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Training and Validation of a Robust PET Radiomic-Based Index to Predict Distant-Relapse-Free-Survival After Radio-Chemotherapy for Locally Advanced Pancreatic Cancer

Training and Validation of a Robust PET Radiomic-Based Index to Predict Distant-Relapse-Free-Survival After Radio-Chemotherapy for Locally Advanced Pancreatic Cancer
To assess the value of 18F-Fluorodeoxyglucose (18F-FDG) PET Radiomic Features (RF) in predicting Distant Relapse Free Survival (DRFS) in patients with Locally AdvancedPancreaticCancer (LAPC) treated with radio-chemotherapy.
One-hundred-ninety-eight RFs were extracted using IBSI (Image Biomarker Standardization Initiative) consistent software from pre-radiotherapy images of 176 LAPC patients treated with moderate hypo-fractionation (44.25Gy, 2.95Gy/fr). Tumors were segmented by applying a previously validated semi-automatic method. One-hundred-twenty-six RFs were excluded due to poor reproducibility and/or repeatability and/or inter-scanner variability. Read more . . . 


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