1. Identifying pulmonary nodules or masses on chest radiography using deep learning: external validation and strategies to improve clinical practice.
- Author
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Liang, C.-H., Liu, Y.-C., Wu, M.-T., Garcia-Castro, F., Alberich-Bayarri, A., and Wu, F.-Z.
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PULMONARY nodules , *DEEP learning , *MEDICAL digital radiography , *CHEST X rays , *RADIOGRAPHY , *ALGORITHMS , *MEDICAL care , *COMPUTERS in medicine , *COMPUTER software , *SOLITARY pulmonary nodule , *LUNG tumors , *RETROSPECTIVE studies , *DIAGNOSTIC imaging , *QUALITY assurance , *COMPUTED tomography , *COMPUTER-aided diagnosis - Abstract
Aim: To test the diagnostic performance of a deep learning-based system for the detection of clinically significant pulmonary nodules/masses on chest radiographs.Materials and Methods: Using a retrospective study of 100 patients (47 with clinically significant pulmonary nodules/masses and 53 control subjects without pulmonary nodules), two radiologists verified clinically significantly pulmonary nodules/masses according to chest computed tomography (CT) findings. A computer-aided diagnosis (CAD) software using a deep-learning approach was used to detect pulmonary nodules/masses to determine the diagnostic performance in four algorithms (heat map, abnormal probability, nodule probability, and mass probability).Results: A total of 100 cases were included in the analysis. Among the four algorithms, mass algorithm could achieve a 76.6% sensitivity (36/47, 11 false negative) and 88.68% specificity (47/53, six false-positive) in the detection of pulmonary nodules/masses at the optimal probability score cut-off of 0.2884. Compared to the other three algorithms, mass probability algorithm had best predictive ability for pulmonary nodule/mass detection at the optimal probability score cut-off of 0.2884 (AUCMass: 0.916 versus AUCHeat map: 0.682, p<0.001; AUCMass: 0.916 versus AUCAbnormal: 0.810, p=0.002; AUCMass: 0.916 versus AUCNodule: 0.813, p=0.014).Conclusion: In conclusion, the deep-learning based computer-aided diagnosis system will likely play a vital role in the early detection and diagnosis of pulmonary nodules/masses on chest radiographs. In future applications, these algorithms could support triage workflow via double reading to improve sensitivity and specificity during the diagnostic process. [ABSTRACT FROM AUTHOR]- Published
- 2020
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