基于T2^(*)mapping的业余马拉松运动员足踝部关节软骨损伤及其影响因素分析  

Quantitative assessment of articular cartilage in the foot and ankle of amateur marathon runners by T2^(*)mapping and analysis of its related influencing factors

作　　者：高雅丽 兰晓川 王舒 宋凌恒 陈伟 GAO Yali;LAN Xiaochuan;WANG Shu;SONG Lingheng;CHEN Wei(Department of Radiology,the Southwest Hospital of AMU,Chongqing 400037,China;Department of Radiology,958th Army Hospital,Chongqing 400020,China)

机构地区：[1]陆军军医大学第一附属医院放射科,重庆400037 [2]陆军第九五八医院放射诊断科,重庆400020

出　　处：《磁共振成像》2025年第2期94-99,共6页Chinese Journal of Magnetic Resonance Imaging

摘　　要：目的基于T2^(*)mapping定量分析业余马拉松运动员足踝部关节软骨的T2^(*)值,并分析其与性别、年龄、身体质量指数(body mass index,BMI)、跑龄、跑量之间的相关性。材料与方法于2023年7月份至2023年9月份招募重庆市长跑运动爱好者48名,其中跑量<300 km/月的36例(中低跑量组),跑量≥300 km/月的12例(高跑量组)。所有受试者均进行单侧无症状踝关节的MRI扫描,扫描序列包括T2^(*)mapping多回波自旋回波(spin echo,SE)序列矢状位、质子密度加权成像脂肪抑制(proton density-weighted imaging fat-saturated,PDWI-FS)序列矢状位、冠状位、横轴位以及T1加权脂肪抑制成像(T1-weighted imaging fat-saturated,T1WI-FS)序列横轴位。沿关节软骨轮廓边缘勾画距骨穹窿、跟骰关节跟骨面、骰骨面及后距下关节跟骨面、距骨面软骨作为感兴趣区(region of interest,ROI),获得相应的T2^(*)值。采用线性回归分析软骨T2^(*)值与年龄、BMI、跑龄的相关性,采用独立样本t检验分析不同跑量及不同性别间的软骨T2^(*)值差异。结果(1)距骨穹窿、跟骰关节跟骨面及骰骨面、后距下关节跟骨面及距骨面软骨T2^(*)值在性别上的差异均具有统计学意义(P=0.001、P<0.001、P=0.002、P=0.008、P=0.004);(2)高跑量组的距骨穹窿、后距下关节跟骨面软骨T2^(*)值高于中低跑量组(P=0.014、0.023),不同跑量的跟骰关节跟骨面及骰骨面、后距下关节距骨面软骨T2^(*)值的差异均无统计学意义(P=0.987、0.072、0.724);(3)距骨穹窿、跟骰关节跟骨面及骰骨面、后距下关节跟骨面、距骨面软骨T2^(*)值均与BMI呈正相关(r=0.376、0.384、0.300、0.422、0.455,P=0.005、0.004、0.019、0.001、0.001)。结论在业余马拉松运动员这一跑步群体中,与中低跑量相比,高跑量更有可能导致距骨穹窿、后距下关节跟骨面软骨损伤;而与较低的BMI相比,高BMI增加了距骨穹窿、跟骰关节跟骨面、骰骨面及后距下�Objective:Quantitative analysis of T2^(*) values of articular cartilage in the foot and ankle of amateur marathon runners based on T2^(*) mapping,and analysis of their relationship with gender,age,body mass index(BMI),running age,and running volume.Materials and Methods:From July 2023 to September 2023,48 long-distance runners in Chongqing were recruited according to the inclusion and exclusion criteria of this study,including 36 cases with running distance volume<300 km/month(low to medium running volume group)and 12 cases with running distance volume≥300 km/month(high running volume group).The unilateral asymptomatic ankle joints of all subjects were scanned using MRI,and the scanning sequences included T2^(*) mapping multi-echo spine cho(SE)sequence sagittal,proton density-weighted imaging fat-saturated(PDWI-FS)sequence sagittal,coronal,transverse axial,and T1-weighted imaging fat-saturated(T1WI-FS)sequence transverse axial.The cartilage of the talar dome,the calcaneal surfaces and cuboid surfaces of the calcaneocuboid joint,the calcaneal surfaces and talar surfaces of the posterior subtalar joint were outlined as regions of interest(ROI)along the edges of the articular cartilage contour,and the corresponding T2^(*) values were obtained.Analyze the relationship between the T2^(*) values of cartilage and age,BMI,running age with multiple linear regression,and running volume,gender with independent samples t-test.Results:(1)The differences of cartilage T2^(*) values of the talar dome,the calcaneal surfaces and cuboid surfaces of the calcaneocuboid joint,the calcaneal surfaces and talar surfaces of the posterior subtalar joint were statistically significant in gender(P=0.001,P<0.001,P=0.002,P=0.008,P=0.004).(2)The T2^(*) values of cartilage of the talar dome and calcaneal surface of posterior subtalar joint of high running group were higher than those of low to medium running group(P=0.014,0.023),the differences in T2^(*) values of cartilage of the calcaneal surface and cuboid surface of the calcaneocuboid join

关 键 词：业余马拉松 跑步 软骨 磁共振成像 T2^(*)mapping 

分 类 号：R445.2[医药卫生—影像医学与核医学] R684.3[医药卫生—诊断学]