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目的:观察低剂量螺旋CT(LDCT)在金昌地区肺癌高危人群筛查中的应用。方法:从2012年12月至2015年9月,共计完成5545例肺癌高危人群LDCT筛查并进行卫生经济学评估。结果:共计5545例肺癌高危人群中,男性3705例,女性1840例。共筛查出在肺部有无论形态、大小结节者共计1079例,占全部筛查人群的19.46%,其中,需要年度复查者536例,占48.86%,占全部筛查人群的9.67%;需要间隔三月复查者502例,占46.52%,占全部筛查人群9.05%;全部筛查者中发现有41例高度疑似肺癌者,约占罹患肺结节人群的3.80%,占全部筛查人群0.74%。所有受检者平均受照剂量约为56.7m Gy。图像质量能够达到影像诊断需求。结论:LDCT对肺癌高危人群的筛查、对肺部小结节的早期定量和定性诊断截至目前是最有效的影像学检查方法,LDCT必将成为肺癌高危人群筛查的首选。
Objective: To observe the application of low dose spiral computed tomography (LDCT) screening in high risk population of lung cancer in Jinchang area. Methods: From December 2012 to September 2015, a total of 5545 LDCT screening of high-risk groups of lung cancer were completed and health economics assessment. Results: A total of 5545 high-risk lung cancer patients, male 3705 cases, 1840 females. A total of 1079 cases were found, accounting for 19.46% of all screening population. Among them, 536 cases needed annual review, accounting for 48.86%, accounting for 9.67% of all screening population. Need to repeat the March review of 502 cases, accounting for 46.52%, accounting for 9.05% of all screening population; all screening were found in 41 cases of highly suspected lung cancer, accounting for about 3.80% of patients suffering from pulmonary nodules, accounting for all screening 0.74% of the population. The average dose of all subjects was about 56.7 m Gy. Image quality to meet the needs of diagnostic imaging. Conclusion: LDCT screening of high-risk groups of lung cancer, the early quantitative and qualitative diagnosis of small pulmonary nodules up to now is the most effective imaging method, LDCT will become the first choice for screening high-risk lung cancer patients.