Feasibility of Federated Learning from Client Databases with Different Brain Diseases and MRI Modalities

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Auteurs principaux: Wagner, Felix, Xu, Wentian, Saha, Pramit, Liang, Ziyun, Whitehouse, Daniel, Menon, David, Newcombe, Virginia, Voets, Natalie, Noble, J. Alison, Kamnitsas, Konstantinos
Format: Preprint
Publié: 2024
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author Wagner, Felix
Xu, Wentian
Saha, Pramit
Liang, Ziyun
Whitehouse, Daniel
Menon, David
Newcombe, Virginia
Voets, Natalie
Noble, J. Alison
Kamnitsas, Konstantinos
author_facet Wagner, Felix
Xu, Wentian
Saha, Pramit
Liang, Ziyun
Whitehouse, Daniel
Menon, David
Newcombe, Virginia
Voets, Natalie
Noble, J. Alison
Kamnitsas, Konstantinos
contents Segmentation models for brain lesions in MRI are typically developed for a specific disease and trained on data with a predefined set of MRI modalities. Such models cannot segment the disease using data with a different set of MRI modalities, nor can they segment other types of diseases. Moreover, this training paradigm prevents a model from using the advantages of learning from heterogeneous databases that may contain scans and segmentation labels for different brain pathologies and diverse sets of MRI modalities. Additionally, the confidentiality of patient data often prevents central data aggregation, necessitating a decentralized approach. Is it feasible to use Federated Learning (FL) to train a single model on client databases that contain scans and labels of different brain pathologies and diverse sets of MRI modalities? We demonstrate promising results by combining appropriate, simple, and practical modifications to the model and training strategy: Designing a model with input channels that cover the whole set of modalities available across clients, training with random modality drop, and exploring the effects of feature normalization methods. Evaluation on 7 brain MRI databases with 5 different diseases shows that this FL framework can train a single model achieving very promising results in segmenting all disease types seen during training. Importantly, it can segment these diseases in new databases that contain sets of modalities different from those in training clients. These results demonstrate, for the first time, the feasibility and effectiveness of using FL to train a single 3D segmentation model on decentralised data with diverse brain diseases and MRI modalities, a necessary step towards leveraging heterogeneous real-world databases. Code: https://github.com/FelixWag/FedUniBrain
format Preprint
id arxiv_https___arxiv_org_abs_2406_11636
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Feasibility of Federated Learning from Client Databases with Different Brain Diseases and MRI Modalities
Wagner, Felix
Xu, Wentian
Saha, Pramit
Liang, Ziyun
Whitehouse, Daniel
Menon, David
Newcombe, Virginia
Voets, Natalie
Noble, J. Alison
Kamnitsas, Konstantinos
Image and Video Processing
Computer Vision and Pattern Recognition
Machine Learning
I.4.9; I.4.6; I.2.11; I.4.0
Segmentation models for brain lesions in MRI are typically developed for a specific disease and trained on data with a predefined set of MRI modalities. Such models cannot segment the disease using data with a different set of MRI modalities, nor can they segment other types of diseases. Moreover, this training paradigm prevents a model from using the advantages of learning from heterogeneous databases that may contain scans and segmentation labels for different brain pathologies and diverse sets of MRI modalities. Additionally, the confidentiality of patient data often prevents central data aggregation, necessitating a decentralized approach. Is it feasible to use Federated Learning (FL) to train a single model on client databases that contain scans and labels of different brain pathologies and diverse sets of MRI modalities? We demonstrate promising results by combining appropriate, simple, and practical modifications to the model and training strategy: Designing a model with input channels that cover the whole set of modalities available across clients, training with random modality drop, and exploring the effects of feature normalization methods. Evaluation on 7 brain MRI databases with 5 different diseases shows that this FL framework can train a single model achieving very promising results in segmenting all disease types seen during training. Importantly, it can segment these diseases in new databases that contain sets of modalities different from those in training clients. These results demonstrate, for the first time, the feasibility and effectiveness of using FL to train a single 3D segmentation model on decentralised data with diverse brain diseases and MRI modalities, a necessary step towards leveraging heterogeneous real-world databases. Code: https://github.com/FelixWag/FedUniBrain
title Feasibility of Federated Learning from Client Databases with Different Brain Diseases and MRI Modalities
topic Image and Video Processing
Computer Vision and Pattern Recognition
Machine Learning
I.4.9; I.4.6; I.2.11; I.4.0
url https://arxiv.org/abs/2406.11636