3D Medical Image Segmentation based on multi-scale MPU-Net

• URL: http://arxiv.org/abs/2307.05799v2
• Date: Mon, 24 Jul 2023 19:13:20 GMT
• Title: 3D Medical Image Segmentation based on multi-scale MPU-Net
• Authors: Zeqiu.Yu, Shuo.Han, Ziheng.Song
• Abstract summary: This paper proposes a tumor segmentation model MPU-Net for patient volume CT images. It is inspired by Transformer with a global attention mechanism. Compared with the benchmark model U-Net, MPU-Net shows excellent segmentation results.
• Score: 5.393743755706745
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The high cure rate of cancer is inextricably linked to physicians' accuracy in diagnosis and treatment, therefore a model that can accomplish high-precision tumor segmentation has become a necessity in many applications of the medical industry. It can effectively lower the rate of misdiagnosis while considerably lessening the burden on clinicians. However, fully automated target organ segmentation is problematic due to the irregular stereo structure of 3D volume organs. As a basic model for this class of real applications, U-Net excels. It can learn certain global and local features, but still lacks the capacity to grasp spatial long-range relationships and contextual information at multiple scales. This paper proposes a tumor segmentation model MPU-Net for patient volume CT images, which is inspired by Transformer with a global attention mechanism. By combining image serialization with the Position Attention Module, the model attempts to comprehend deeper contextual dependencies and accomplish precise positioning. Each layer of the decoder is also equipped with a multi-scale module and a cross-attention mechanism. The capability of feature extraction and integration at different levels has been enhanced, and the hybrid loss function developed in this study can better exploit high-resolution characteristic information. Moreover, the suggested architecture is tested and evaluated on the Liver Tumor Segmentation Challenge 2017 (LiTS 2017) dataset. Compared with the benchmark model U-Net, MPU-Net shows excellent segmentation results. The dice, accuracy, precision, specificity, IOU, and MCC metrics for the best model segmentation results are 92.17%, 99.08%, 91.91%, 99.52%, 85.91%, and 91.74%, respectively. Outstanding indicators in various aspects illustrate the exceptional performance of this framework in automatic medical image segmentation.

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