T2^*mapping定量评估新兵奔袭集训后胫股关节软骨变化  

T2^*mapping in quantitative evaluation on changes of tibiofemoral joint cartilages of new recruits after intensive running training

作　　者：张懿娜 何彬 张禹[2] 徐茂林 张茜[2] 朱友志[2] ZHANG Yina;HE Bin;ZHANG Yu;XU Maolin;ZHANG Qian;ZHU Youzhi(Department of Radiology,the Second Affiliated Hospital of Anhui Chinese Medical University,Hefei 230031,China;Department of Radiology,the 901st Hospital of the Joint Logistics Support Force of PLA,Hefei 230031,China;Outpatient Department of Military,the 901st Hospital of the Joint Logistics Support Force of PLA,Hefei 230031,China)

机构地区：[1]安徽中医药大学第二附属医院影像科,安徽合肥230031 [2]中国人民解放军联勤保障部队第901医院影像科,安徽合肥230031 [3]中国人民解放军联勤保障部队第901医院军人门诊部,安徽合肥230031

出　　处：《中国医学影像技术》2020年第7期1065-1069,共5页Chinese Journal of Medical Imaging Technology

基　　金：原南京军区联勤部科技创新面上项目(2014MS047)。

摘　　要：目的观察T2^*mapping定量评估新兵奔袭集训后胫股关节软骨早期变化的价值。方法对22名新入伍健康男兵于奔袭集训前后分别采集右侧膝关节MRI,将关节软骨分为股骨内侧髁(MFC)承重区与非承重区、股骨外侧髁(LFC)承重区与非承重区、胫骨内侧平台(MTP)、胫骨外侧平台(LTP)6个区域,并将各区域分为浅层及深层,比较集训前各区域浅层与深层软骨T2^*值、集训前后各区域软骨T2^*值差异,分析集训前后各区域软骨T2^*值的变化百分率。结果集训前胫股关节各区域软骨浅层T2^*值均高于深层(P均<0.05);集训后LFC承重区、MFC承重区浅层、LTP浅层、MTP软骨T2^*值均明显高于集训前(P均<0.05);集训前后各区域软骨T2^*值变化百分率差异有统计学意义(F=3.66,P<0.05)。结论T2^*mapping可无创定量评估新兵奔袭集训后胫股关节软骨早期变化。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.

关 键 词：膝关节 软骨 磁共振成像 

分 类 号：R684[医药卫生—骨科学] R445.2[医药卫生—外科学]