Robust Brain Tumor Segmentation with Incomplete MRI Modalities Using Hölder Divergence and Mutual Information-Enhanced Knowledge Transfer

• URL: http://arxiv.org/abs/2507.01254v1
• Date: Wed, 02 Jul 2025 00:18:07 GMT
• Title: Robust Brain Tumor Segmentation with Incomplete MRI Modalities Using Hölder Divergence and Mutual Information-Enhanced Knowledge Transfer
• Authors: Runze Cheng, Xihang Qiu, Ming Li, Ye Zhang, Chun Li, Fei Yu,
• Abstract summary: We propose a robust single-modality parallel processing framework that achieves high segmentation accuracy even with incomplete modalities.<n>Our model maintains modality-specific features while dynamically adjusting network parameters based on the available inputs.<n>By using these divergence- and information-based loss functions, the framework effectively quantifies discrepancies between predictions and ground-truth labels.
• Score: 10.66488607852885
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Multimodal MRI provides critical complementary information for accurate brain tumor segmentation. However, conventional methods struggle when certain modalities are missing due to issues such as image quality, protocol inconsistencies, patient allergies, or financial constraints. To address this, we propose a robust single-modality parallel processing framework that achieves high segmentation accuracy even with incomplete modalities. Leveraging Holder divergence and mutual information, our model maintains modality-specific features while dynamically adjusting network parameters based on the available inputs. By using these divergence- and information-based loss functions, the framework effectively quantifies discrepancies between predictions and ground-truth labels, resulting in consistently accurate segmentation. Extensive evaluations on the BraTS 2018 and BraTS 2020 datasets demonstrate superior performance over existing methods in handling missing modalities.

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