T2* mapping in quantitative evaluation on changes of tibiofemoral joint cartilages of new recruits after intensive running training
10.13929/j.issn.1003-3289.2020.07.031
- VernacularTitle: T2* mapping定量评估新兵奔袭集训后胫股关节软骨变化
- Author:
Yina ZHANG
1
Author Information
1. Department of Radiology, The Second Affiliated Hospital of Anhui Chinese Medical University
- Publication Type:Journal Article
- Keywords:
Cartilage;
Knee joint;
Magnetic resonance imaging
- From:
Chinese Journal of Medical Imaging Technology
2020;36(7):1065-1069
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the value of T2* mapping in quantitative evaluation on early changes of tibiofemoral joint cartilages of new recruits after intensive running training. Methods: Totally 22 male recruits underwent MRI of right knee joint before and after intensive running training, respectively. Tibiofemoral joint cartilages were divided into 6 regions, i.e. weight-bearing area and non-weight-bearing area of medial femoral condyle (MFC), weight-bearing area and non-weight-bearing area of lateral femoral condyle (LFC), medial tibial platform (MTP) and lateral tibial platform (LTP), and each area was further divided into shallow layer and deep layer. T2* values of shallow layer and deep layer of cartilage in each area before training, T2* values of cartilage in each area before and after training were measured and compared. Percentage changes of T2* value in each area before and after training were analyzed. Results: Before training, T2* values of shallow layer of cartilage in all areas of tibiofemoral joint were all higher than that of deep layer (all P<0.05). After training, T2* values of weight-bearing area of LFC, shallow layer of weight-bearing area of MFC, shallow layer of LTP and MTP were higher than that before training (all P<0.05). Statistical difference of percentage changes of T2* values of cartilage were found in all regions before and after training (F=3.66, P<0.05). Conclusion: T2* mapping can be used for noninvasive quantitative evaluation of early changes in new recruits' tibiofemoral joint cartilage after intensive running training.
