APMAdvances in Precision Medicine2424-85922424-9106Bio-Byword Scientific Publishing Pty. Ltd.10.26689/APM.v11i8.16073ArticleDiagnostic Value and Risk Assessment of Low-dose CT Scanning Technology in Lung Cancer Screeninghttps://artdesignp.com/journal/APM/11/8/10.26689/APM.v11i8.16073LiuJing20261182026-08-26Purpose: To evaluate the diagnostic value and risk of low-dose CT scanning technology in lung cancer screening. Methods: Lung cancer patients who underwent CT examinations in private secondary hospitals from 2024.1 to 2025.12 were included. The total sample size was 40 cases. According to different scanning plans, the patients were divided into a low-dose group and a conventional-dose group, 20 cases each. The differences in radiation dose and image quality scores between the two groups were evaluated. Results: A total of 35 pulmonary nodules were detected in the low-dose CT group and 39 in the conventional-dose CT group. The difference in detection type and size distribution of nodules between the two groups was small, P > 0.05. The CT dose index, dose length product, and effective dose of the low-dose group were lower than those of the conventional dose group, P < 0.05. There were small differences in the subjective scores of image quality and noise, signal-to-noise ratio, and contrast-to-noise ratio between the two groups, P > 0.05. Conclusion: In the diagnosis and screening of lung cancer patients, low-dose CT scanning technology can reduce radiation dose while ensuring detection and image quality, and has the potential to replace conventional dose.Lung cancer patients, Diagnosis, Screening, Low-dose CT scanning technology, Radiation dose

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