低剂量螺旋CT在肺孤立性结节诊断中的研究与应用

Research and application of low dose spiral CT in the diagnosis of solitary pulmonary nodules

目的:探讨低剂量螺旋CT应用于诊断肺孤立性结节的临床效果。方法:收治肺孤立性结节患者100例,采用低剂量螺旋CT扫描进行检查。结果:分叶征56例,其中良性结节出现率低于恶性结节(P<0.05);结节内发现钙化征22例,良性与恶性发生率分别为77.27%、22.73%;支气管充气征25例,良性与恶性发生率分别为84.00%、16.00%,差异有统计学意义(P<0.05)。结论:肺部低剂量螺旋CT不仅可以有效降低单次检查与多次随访检查的辐射剂量,还能在保证诊断图像质量的基础上有效鉴别良恶性结节。

Objective：To explore the clinical effect of low dose spiral CT in the diagnosis of solitary pulmonary nodules.Methods：100 patients with solitary pulmonary nodules were examined by low dose spiral CT scanning.Results：There were 56 cases of lobular sign,in which the incidence of benign nodules was lower than that of malignant nodules（P〈0.05）;22 cases of calcification were found in nodules,the incidence of benign and malignant was 77.27% and 22.73%,25 cases of bronchoalveolar sign,benign and malignant 84% and 16% respectively（P〈0.05）.Conclusion：The low dose spiral CT of the lung can not only effectively reduce the radiation dose of single and multiple follow-up,but also can effectively identify the benign and malignant nodules on the basis of ensuring the quality of the diagnostic image.