摘要
目的:探讨骨挫伤的MRI特征及诊断价值。方法:回顾性分析了70例骨挫伤病人的临床资料和MR图像,对骨挫伤到MRI检查时间,骨挫伤的序列检出敏感性及病变部位分布特点进行了观测,对1例膝关节骨挫伤行影像学随访,1例骨挫伤的病理资料进行了分析。结果:1)多数骨挫伤MRI检查在两周内完成,少数病人时间超过1年;2)检出骨挫伤敏感的MRI序列为STIR及T1W(I100%及95.7%);3)膝关节是骨挫伤的好发部位,病灶主要分布于骨边缘区(69.8%),在脊柱主要分布于椎体上缘终板下(74.1%);4)骨挫伤影像随访提示病变区出现线状骨质修复,骨髓水肿吸收;5)骨挫伤病理为骨小梁显微骨折,骨髓水肿、出血和脂肪损伤。结论:MRI对骨挫伤非常敏感,能清楚显示骨挫伤的部位和病程。骨挫伤是骨小梁显微骨折,早期诊断可使病人得到早期和正确治疗,MRI检查是重要的诊断方法。
Objective：To investigate MR imaging features and diagnostic value of bone contusion. Methods：70 consecutive patients with bone contusion were prospectively analyzed, the time between bone injury and MR examination, sensitivity of MR series to detecting lesions of contusion and distribution of lesions were evaluated; a knee contusion follow-up images and a bone contusion pathologic data was analyzed. Results： MR examination of bone contusion were mostly less than two weeks, but a few patients were longer than one year;STIR,T1WI were more sensitive lesion detection series in bone contusion （100% and 95.7%）.Bone contusion mostly occur at knee, and lesions mainly distributed in the margin area of articular （69.8%）, in superior portion of vertebral body（74.1%）. Bone contusion following-up showed a line-like hyperostosis and osteosclerosis in contusion area. Histological manifestations of bone contusion were local trabecular micro fractures, edema, hemorrhage and injury of fat tissue. Conclusion：MR imaging is a sensitive method of diagnosis in bone contusion, could display position and course of bone contusion. Bone contusion is local trabecular microfractures, early diagnosis can allow patients early treatment, the important diagnostic tool is MRI.
出处
《重庆医科大学学报》
CAS
CSCD
2007年第4期402-406,共5页
Journal of Chongqing Medical University
作者简介
吕发金（1968-），男，副教授，博士生，主要研究方向：神经系统及骨创伤影像诊断学。
