Federated Learning in Medical Imaging: Part II: Methods, Challenges, and Considerations.

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Abstract

Federated learning is a machine learning method that allows decentralized training of deep neural networks among multiple clients while preserving the privacy of each client’s data. Federated learning is instrumental in medical imaging because of the privacy considerations of medical data. Setting up federated networks in hospitals comes with unique challenges, primarily because medical imaging data and federated learning algorithms each have their own set of distinct characteristics. This article introduces federated learning algorithms in medical imaging and discusses technical challenges and considerations of real-world implementation of them.Copyright © 2022 American College of Radiology. Published by Elsevier Inc. All rights reserved.