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ROC curves obtained by binary classification models. The black diagonal line in the diagram is the random line which is the worst possible performance a model can achieve. CTR is CT-based radiomics, PETR is PET-based radiomics, CPR is the combination CTR and PETR. (A) Predicting lung adenocarcinoma from lung cancer patients. (B) Predicting squamous cell carcinoma from lung cancer patients. (C) The distinction between metastatic lung cancer and primary lung cancer.
