骨梗死的影像学表现
李秋莉;乔聚义;席彬;刘艳
【期刊名称】《中国社区医师》 【年(卷),期】2014(000)033
【摘要】目的:探讨骨梗死的影像学表现特点。方法:2012年4月-2013年12月收治经手术、活检及临床随访证实的骨梗死患者12例,对其X线平片、CT和MRI检查资料进行回顾性分析。结果:病变主要发生于股骨下段和胫骨上段,多双侧发病;急性期X线和CT表现为阴性或局部骨质疏松;MRI表现为病变中心T1WI呈等或低信号,T2WI呈等或略高信号;亚急性期 X 线及 CT 表现为虫蚀样改变及斑片状、条梭状钙化;病灶边缘呈典型的地图样改变;MRI表现为病变中心T1WI呈等或稍低信号,T2WI呈等或略高信号,病灶边缘呈典型的地图样改变。慢性期X线和CT呈不规则形硬化,MRI表现为T1WI、T2WI均呈低信号。结论:MRI检查是诊断早期骨梗死最有效的方法,可以发现早期病变,X线平片对于亚急性期及慢性期病变有帮助,CT较平片敏感。%Objective:To investigate the imaging features of bone infarction.Methods:12 patients with bone infarction were selected from April 2012 to December 2013.All the subjects were confirmed by surgery,biopsy and in clinical follow-up,then we retrospectively analyzed their clinical data of X-ray,CT and MRI.Results:Lesions mainly occurred in the distal femur and tibia bone segment,and most of them were multi-bilateral;acute phase of the X-ray and CT showed negative or partial osteoporosis;therefore,MRI showed that T1WI performed equal or low