The application of artificial intelligence-based deep learning algorithms combined with high tube voltage and low tube current low-dose CT in lung screening
10.3969/j.issn.1002-1671.2025.02.032
- VernacularTitle:基于人工智能的深度学习算法结合高管电压、低管电流的低剂量CT在肺部体检中的应用
- Author:
Bingbing WU
1
;
Chensi XU
;
Yuhong ZHAO
;
Kai HU
Author Information
1. 洛阳市第一人民医院放射科,河南 洛阳 471002
- Publication Type:Journal Article
- Keywords:
low-dose comptued tomography;
deep learning image reconstruction;
lung screening
- From:
Journal of Practical Radiology
2025;41(2):319-322
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the application value of the deep learning image reconstruction algorithm(ClearInfinity,CI)combined with high tube voltage and low tube current low-dose computed tomography(LDCT)in lung screening.Methods A total of 216 patients underwent lung screening CT plain scan were selected.Patients were randomly divided into conventional-dose group(A group)and low-dose group(B group).Image reconstructed by using the iterative algorithm(ClearView+,CV)in group A,CV-60％,CI-30％,CI-60％,and CI-90％algorithms in group B.CT value,noise,image quality,and edge detail were conducted with both objective and subjective evaluations.Lung nodules were automatically detected by using computer-aided diagnosis software,and radiation doses were recorded.Results Images reconstructed with the CI showed significantly superior signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR)than with the CV(P＜0.05).Additionally,there was a significant correlation in lung nodule detection performance between the CI and the CV(P＜0.05).The effective dose(ED)in group B was reduced by approximately 85.80％compared to group A(P＜0.01).Although the SNR and CNR were highest with CI-90％,the subjective image quality was lower than that of CI-60％.CI-60％and CI-90％showed same performance in lung nodule detection using artificial intelligence(AI)software.Conclusion The application of LDCT scanning protocol using the CI algorithm based on deep learning,combined with high tube voltage and low tube current is feasible for lung screening.It is recommended to use CI-60％in clinical diagnosis to improve the safety and diagnostic confidence of lung CT screening.
