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arXiv · 1810.13205

Multi-Task Learning for Left Atrial Segmentation on GE-MRI

Chen Chen·Wenjia Bai·Daniel Rueckert
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Abstract

Segmentation of the left atrium (LA) is crucial for assessing its anatomy in both pre-operative atrial fibrillation (AF) ablation planning and post-operative follow-up studies. In this paper, we present a fully automated framework for left atrial segmentation in gadolinium-enhanced magnetic resonance images (GE-MRI) based on deep learning. We propose a fully convolutional neural network and explore the benefits of multi-task learning for performing both atrial segmentation and pre/post ablation classification. Our results show that, by sharing features between related tasks, the network can gain additional anatomical information and achieve more accurate atrial segmentation, leading to a mean Dice score of 0.901 on a test set of 20 3D MRI images. Code of our proposed algorithm is available at https://github.com/cherise215/atria_segmentation_2018/.

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Chen Chen, Wenjia Bai, Daniel Rueckert. 2018-10-31. Multi-Task Learning for Left Atrial Segmentation on GE-MRI. https://doi.org/10.1007/978-3-030-12029-0_32

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