4.6 Article

A transformer-based generative adversarial network for brain tumor segmentation

Journal

FRONTIERS IN NEUROSCIENCE
Volume 16, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fnins.2022.1054948

Keywords

generative adversarial network; transformer; deep learning; automatic segmentation; brain tumor

Categories

Funding

  1. National Natural Science Foundation of China
  2. Capital Medical Funds for Health Improvement and Research
  3. [82170374]
  4. [82202139]
  5. [CHF2020-1-1053]

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In this paper, we propose a novel transformer-based generative adversarial network for automated brain tumor segmentation. By utilizing transformer blocks and Resnet in the generator, as well as incorporating multi-scale L-1 loss in the discriminator, our approach achieves promising performance in medical image segmentation tasks.
Brain tumor segmentation remains a challenge in medical image segmentation tasks. With the application of transformer in various computer vision tasks, transformer blocks show the capability of learning long-distance dependency in global space, which is complementary to CNNs. In this paper, we proposed a novel transformer-based generative adversarial network to automatically segment brain tumors with multi-modalities MRI. Our architecture consists of a generator and a discriminator, which is trained in min-max game progress. The generator is based on a typical U-shaped encoder-decoder architecture, whose bottom layer is composed of transformer blocks with Resnet. Besides, the generator is trained with deep supervision technology. The discriminator we designed is a CNN-based network with multi-scale L-1 loss, which is proved to be effective for medical semantic image segmentation. To validate the effectiveness of our method, we conducted exclusive experiments on BRATS2015 dataset, achieving comparable or better performance than previous state-of-the-art methods. On additional datasets, including BRATS2018 and BRATS2020, experimental results prove that our technique is capable of generalizing successfully.

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