成人股骨头缺血性坏死比较影像学分析  

Imaging For Avascular Necrosis of The Femoral Head

作　　者：尤壮志[1] 于静红[1] 黄恕芳[1] 

机构地区：[1]内蒙古医学院第二附属医院影像科,内蒙古呼和浩特010030

出　　处：《内蒙古医学杂志》2006年第11期1006-1007,共2页Inner Mongolia Medical Journal

摘　　要：目的:探讨成人股骨头缺血性坏死的X线、CT、MRI表现和病理基础。方法:搜集经临床证实的30例成人股骨头缺血性坏死的X线、CT及MRI影像资料进行回顾性分析。结果:30例病患共累计47个病变股骨头,X线检查漏诊了16个病变股骨头,CT检查漏诊了5个病变股骨头,MR检查诊断了经X线、CT检查后漏诊的5例病变股骨头。结论:骨髓水肿是成人股骨头缺血性坏死的早期影像学表现,MRI“线样征”是诊断早期缺血坏死的特征性表现,MR是目前诊断早期成人股骨头缺血性坏死最敏感、最有效的影像学检查方法。Objective：To discuss the manifestations of X - rays, CT and MRI and pathology of avascular necrosis of the femoral head. Methods： The imaging data including X - rays, CT and MRI in 30 adults with avascular necrosis of the femoral head were collected and retrospectively analyzed. Results： Of 47 necrotic femoral head in 30 cases, 16 were missed diagnosis by X - ray examination, 5 by CT, and 5 were diagnosed by MRI but missed diagnosis by X- rays and CT. Conclusion： The edema of bone marrow is the early imaging signs of avascular necrosis of the femoral head. The string sign is the characteristic imaging of MRI in diagnosis of initial avascular necrosis. MRI is sensitive and effective in diagnosing adult avascular necrosis of the femoral head in the early stage.

关 键 词：成人股骨头缺血性坏死 磁共振成像 线样征 骨髓水肿 

分 类 号：R814.42[医药卫生—影像医学与核医学]