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Lin X, Zhou T, Ni J, Li J, Guan Y, Jiang X, Zhou X, Xia Y, Xu F, Hu H, Dong Q, Liu S, Fan L. CT-based whole lung radiomics nomogram: a tool for identifying the risk of cardiovascular disease in patients with chronic obstructive pulmonary disease. Eur Radiol 2024:10.1007/s00330-023-10502-9. [PMID: 38216755 DOI: 10.1007/s00330-023-10502-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 09/22/2023] [Accepted: 10/31/2023] [Indexed: 01/14/2024]
Abstract
OBJECTIVES To evaluate the value of CT-based whole lung radiomics nomogram for identifying the risk of cardiovascular disease (CVD) in patients with chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS A total of 974 patients with COPD were divided into a training cohort (n = 402), an internal validation cohort (n = 172), and an external validation cohort (n = 400) from three hospitals. Clinical data and CT findings were analyzed. Radiomics features of whole lung were extracted from the non-contrast chest CT images. A radiomics signature was constructed with algorithms. Combined with the radiomics score and independent clinical factors, multivariate logistic regression analysis was used to establish a radiomics nomogram. ROC curve was used to analyze the prediction performance of the model. RESULTS Age, weight, and GOLD were the independent clinical factors. A total of 1218 features were extracted and reduced to 15 features to build the radiomics signature. In the training cohort, the combined model (area under the curve [AUC], 0.731) showed better discrimination capability (p < 0.001) than the clinical factors model (AUC, 0.605). In the internal validation cohort, the combined model (AUC, 0.727) performed better (p = 0.032) than the clinical factors model (AUC, 0.629). In the external validation cohort, the combined model (AUC, 0.725) performed better (p < 0.001) than the clinical factors model (AUC, 0.690). Decision curve analysis demonstrated the radiomics nomogram outperformed the clinical factors model. CONCLUSION The CT-based whole lung radiomics nomogram has the potential to identify the risk of CVD in patients with COPD. CLINICAL RELEVANCE STATEMENT This study helps to identify cardiovascular disease risk in patients with chronic obstructive pulmonary disease on chest CT scans. KEY POINTS • To investigate the value of CT-based whole lung radiomics features in identifying the risk of cardiovascular disease in chronic obstructive pulmonary disease patients. • The radiomics nomogram showed better performance than the clinical factors model to identify the risk of cardiovascular disease in patients with chronic obstructive pulmonary disease. • The radiomics nomogram demonstrated excellent performance in the training, internal validation, and external validation cohort (AUC, 0.731; AUC, 0.727; AUC, 0.725).
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Affiliation(s)
- XiaoQing Lin
- Department of Radiology, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
- College of Health Sciences and Engineering, University of Shanghai for Science and Technology, Shanghai, 200003, China
| | - TaoHu Zhou
- Department of Radiology, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
- School of Medical Imaging, Weifang Medical University, Weifang, Shandong, China
| | - Jiong Ni
- Department of Radiology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jie Li
- Department of Radiology, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
- College of Health Sciences and Engineering, University of Shanghai for Science and Technology, Shanghai, 200003, China
| | - Yu Guan
- Department of Radiology, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Xin'ang Jiang
- Department of Radiology, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Xiuxiu Zhou
- Department of Radiology, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Yi Xia
- Department of Radiology, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Fangyi Xu
- Department of Radiology, Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Zhejiang, China
| | - Hongjie Hu
- Department of Radiology, Zhejiang University School of Medicine Sir Run Run Shaw Hospital, Zhejiang, China
| | - Qian Dong
- Department of Radiology, University of Michigan Taubman Center, Ann Arbor, MI, USA
| | - Shiyuan Liu
- Department of Radiology, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China
| | - Li Fan
- Department of Radiology, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, China.
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