重庆医学2018，Vol.47Issue(4)：467-469,472,4.DOI:10.3969/j.issn.1671-8348.2018.04.010
低剂量螺旋CT扫描在肺癌高危人群筛查中的价值
Value of low-dose spiral CT scanning in high-risk population screening of lung cancer
摘要
Abstract
Objective To investigate the application value of low-dose spiral CT(LDCT) scanning in high-risk population screening of lung cancer.Methods A total of 1 071 cases of LDCT lung scanning(observation group) and 350 cases of conventional dose CT lung scanning dose(control group) from October 2015 to May 2017 were performed the comparison on mean irradiation dose,lesion occurrence rate and diagnostic accuracy.Results The computed tomographic dose index(CTDI) in the observation group was(0.74±0.28)mSv;the excellent image quality rate was 95.42 ％;the positive detection rate was 43.60 ％ (467/1 071);13cases(1.21 ％)were confirmed as lung cancer by pathology.The average CTDI in the control group was(14.46 ± 4.21)mSv;the excellent image quality rate was 98.85 ％;the positive detection rate was 45.1 ％ (158/350);5 cases(1.43％) were confirmed as lung cancer by pathology.The average radiation dose and image quality showed statistically significant difference between the two groups (P＜0.05),and the positive detection rate and diagnostic rate of lung cancer had no statistical difference between the two groups (P＞0.05).Conclusion LDCT scan has good image quality,can significantly reduce the subject's irradiation dose without affecting the detection of lung lesions and lung cancer occurrence rate.关键词
肺肿瘤/筛查/低剂量螺旋CT/图像Key words
lung cancer/screening/low dose spiral CT/image分类
医药卫生引用本文复制引用
游兴攀,官彬,陈德全,沈国洪..低剂量螺旋CT扫描在肺癌高危人群筛查中的价值[J].重庆医学,2018,47(4):467-469,472,4.基金项目
重庆市合川区科委科技计划项目(合川-2015-39). （合川-2015-39）
