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Radiomic approach on pancreatic ductal adenocarcinoma. 1. Image acquisition: CT scans acquired on venous phase; 2. Image segmentation: semiautomatic segmentation performed on CT scans; 3. Feature extraction: tumor shape, first order features, texture features, and wavelet filter; 4. Feature selection: cluster analysis was used for the features selection; 5. Model building: survival and clinical data combined with radiomic features.
