骨梗死的影像学对比分析

The imaging manifestation compared analysis of the bone infarction

目的:探讨骨梗死的影像学诊断要点。方法:12例病人均行X线平片、CT、MRI检查。共累计29个部位,股骨下段10个,胫骨上段8个,胫骨下段5个,股骨颈4个,胫骨粗隆部2个。结果:早期骨梗死,X线平片无明显异常,中期CT表现为髓腔不均匀钙化,晚期MRI表现为典型的地图样表现。结论:MRI是检查诊断早期骨梗死最为有效的方法,X线平片对中晚期病变有帮助,CT较平片敏感。

Objective： To explore the imaging diagnostic points of bone infarction. Methods： Therewere 12 cases suspected bone infarctiou. AUcases were examined by X- ray, MRI,CT. The twenty - nine sites of the bane infarct of 12 patients were found ,including 10 in the distal femur ,8 in the proximal tibia ,5 in the distal tibia,4 in the femoral neck and 2 in the tuberosity. Results： The cases without ＇abnormality in plain film determined as early bone infarction. CT manifestion was inhomogeneous ossification in the intramedullary. MRI manifestatiou was map - shaped lesions with the surrounding sclerotic rim in the intrameullary cavity . Conclusion： MRI is the most effective way to examine and find the bone infarct in the early stags. Plain radiography was helpful to diagnose the bone infarct in the middle and later stages, CT examination is more sensitive the plain radiography.