To Investigate the Application Value of Chest Low-dose CT in the Early Screening of Lung Cancer in the Elderly Population
Objective To explore the application value of chest low-dose CT in the early screening of lung cancer in the elderly population.Methods Clinical data of 248 elderly patients with lung cancer admitted to our hospital from February 2020 to April 2022 were retrospectively analyzed.All patients received chest low-dose CT diagnosis.After pathological diagnosis,the patients in this group were divided into lung adenocarcinoma(n=221)and lung squamous cell carcinoma(n=27)according to pathological types.The spiral CT signs of lung cancer patients with different pathological types were compared.Results In this group of patients,low-dose CT examination of the chest showed the following abnormal pathological signs:there were 82 cases(33.06％)of pleural lesions,45 cases(18.15％)of hilar mass,42 cases(16.94％)of cavity and cavity lesions,22 cases(8.87％)of multiple pulmonary nodules,35 cases(14.11％)of diffuse pulmonary interstitial lesions,12 cases(4.84％)of solitary nodules,10 cases of tracheal stenosis and obstruction(4.03％).The proportion of burr/spinous process,pleural depression,vascular junction signs in lung adenocarcinoma was higher than that in lung squamous cell carcinoma(P＜0.05).There was no significant difference in the lobulation and vacuole/cavity signs between lung adenocarcinoma and lung squamous cell carcinoma(P＞0.05).The CTDI,DLP and ED of low-dose chest CT were lower than those of conventional chest CT,and the difference was statistically significant(P＜0.05).Compared with low-dose chest CT,the noise values of the predestined layer of the aortic arch,the bronchial bifurcation layer and the diaphragmatic top border layer were lower,and the difference was statistically significant(P＜0.05).Conclusion The application of low-dose chest CT has good application value in the early screening of lung cancer in the elderly physical examination population,and it can be found that there are obvious differences in the signs of different pathological types of lung cancer,which provides a reliable basis for the diagnosis and treatment of the disease.Meanwhile,the radiation dose of low-dose chest CT is lower than that of conventional chest CT,and the safety is guaranteed.
Chest Low-dose CTDiagnosisSenile Lung CancerEarly ScreeningPathological Type
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