应用磁共振T2-mapping成像评价非专业马拉松运动员膝关节软骨改变

王平; 黄刚; 张文文; 周星; 赵莲萍; 舍伟

中国临床医学影像杂志 ›› 2014, Vol. 25 ›› Issue (12) : 877-881.

论著

应用磁共振T2-mapping成像评价非专业马拉松运动员膝关节软骨改变

王平，黄刚，张文文，周星，赵莲萍，舍伟

作者信息 +

The application of MRI T2-mapping in the knee cartilage of the non-professional athletes after marathon

WANG Ping, HUANG Gang, ZHANG Wen-wen, ZHOU Xing, ZHAO Lian-ping, SHE Wei

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文章历史 +

摘要

目的：应用磁共振T2-mapping成像评价马拉松普通参与者膝关节软骨厚度及软骨T2值的变化。材料与方法：对13名参加马拉松赛的健康志愿者的13个膝关节在赛前及赛后行膝关节3.0T磁共振成像，年龄24~40岁，平均（32±6.3）岁，应用T2-mapping成像观察和测量股骨内外髁与胫骨平台负重区及非负重区软骨浅、深层的平均T2值，同时测量各区域软骨厚度，并进行统计学分析。结果：磁共振常规序列成像示膝关节在赛前与赛后无明显变化。T2-mapping成像示关节软骨浅层T2值在赛前及赛后均高于深层，差异有统计学意义（P<0.05）；赛后浅层软骨T2值低于赛前，差异有统计学意义（P<0.05）；关节软骨同一区域比较，负重区软骨厚度赛后低于赛前。结论：磁共振T2-mapping成像可以量化评估关节软骨内组织成分的变化，马拉松赛前及赛后关节软骨浅层T2值均高于深层，马拉松赛后负重区软骨厚度及浅层软骨T2值减低。

Abstract

Objective: To evaluate the value of T2-mapping imaging in the knee articular cartilage of the non-professional athletes after marathon. Methods: Cartilage thickness and MRI T2 values of 13 marathon runners(age range: 24~40 years, mean (32±6.3) years) were compared before and after the marathon. A 3.0T scanner was used to calculate thickness and T2 values of the weight-bearing and non-weight-bearing area of the femoral and tibial cartilage. Statistical difference was analyzed． Results: There was no significant difference of conventional magnetic resonance imaging before and after the marathon. MRI T2 values of superficial cartilage were higher than deeper layer both before and after the marathon. After marathon running MRI T2 values decreased in superficial cartilage of the weight-bearing area of the femoral and tibial along with a decrease of cartilage thickness. Conclusion: MRI T2-mapping imaging provides quantitative assessment of articular cartilage correlated with the biochemical changes in cartilage. MRI T2 value of superficial cartilage is higher than deeper layer. After marathon running MRI T2 values decrease in superficial cartilage from the weight-bearing area of the femoral and tibial along with a decrease of cartilage thickness.

导出引用

王平;黄刚;张文文;周星;赵莲萍;舍伟. 应用磁共振T2-mapping成像评价非专业马拉松运动员膝关节软骨改变[J]. 中国临床医学影像杂志. 2014, 25(12): 877-881

WANG Ping;HUANG Gang;ZHANG Wen-wen;ZHOU Xing;ZHAO Lian-ping;SHE Wei. The application of MRI T2-mapping in the knee cartilage of the non-professional athletes after marathon[J]. Journal of China Clinic Medical Imaging. 2014, 25(12): 877-881

中图分类号： Ｒ322.71 Ｒ322.72 Ｒ445.2