4.5 Article

BTSwin-Unet: 3D U-shaped Symmetrical Swin Transformer-based Network for Brain Tumor Segmentation with Self-supervised Pre-training

Journal

NEURAL PROCESSING LETTERS
Volume 55, Issue 4, Pages 3695-3713

Publisher

SPRINGER
DOI: 10.1007/s11063-022-10919-1

Keywords

3D Swin Transformer; Unet; Tumor segmentation; Self-supervised learning

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This study proposes a BTSwin-Unet network based on Swin Transformer for brain tumor segmentation, with pre-training using a self-supervised learning framework. Extensive experiments validate the model's performance in tumor segmentation tasks, consistently achieving favorable benchmarks.
Medical image automatic segmentation plays an important role in Computer-Aided Diagnosis system. Although convolution-based network has achieved great performance in medical image segmentation, it has limitations in modeling long-range contextual interactions and spatial dependencies. Due to the powerful ability of long-range information interaction of Vision Transformer, Vision Transformer have achieved advanced performance in several downstream tasks via self-supervised learning. In this paper, motivative by Swin Transformer, we proposed BTSwin-Unet, which is a 3D U-shaped symmetrical Swin Transformer-based network for brain tumor segmentation. Moreover, we construct a self-supervised learning framework to pre-train the model encoder through the reconstruction task. Extensive experiments on tumor segmentation tasks validated the performance of our proposed model, and our results consistently demonstrate favorable benchmarks.

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