Predictive value of T2*-mapping in early damage of medial meniscus posterior root in asymptomatic knee osteoarthritis
10.3969/j.issn.1002-1671.2024.12.020
- VernacularTitle:T2*-mapping在无症状膝骨关节炎内侧半月板后根部早期损伤中的预测价值
- Author:
Yutao YAN
1
;
Peng WANG
;
Haiyu ZHANG
;
Peili PENG
;
Yuebin WANG
;
Shuo ZHANG
;
Liman LI
Author Information
1. 联勤保障部队第九八八医院放射科,河南 郑州 450042
- Keywords:
medial meniscus posterior root;
early damage;
quantitative imaging
- From:
Journal of Practical Radiology
2024;40(12):2021-2024
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the application of MRI T2*-mapping in the early damage of the medial meniscus posterior root(MMPR)in asymptomatic knee osteoarthritis(OA).Methods Eighty subjects were included in this study,35 were diagnosed with knee OA(OA group)and clinically confirmed MMPR injury,35 were asymptomatic OA group with gender and age matching,and 10 were normal control group.All subjects were examined by T2*-mapping.The T2*-mapping values at the bone attachment,middle part,and 1 cm bone attachment point of MMPR were measured in each group,and the consistency of T2*-mapping values between the knee OA group and the asymptomatic OA group was verified by the Kappa test.The T2*-mapping values of each measurement area were statistically compared,and the clinical diagnosis accuracy and other indicators of the T2*-mapping parameter values were statistically analyzed.Results The Kappa value of the knee OA group and the asymptomatic OA group analyzed by T2*-mapping was 0.787(P＜0.01),Kappa statistical analysis showed that there was a good consistency between the two diagnostic results.The T2*-mapping values of the knee OA group,asymptomatic OA group,and normal control group at the bone attachment,middle part,and 1 cm bone attachment point of MMPR showed that the T2*-mapping values of each measurement area in the knee OA group and asymptomatic OA group were higher than those in the normal control group(P＜0.05).The T2*-mapping values of the knee OA group were higher than those of the asymptomatic OA group,and the difference was statistically significant(P＜0.05).While the T2*-mapping values were used in the asymptomatic OA group to diagnose the early damage of MMPR,the sensitivity,specificity,accuracy,negative predictive value,and positive predictive value were 89.6％,88.9％,91.1％,87.5％,and 88.3％respectively.Conclusion T2*-mapping value may be used as a reference index to predict the progression of knee OA,and has a certain value in the early diagnosis of asymptomatic OA MMPR injury.
