MedFL-Stress shows that FedBN reduces the best-to-worst hospital Dice gap by 41% versus FedAvg in federated brain tumor segmentation under simulated cross-hospital MRI shifts, improving the weakest site by 3.5 points with only a 0.5-point mean drop.
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MedFL-Stress: A Systematic Robustness Evaluation of Federated Brain Tumor Segmentation under Cross-Hospital MRI Appearance Shift
MedFL-Stress shows that FedBN reduces the best-to-worst hospital Dice gap by 41% versus FedAvg in federated brain tumor segmentation under simulated cross-hospital MRI shifts, improving the weakest site by 3.5 points with only a 0.5-point mean drop.