多尺度融合与注意力结合的头颈部危及器官自动分割

doi:10.3760/cma.j.cn113030-20220128-00047

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Abstract Objective To develop a multi-scale fusion and attention mechanism based image automatic segmentation method of organs at risk (OAR) from head and neck carcinoma radiotherapy. Methods We proposed a new OAR segmentation method for medical images of heads and necks based on the U-Net convolution neural network. Spatial and channel squeeze excitation (csSE) attention block were combined with the U-Net, aiming to enhance the feature expression ability. We also proposed a multi-scale block in the U-Net encoding stage to supplement characteristic information. Dice similarity coefficient (DSC) and 95% Hausdorff distance (HD) were used as evaluation criteria for deep learning performance. Results The segmentation of 22 OAR in the head and neck was performed according to the medical image computing computer assisted intervention (MICCAI) StructSeg2019 dataset. The proposed method improved the average segmentation accuracy by 3%-6% compared with existing methods. The average DSC in the segmentation of 22 OAR in the head and neck was 78.90% and the average 95%HD was 6.23 mm. Conclusion Automatic segmentation of OAR from the head and neck CT using multi-scale fusion and attention mechanism achieves high segmentation accuracy, which is promising for enhancing the accuracy and efficiency of radiotherapy in clinical practice.

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	Articles by authors
	Lin Xiaowei
	Yang Ruijie
	Li Ni
	Qi Qi

Key words： Deep learning Convolutional neural networks Organs at risk image segmentation Attention mechanisms Multi-scale fusion

Received: 28 January 2022

Fund:National Natural Science Foundation of China (11861030); Hainan Provincial Natural Science Foundation of China (2019RC176, 621RC511); the National Key Research and Development Program (2020YFE0202500); Beijing Municipal Commission of Science and Technology Collaborative Innovation Project (Z221100003522028)

Corresponding Authors: Qi Qi,Email: qqi@hainanu.edu.cn; Li Ni, Email: lini@hainnu.edu.cn

Cite this article:

Lin Xiaowei,Yang Ruijie,Li Ni et al. Automatic segmentation of organs at risk in head and neck carcinoma from radiation therapy using multi-scale fusion and attention based mechanisms[J]. Chinese Journal of Radiation Oncology, 2023, 32(4): 319-324.

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http://journal12.magtechjournal.com/Jweb_fszlx/EN/10.3760/cma.j.cn113030-20220128-00047 OR http://journal12.magtechjournal.com/Jweb_fszlx/EN/Y2023/V32/I4/319

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