / lipid seperation imaging. The fat fraction of psoas major muscle and paravertebral muscle were calculated. The Cobb's angle of DLS patients was measured. The consistency of MLF measurements between the two observers was evaluated, and the MLF differences between the two groups and the correlation between Cobb's angle and MLF were analyzed. Results the coefficient of variation for the determination of MLF during the two scans was 2.38. The intraobserver and inter-observer measurements of MLF were consistent. The correlation coefficient (ICC) between Cobb's angle and psoas major muscle in 0.900.DLS group was significantly higher than that in 0.900.DLS group. There was a positive correlation between the MLF of paravertebral muscle and that of paraspinal muscle. The MLF values of psoas major muscle and paraspinal muscle concave in DLS group were higher than those in protruding side, respectively. The mean value of MLF in psoas major muscle or paraspinal muscle MLF in DLS group was significantly higher than that in normal control group [5.64 卤1.06%, 15.95 卤2.86%] (P < 0.05), and was significantly higher than that in DLS group (26.39 卤3.53%). Conclusion Lipid infiltration of psoas major and paravertebral muscles is the risk factor of DLS, and the degree of lipid infiltration is related to the degree of DLS scoliosis.
【作者单位】：广西梧州市红十字会医院影像科;
【分类号】：R445.2;R682

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