Objective:To study clinical value of 64 slice spiral CT low-dose thin layer and conventional chest X-ray in examined pulmonary diseases .Method:408 cases of patients examed their lung in our hos-pital were divided into two groups according to their detection techniques:the experimental group ( 64 slice spiral CT low-dose thin layer lung examination group ) 92 cases ;the control group ( conventional chest X-ray lung examination group ) 364 cases, then compared the test results and detection accuracy of the two groups .Result:The irradiation dose of experimental group was significantly lower than that of control group ;the detection rate of disease cases in experimental group ( 39.13%) was significantly higher than the control group ( 23.73%).There's statistical significance difference, P<0.05.Conclusion:64 slice spiral CT low-dose thin layer and conventional chest X-ray lung check-up all have detection value for pulmonary diseases , but 64-slice spiral CT low-dose thin layer detection of lung has higher detection effects and application accu-racy , which has better clinical effect .%目的：调查研究64层螺旋CT低剂量薄层肺部检查与常规胸片肺部体检在肺部病变的应用效果与临床价值。方法：选取在我院进行肺部检查的患者408例，根据其检测技术的不同将其分为两组：实验组（64层螺旋CT低剂量薄层肺部体检组）92例；对照组（常规胸片肺部检查组）364例，而后对比研究两组患者的检测结果与检测准确率。结果：实验组患者的照射剂量明显低于对照组的照射剂量，且实验组患者的病变例数检出率为39．13％，明显高于对照组的检出率（23．73％）；差异显著，统计学上均有意义P＜0．05。结论：64层螺旋CT低剂量薄层肺部体检与常规胸片肺部检查对肺部病变均有检测价值，但是64层螺旋CT低剂量肺部体检的检测效果与应用准确率更高，具有更好的临床应用效果。
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