Chest contrast-enhanced CT combined with artificial intelligence iterative reconstruction for bronchial artery imaging
10.13929/j.issn.1003-3289.2025.04.005
- VernacularTitle:胸部增强CT联合深度学习全模型迭代算法用于支气管动脉成像
- Author:
Youyong WEI
1
;
Tiantian WANG
;
Yingwei LUO
;
Linyu LU
;
Yanping DING
;
Guoqing YAO
;
Qinglian LI
;
Xiaohui GUAN
Author Information
1. 广西壮族自治区人民医院放射科,广西 南宁 530012
- Publication Type:Journal Article
- Keywords:
bronchial arteries;
tomography,X-ray computed;
artificial intelligence;
prospective studies
- From:
Chinese Journal of Medical Imaging Technology
2025;41(4):530-534
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of chest contrast-enhanced CT(C-CECT)combined with artificial intelligence iterative reconstruction(AIIR)for bronchial artery(BA)imaging.Methods Seventy patients who underwent C-CECT were prospectively enrolled.The images were reconstructed with AIIR(AIIR group)and hybrid iterative reconstruction(HIR,HIR group),respectively.The overall image quality,the traceability of BA,the sharpness of BA and the diagnostic confidence of abnormalities of BA were subjectively graded using a 5-point scale by two radiologists,respectively.The subjective scores and inter-observer agreement were compared between groups.The noise(SD)in reconstructed images of thoracic aorta,pulmonary trunk,BA and spinal erectors,the contrast-to-noise ratio(CNR)of the above 3 arteries relative to spinal erectors,and the diameters of BA at the origin,bifurcation and pulmonary hilum were compared between groups.Results The scores of the overall image quality,the traceability of BA,the sharpness of BA and the diagnostic confidence of abnormalities of BA were all significantly higher in AIIR group than those in HIR group(all P＜0.001),all with good inter-observer agreement(Kappa=0.46-0.73).SD of the aorta,pulmonary artery trunk,BA and erector spinal muscle in AIIR group were lower than those in HIR group,while CNR of above 3 arteries were higher than those in HIR group(all P＜0.05).No significant difference of the diameter of BA at each position was found between groups(all P＞0.05),while the consistency of measurement of AIIR group was higher than that of HIR group(intra-class correlation coefficient:0.89-0.94 vs.0.63-0.78).Conclusion C-CECT combined with AIIR could significantly improve imaging quality and diagnostic confidence of BA.
