Publications by authors named "Tongxue Zhou"

Accurate segmentation of brain tumors across multiple MRI sequences is essential for diagnosis, treatment planning, and clinical decision-making. In this paper, I propose a cutting-edge framework, named multi-modal graph convolution network (M2GCNet), to explore the relationships across different MR modalities, and address the challenge of brain tumor segmentation. The core of M2GCNet is the multi-modal graph convolution module (M2GCM), a pivotal component that represents MR modalities as graphs, with nodes corresponding to image pixels and edges capturing latent relationships between pixels.

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Brain tumor is one of the most aggressive cancers in the world, accurate brain tumor segmentation plays a critical role in clinical diagnosis and treatment planning. Although deep learning models have presented remarkable success in medical segmentation, they can only obtain the segmentation map without capturing the segmentation uncertainty. To achieve accurate and safe clinical results, it is necessary to produce extra uncertainty maps to assist the subsequent segmentation revision.

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Brain tumor is one of the leading causes of cancer death. The high-grade brain tumors are easier to recurrent even after standard treatment. Therefore, developing a method to predict brain tumor recurrence location plays an important role in the treatment planning and it can potentially prolong patient's survival time.

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Multimodal MR brain tumor segmentation is one of the hottest issues in the community of medical image processing. However, acquiring the complete set of MR modalities is not always possible in clinical practice, due to the acquisition protocols, image corruption, scanner availability, scanning cost or allergies to certain contrast materials. The missing information can cause some restraints to brain tumor diagnosis, monitoring, treatment planning and prognosis.

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Magnetic Resonance Imaging (MRI) is a widely used imaging technique to assess brain tumor. Accurately segmenting brain tumor from MR images is the key to clinical diagnostics and treatment planning. In addition, multi-modal MR images can provide complementary information for accurate brain tumor segmentation.

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Article Synopsis
  • The COVID-19 pandemic significantly impacted global public health, highlighting the need for effective diagnosis tools like Computed Tomography (CT).
  • A U-Net based segmentation network with an attention mechanism is proposed to improve the identification of COVID-19 in CT images by enhancing important features for better accuracy.
  • The method shows promising results, achieving rapid segmentation in just 0.29 seconds per CT slice, with notable performance metrics including an 83.1% Dice Score.
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Article Synopsis
  • The paper introduces a deep learning-based 3D brain tumor segmentation network that utilizes multi-sequence MRI datasets in a three-stage process.
  • The first stage involves using a 3D U-Net to generate context constraints for tumor regions, followed by fusing multi-sequence MRIs with an attention mechanism for individual tumor segmentation.
  • A new loss function addresses multiple class segmentation, and a second 3D U-Net refines the predictions, achieving promising results in metrics like dice score and hausdorff distance on the BraTS 2017 dataset.
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