Abstract:Objective To evaluate the application value of thin layer scanning and dynamic enhanced examination of electronic computed tomography (CT) in the diagnosis of peripheral small lung cancer, in order to provide a basis for early clinical diagnosis and treatment.Methods Totally 204 suspected peripheral small lung cancer patients admitted to Jiaozuo Center for Disease Control and Prevention from March 2020 to December 2022 were selected as the research subjects. They were divided into lung cancer group (135 cases) and pneumonia group (69 cases) based on pathological results. The CT imaging characteristics of the two groups were statistically compared, and the diagnostic value of CT thin layer scanning and dynamic enhancement was analyzed.Results The proportion of irregular lesions, blurry boundaries, burrs, vacuoles, enhancement, and vascular invasion in the lung cancer group was significantly higher than that in the pneumonia group (P<0.05). The sensitivity and accuracy of CT thin layer plain scan and dynamic enhancement combined diagnosis were higher than those of single CT thin layer plain scan and dynamic enhancement (P<0.05). The Kappa value of the combined diagnosis and staging results of CT thin layer scanning and dynamic enhancement, as well as the pathological results, was 0.916, which was higher than that of a single examination method (P<0.05).Conclusion The application of CT thin layer scanning combined with dynamic contrast-enhanced examination in the clinical diagnosis of peripheral small lung cancer has high diagnostic efficacy and can provide a reference basis for clinical stage differentiation, facilitating the early development of targeted treatment measures in clinical practice.