【摘 要】
：
目的探讨骨梗死的影像学特征.方法搜集经临床随访及病理证实的骨梗死13例,男5例,女8例.所有病例均行X线检查,其中同时行CT检查者4例,行MR检查者7例,3种检查都进行者2例.将骨
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目的探讨骨梗死的影像学特征.方法搜集经临床随访及病理证实的骨梗死13例,男5例,女8例.所有病例均行X线检查,其中同时行CT检查者4例,行MR检查者7例,3种检查都进行者2例.将骨梗死分为早、中、晚期,分析X线、CT及MRI表现,总结其影像学特征.结果骨梗死早、中期X线、CT表现为局部的骨质疏松及斑点状钙化,MR T1WI骨梗死灶中央部分呈等或略低信号,边缘为迂曲匐行的低信号带,T2WI中央部分呈等或略高信号,边缘呈迂曲的高信号带;晚期X线及CT呈不规则、迂曲状骨质硬化,MR T1WI及T2WI均呈低信号..结论MRI是诊断早期骨梗死最有效的方法,可以发现早期病变,X线平片对中晚期病变有帮助,CT较平片敏感,骨梗死的诊断应三者相结合.
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