Study on the correlation between fat content of supraspinatus muscle by spectral CT and tendon tear severity of supraspinatus as well as shoulder joint function
10.3969/j.issn.1002-1671.2024.11.020
- VernacularTitle:能谱CT冈上肌脂肪含量与冈上肌肌腱损伤程度及肩关节功能相关性研究
- Author:
Xiaona ZHOU
1
;
Suping CHEN
;
Jian XIANG
;
Yinqi LIU
;
Jianyu LI
;
Tian YOU
;
Kun ZHANG
Author Information
1. 湖南中医药大学第一中医临床学院,湖南 长沙 410208
- Keywords:
supraspinatus tendon tear;
supraspinatus muscle;
spectral computed tomography;
fatty infiltration
- From:
Journal of Practical Radiology
2024;40(11):1843-1847
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the relationship between the fat content of supraspinatus muscle measured by spectral CT fat-muscle material decomposition technology and the tendon tear severity(TTS)of supraspinatus,as well as shoulder joint function.Methods A total of 108 patients were prospectively selected to undergo routine MRI and spectral CT imaging of the shoulder joints.The patients were divided into normal,degenerative,partial tear,and full-thickness tear groups based on MRI findings.A fat-muscle material decomposition image was generated through spectral analysis to measure the fat content of supraspinatus muscle.The differences in fat content of supraspinatus muscle between the groups were compared,and correlation analyses were performed between the fat content of supraspinatus muscle and the clinical baseline characteristics,symptom duration,and Constant-Murley scores in patients with supraspinatus tendon tears.Results Comparison of supraspinatus muscle fat content among the four groups:the full-thickness tear group＞the partial tear group＞the degenerative group＞the normal group(P＜0.05).There was a strong positive cor-relation between the supraspinatus muscle fat content and the supraspinatus TTS(r=0.654,P＜0.05).Among patients with partial and full-thickness tears of the supraspinatus tendon,there was a moderate positive correlation between supraspinatus muscle fat content and patient age(r=0.393,P＜0.05),a weak positive correlation with gender(r=0.199,P＜0.05),with higher fat content observed in females compared to males,no significant correlation with symptom duration(r=0.037,P＞0.05),a moderate positive correla-tion with body mass index(BMI)(r=0.463,P＜0.05),and a moderate negative correlation with Constant-Murley score(r=-0.316,P＜0.05).Conclusion In patients with rotator cuff tears,the quantitative fat content of supraspinatus muscle based on spectral CT fat-muscle material decomposition technology is strongly positively correlated with rotator cuff injury degree,and is also correlated with patient age,gender,BMI,and the strength of the shoulder joint muscles and range of the motion.
