骨梗死的影像学诊断  

Imaging Diagnosis of Bone Infarction

作　　者：卢超[1] 周旭峰[1] 刘晓萍[1] 白喜恩[1] 

机构地区：[1]河南省洛阳市中心医院磁共振室,河南洛阳471009

出　　处：《中国现代医生》2010年第23期85-86,共2页China Modern Doctor

摘　　要：目的探讨骨梗死的影像学诊断要点。方法对16例经临床及病理证实的骨梗死患者行X线、CT及MRI检查,分析其影像学表现,并将骨梗死分为早期和中晚期,总结其影像学特征,观察其病理改变。结果早期骨梗死,X线平片无明显异常,MRI表现为典型的地图样表现。中晚期骨梗死,X线平片可见不规则的斑片状骨密度增高影,CT示病变呈不规则多发类圆形高密度病灶。MR T1WI和T2WI均呈低信号。结论 MRI检查对早期骨梗死的诊断具有较高的敏感性,当怀疑骨梗死时,应常规行MRI检查。Objective To explore the key points of the imaging diagnosis of bone infarction. Methods X-ray, CT and MRI scanning were carried out in 16 cases of clinically and pathologically confirmed bone infarction. The imaging features were analyzed and summarized, and bone infarction was classified into early stage and middle and late stage. The imaging findings were compared with pathologic results. Results The X plain film showed no abnormality and the MRI presented typical ＂map shaped＂ manifestation in early bone infarction. The X plain film presented spotted high density imaging and the computed tomography showed irregular, multiple high density round focus in middle and late stage of bone infarction. Both stages showed low-signal on T1WI and T2WI. Conclusion MRI possesses a higher sensitivity in the diagnosis of early bone infarction. MR examination should be performed routinely when bone infarction was suspected.

关 键 词：骨梗死 体层摄影术 X线计算机 磁共振成像 

分 类 号：R68[医药卫生—骨科学] R817.4[医药卫生—外科学]