CXR-FL: Deep Learning-Based Chest X-ray Image Analysis Using Federated Learning
This work addresses privacy-preserving medical image analysis for healthcare, but it is incremental as it focuses on parameter evaluation without introducing new methods.
The paper evaluated deep learning models for chest X-ray analysis using federated learning, finding that federated learning maintains model generalizability but classification performance worsens when training on lung-only regions compared to full images.
Federated learning enables building a shared model from multicentre data while storing the training data locally for privacy. In this paper, we present an evaluation (called CXR-FL) of deep learning-based models for chest X-ray image analysis using the federated learning method. We examine the impact of federated learning parameters on the performance of central models. Additionally, we show that classification models perform worse if trained on a region of interest reduced to segmentation of the lung compared to the full image. However, focusing training of the classification model on the lung area may result in improved pathology interpretability during inference. We also find that federated learning helps maintain model generalizability. The pre-trained weights and code are publicly available at (https://github.com/SanoScience/CXR-FL).