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目的分析骨盆各部外伤X线平片与CT 检查的适应性，供基层医院在检查手段、效率及费用上作最优化选择。方法回顾性统计骨盆外伤骨折阳性同时具备平片与CT 检查图像52例，分析其显示结果与检查方式的关系。结果对于大骨折，平片与CT 检查均能明确诊断，后者提供信息更丰富。对小骨折及可疑骨折，52例分析，总体结果为：坐骨、耻骨、髂骨、髋关节及股骨头颈部作平片检查及CT 检查的适应性与价值不同（具体见正文）。结论在诊断骨盆的坐骨、耻骨、股骨头颈严重骨折方面 X线平片具有确诊性，但在髂骨、髋关节及股骨颈轻微嵌入骨折，尤其线形骨折CT 检查明显优于平片，可作为基层医院在检查手段、效率及费用上作最优化选择的依据。“,” Objective To analyze the adaptability of each pelvic trauma between plain film radiography and CT examination is in order to help the primary hospitals to do the best option on examination means ,efficiency and cost .Methods A retrospective statistics about 52 cases of trauma w hich are positive and pelvic fractures and also have plain film radiography and CT images ,an analysis of the relationship between displayed results and examination methods .Results For fractures of big bones ,both plain film radiography and CT examination can confirm the diagnosis ,but CT examination provides more information .To analyze the 52 cases of fractures of ossicle and dubitable fractures ,the general result show s that the adaptabilities and values of plain film radiography and CT examination between ischium ,pubis ,ilium ,hip joint ,and the pate of femoral head are different ,(specifically ,see text) .Conclusion To diagnose pelvis in ischium ,pubis and serious frac-tures of the pate of femoral head ,plain film radiography can make the final diagnosis .But in ilium ,hip joint and slightly embedded fractures in the pate of femoral head ,especially linear fractures ,obviously ,CT examination is superior to plain film radiography examination .This provides the basis for the primary hospitals to do the best option on examination means ,efficiency and cost .