摘要
目的应用Revolution CT物质分离技术探索腰椎椎旁肌内肌与脂含量随年龄的变化规律。方法回顾性分析125例接受Revolution CT腰椎能谱平扫的受试者,分别在肌-脂配对的基物质密度图上测量L1、2~L4、5椎间隙水平的竖脊肌、L2、3~L5/S1椎间隙水平的腰大肌以及多裂肌内的肌含量与脂含量,对上述数值进行统计学分析。结果中年组多裂肌L4、5、L5/S1水平脂含量显著高于青年组多裂肌同层面脂含量(P<0.05),肌含量显著低于青年组同层面肌含量(P<0.05),老年组多裂肌所有椎间隙水平脂含量均显著高于青年组与中年组多裂肌内脂含量(P<0.05),肌含量显著低于青年组及中年组同层面肌含量(P<0.05);中年组竖脊肌仅L4、5水平脂含量显著高于青年组竖脊肌同层面脂含量(P<0.05),肌含量显著低于青年组同层面肌含量(P<0.05),老年组竖脊肌所有椎间隙水平脂含量显著高于青年组与中年组多裂肌内脂含量(P<0.05),肌含量显著低于青年组及中年组同层面肌含量(P<0.05);腰大肌各椎间隙水平、各年龄组脂含量与肌含量无显著变化。结论腰椎椎旁多裂肌与竖脊肌随年龄增大而出现退行性变,而腰大肌随年龄增大不出现退行性变。
Objective To evaluate changes in muscle and fat contents oflumbar paraspinal muscles with aging by using Revolution CT material decomposition(MD)technique.Methods A retrospective analysis of 125 subjects who underwent Revolution CT gemstone spectral imaging non-enhancing scan for lumbar spine.The muscle and fat contents were measured for erector spinae muscle(ES)at each disc level from L1/2 to L4/5,psoas muscle(PS)and multifidus muscle(MS)from L2/3 to L5/S1on muscle-based MD images and fat-based MD images respectively,differences of muscle and fat contents at each disc level and ineach age group were statistically analyzed.Results In the middle group,fat content of MS was significantly higher than that of the young group at L4/5,L5/S1(P<0.05),while muscle content lower than that of the young group at L4/5,L5/S1(P<0.05).In the old group,fat content of MS was significantly higher than that of the young and middle groups at all levels(P<0.05),while muscle content was lower than that of the young and middle groups at all levels(P<0.05).In the middle group,fat content of ES was significantly higher than that of the young group at L4/5(P<0.05),while muscle content lower than that of the young group at L4/5(P<0.05).In the old group,fat content of ES was significantly higher than that of the young and middle groups at all levels(P<0.05),while muscle content lower than that of the young andmiddle groups at all levels(P<0.05)There was no significant age-dependent change in the fat and muscle contents of the PS muscle at each disc level.Conclusion The muscle degeneration with aging occurs in lumbar paraspinal multifidus muscle and erector muscle,but not in psoas muscle.
作者
高辉
张堃
黎芳丽
李平
邓惠婷
范春华
游天
何业文
颜路悠
钟泽亚
贺卓
黎建宇
张雅茜
GAO Hui;ZHANG Kun;LI Fangli(Department of Radiology,First Affiliated Hospital of Hunan University of Chinese Medicine,Changsha,Hunan Province 410007,P.R.China)
出处
《临床放射学杂志》
CSCD
北大核心
2020年第6期1153-1157,共5页
Journal of Clinical Radiology
基金
国家自然科学基金青年科学基金(编号:81603482)
中国博士后科学基金面上项目(编号:2017M622586)
湖南省自然科学基金资助项目(编号:2016JJ6115)
湖南中医药大学重点学科建设项目(编号:4901-020000200806)
关键词
双能量
物质分离
定量
腰椎
椎旁肌
Dual energy
Material decomposition
Quantification
Lumbar
Paraspinal muscles
