《中国康复理论与实践》

《中国康复理论与实践》

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髋周异位骨化的MRI表现①

于卫永1,2，杨本涛3，王娜娜4，孙进1,2，陈振波1,2，蒋贵均1,2，张红霞1,2   

  1. 1.首都医科大学康复医学院，北京市100068；2.中国康复研究中心北京博爱医院影像科，北京市100068；3.首都医科大学附属北京同仁医院放射科，北京市100730；4.北京市海淀医院放射科，北京市100080。
  • 出版日期:2016-01-25 发布日期:2016-05-23

Findings of MRI in Perihip Heterotopic Ossification

YU Wei-yong1,2, YANG Ben-tao3, WANG Na-na4, SUN Jin1,2, CHEN Zhen-bo1,2, JIANG Gui-jun1,2, ZHANG Hong-xia1,2   

  1. 1. Capital Medical University School of Rehabilitation Medicine, Beijing 100068, China; 2. Department of Medical Imaging, Beijing Bo'ai Hospital, China Rehabilitation Research Centre, Beijing 100068, China; 3. Department of Medical Imaging, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China; 4. Department of Medical Imaging, Beijing Haidian Hospital, Beijing 100080, China
  • Published:2016-01-25 Online:2016-05-23

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摘要： 目的分析髋周异位骨化早、中及晚期的MRI表现，探讨随病程演变MRI信号的变化规律。方法回顾性分析2011年2 月~2013 年9 月44 例异位骨化患者的MRI，其中早期20 例28 个关节，中期18 例24 个关节，晚期6 例8 个关节。增强扫描早期9例11 个关节，中期6 例7 个关节，晚期3 例4 个关节。χ2趋势性检验评估随异位骨化成熟度的增加，MRI的信号变化。结果随着异位骨化成熟度的提高，T2WI信号强度逐渐减低(χ2=16.773, P<0.001)，T1WI脂肪样信号逐渐增多，增强扫描异位骨化强化程度逐渐减低(χ2=16.048, P=0.007)。结论髋周异位骨化各期MRI各具特点，在早期诊断方面具有良好应用前景。

关键词: 异位骨化, 髋, 磁共振成像

Abstract: Objective To investigate the MRI findings of perihip heterotopic ossification (HO) in the early, mid and late stages. Methods The MRI of 44 inpatients with HO from February, 2011 to September, 2013 were reviewed, in which 20 cases (28 joints) were in early stage, 18 cases (24 joints) in mid stage and 6 cases (8 joints) in late stage. For the enhanced T1WI, 9 cases (11 joints) were in early stage, 6 cases (7 joints) in mid stage, and 3 cases (4 joints) in late stage. The χ2 trend test was used to evaluate the MRI signal change with the HO maturity. Results With the maturity of hip HO, the signal intensity of T2WI reduced (χ2=16.773, P<0.001), fat signal on T1WI increased, the enhancement reduced (χ2=16.048, P=0.007). Conclusion The MRI findings of perihip HO are characteristic in MRI in all the stages. MRI is useful for the diagnosis of perihip HO, especially for the early HO.

Key words: heterotopic ossification, hip, magnetic resonance imaging