目的 评估便携式数字化放射摄影系统(DR)在野战环境下诊断骨折伤的应用价值。方法 回顾性分析解放军总医院第三医学中心2019-01至2022-03期间6次外出执行任务中收治的疑似骨折患者191例,所有骨折部位均行便携式DR检查和移动DR检查,并依据临床最终诊断结果作为金标准,比较两种设备诊断骨折的准确性、敏感性和特异性,并对两种拍摄系统的成像质量进行分析。结果 便携式DR与移动DR的成像质量相比,差异无统计学意义;191例疑似骨折患者,在采取相应的治疗后,确诊骨折例数共计91例。便携式DR检出80例(41.9%),误诊6例,漏诊11例;移动DR检出84例(44.0%),误诊6例,漏诊7例,两者检出率比较,差异无统计学意义。便携式DR诊断骨折的准确率、敏感性和特异性接近于移动DR。结论 便携式DR在野战环境下对骨折的诊断性能与移动DR相比基本无差异。

Objective To evaluate the application value of portable digital radiography system (DR) in the diagnosis of fracture injuries in field environments. Methods A retrospective analysis was carried out on 191 patients with suspected fractures which incurred during 6 outdoor missions by the Third Medical Center of Chinese PLA General Hospital from January 2019 to March 2022. All fracture sites were examined with both portable and mobile DR, the final clinical diagnoses were taken as the gold standard, and the respective fracture diagnosis accuracies as well as sensitivities of both devices were compared. Afterwards, the imaging qualities of both imaging systems were also analyzed. Results There was no significant difference in imaging quality between portable DR and mobile DR. Of the 191 patients with suspected fractures, 91 were diagnosed after taking corresponding treatment. 80 cases (41.9%) were detected by portable DR, 6 cases were misdiagnosed and 11 cases were missed, while 84 cases (44.0%) were detected by mobile DR, 6 cases were misdiagnosed, and 7 cases were missed. There was no significant difference between the two methods. The accuracy, sensitivity and specificity of portable DR in fracture diagnosis were close to those of mobile DR. Conclusions The fracture diagnosis performance of portable DR in field operation sites is basically comparable to that of mobile DR.