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Learning and depicting lobe-based radiomics feature for COPD Severity staging in low-dose CT images.

Authors :
Zhao, Meng
Wu, Yanan
Li, Yifu
Zhang, Xiaoyu
Xia, Shuyue
Xu, Jiaxuan
Chen, Rongchang
Liang, Zhenyu
Qi, Shouliang
Source :
BMC Pulmonary Medicine; 6/24/2024, Vol. 24 Issue 1, p1-13, 13p
Publication Year :
2024

Abstract

Background: Chronic obstructive pulmonary disease (COPD) is a prevalent and debilitating respiratory condition that imposes a significant healthcare burden worldwide. Accurate staging of COPD severity is crucial for patient management and treatment planning. Methods: The retrospective study included 530 hospital patients. A lobe-based radiomics method was proposed to classify COPD severity using computed tomography (CT) images. First, we segmented the lung lobes with a convolutional neural network model. Secondly, the radiomic features of each lung lobe are extracted from CT images, the features of the five lung lobes are merged, and the selection of features is accomplished through the utilization of a variance threshold, t-Test, least absolute shrinkage and selection operator (LASSO). Finally, the COPD severity was classified by a support vector machine (SVM) classifier. Results: 104 features were selected for staging COPD according to the Global initiative for chronic Obstructive Lung Disease (GOLD). The SVM classifier showed remarkable performance with an accuracy of 0.63. Moreover, an additional set of 132 features were selected to distinguish between milder (GOLD I + GOLD II) and more severe instances (GOLD III + GOLD IV) of COPD. The accuracy for SVM stood at 0.87. Conclusions: The proposed method proved that the novel lobe-based radiomics method can significantly contribute to the refinement of COPD severity staging. By combining radiomic features from each lung lobe, it can obtain a more comprehensive and rich set of features and better capture the CT radiomic features of the lung than simply observing the lung as a whole. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14712466
Volume :
24
Issue :
1
Database :
Complementary Index
Journal :
BMC Pulmonary Medicine
Publication Type :
Academic Journal
Accession number :
178065632
Full Text :
https://doi.org/10.1186/s12890-024-03109-3