Hybridizing machine learning in survival analysis of cardiac PET/CT imaging.

Although the specified significance threshold was not reached, there was a clear trend toward an improved predictive discrimination of the hybridized ML model with respect to the expert-based model in the test data (Concordance index, P value = .076; AUROC, P value = .731), while a significant difference was patent between the hybridized ML model and the calcium score-based model (Concordance index, P value = .014; AUROC, P value = .025).

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