CAJ | 학술논문

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。
목적：탐토골경사적영상학표현특점。방법：2012년4월-2013년12월수치경수술、활검급림상수방증실적골경사환자12례，대기X선평편、CT화MRI검사자료진행회고성분석。결과：병변주요발생우고골하단화경골상단，다쌍측발병；급성기X선화CT표현위음성혹국부골질소송；MRI표현위병변중심T1WI정등혹저신호，T2WI정등혹략고신호；아급성기 X 선급 CT 표현위충식양개변급반편상、조사상개화；병조변연정전형적지도양개변；MRI표현위병변중심T1WI정등혹초저신호，T2WI정등혹략고신호，병조변연정전형적지도양개변。만성기X선화CT정불규칙형경화，MRI표현위T1WI、T2WI균정저신호。결론：MRI검사시진단조기골경사최유효적방법，가이발현조기병변，X선평편대우아급성기급만성기병변유방조，CT교평편민감。
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 signal in lesions center,and T2WI showed equal or slightly higher signal;X-ray and CT showed moth-eaten changes,patchy or clostridium calcification in subacute phase;the edge of lesion showed a typical map-like changes;MRI showed T1WI performed equal or slightly lower signal in lesions center,and T2WI showed equal or slightly hyperintense lesion edges typical map-like changes.Chronic phase X-ray and CT were irregular sclerosis;T1WI and T2WI both were showed low signal in MRI.Conclusion:MRI examination is the most effective method in early diagnosis of bone infarction.It can detect early lesions,while the X-ray film was helpful for subacute and chronic lesions,in addation,the CT is more sensitive than plain film.