摘要
目的探讨T2-mapping MR成像对外伤性膝关节软骨早期损伤的应用价值。资料与方法对照组10名，病例组20例，运用T2-mapping成像分别测量对照组关节软骨的T：值和病例组相对应于半月板撕裂处关节软骨的T：值，并进行统计学分析。结果20例患者半月板撕裂中关节软骨表面T2值范围39．9—65．3InS，平均（52．54±7．63）ms，对照组关节软骨表面T2值范围37．6～43．8ms，平均（41．18±1．66）ms。病例组与对照组关节软骨表面T2差异有统计学意义（P〈0．01）。结论T2-mapping成像可以发现没有形态学改变的损伤性关节软骨组织成分的改变，对诊断外伤性膝关节软骨早期损伤有很高的应用价值。
Objective To explore the value of MR T2 mapping in early articular cartilage injury of knee. Materials and Methods 30 cases were divided into 2 groups ; case group （ n = 20） with meniscus tear and control group （ n = 10）, T2 value were measured respectively in T2 mapping imaging, T2 value of case group were measured in articular cartilage corre- sponding meniscus tear. Statistical differences were analyzed. Results T2 value of surface of articular cartilage were 39.9± 65.3 ms in case group, T2 value of surface of articular cartilage were 37.6 ± 43.8 ms in control group. There was signifi- cant difference in T2 value between case group and control group. Conclusion T2-mapping imaging can reflect component abnormality in early articular cartilage injury without morphology change, and has a high value in diagnosis of early articular cartilage injury of knee.
出处
《临床放射学杂志》
CSCD
北大核心
2008年第9期1247-1250,共4页
Journal of Clinical Radiology
关键词
关节软骨
骨关节炎
磁共振成像
Articular cartilage Osteoarthritis Magnetic resonance imaging
