Objective The examination approach and value of X-Ray in diagnosis of pulmonary abscess are to be investigated. Methods Chose 42 patients with pulmonary abscess treated in our hospital from March 2013 to July 2014 and treat them with different diagnosis approaches,the X-Ray diagnosis and CT diagnosis,and then compare the diagnosis accuracy of these two diagnosis approaches. Results the diagnosis accuracy and misdiagnosis incidence in study group were 92.86% and 7.1%,while the diagnosis accuracy and misdiagnosis incidence in control group were 80.95% and 19.0%. There was a quite differential between diagnosis accuracy in the two groups,and such a differential had statistic value(P<0.05). Conclusion X-Ray examination is much more accurate in diagnosis of abscess size and position with high resolution ratio,and in addition,it can provide favorable treatment based on their diagnosis results for patients,thus X-Ray examination is worthwhile to be promoted in treatment of pulmonary abscess.%目的：探究肺脓肿患者采用 X 线诊断的方法和价值。方法选取2013年3月～2014年7月收治的42例肺脓肿患者进行诊断，分别采用 X 线诊断和 CT 诊断，对比两种诊断方法的准确率。结果实验组诊断准确率为92.86%，误诊率为7.1%；对照组诊断的准确率为80.95%，误诊率为19.0%，两种方法诊断的准确率差异有统计学意义（P<0.05）。结论肺脓肿患者采用 X 线诊断检查，其分辨率较高，并对脓肿的大小和位置进行准确定位，并根据检查结果为患者提供良好的治疗。
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