摘要
目的:总结髌骨软化症(CMP)的MRI表现,研究MRI对CMP的诊断作用。材料与方法:对97例拟诊CMP膝关节的MRI表现和关节镜检查所见进行对照研究。结果:CMP的MRI表现为:(1)髌软骨内尖刺状或斑片状低信号;(2)软骨局部隆起,其内信号强度减低;(3)软骨表面不光滑;(4)软骨变薄;(5)软骨缺损、骨质暴露。以关节镜为标准MRI诊断CMP的敏感性为90.7%,特异性为78.6%,准确性为85.6%。结论:MRI能显示CMP的病理变化;在病变晚期,与关节镜的诊断符合性好;在病变早期。
Purpose: To evaluate MR in the diagnosis of chondromalacia patellae (CMP). Materials and methods: MR findings and diagnostic accuracy of 97 clinically suspected CMP cases were evaluated and compared with arthroscopy, which was taken as a diagnostic standard in the study. Results: The MR findings of CMP were focal or diffuse hypointensity in deep and middle layers of the patellar cartilage, focal areas of swelling with decreased signal intensity, surface irregularity, thinning, areas of cartilage loss, and exposure to the subchondral bone. MRI revealed a sensitivity of 90.7 %, specificity of 78.6% and accuracy of 85.6%. Conclusion: MRI is a useful tool in the early detection and diagnosis of CMP as shown in our study, and agreed fairly well with arthroscopy.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
1997年第2期123-126,共4页
Chinese Journal of Radiology
关键词
骨软化症
髌骨
成像
NMR
Osteomalacia Patella Magnetic resonace imaging