Multimodal high-grade glioma semantic segmentation network with multi-scale and multi-attention fusion mechanism.
10.7507/1001-5515.202103021
- Author:
Yuchao WU
1
;
Lan LIN
1
;
Shuicai WU
1
Author Information
1. Department of Biomedical Engineering, Faculty of Environment and Life Sciences, Beijing University of Technology, Intelligent Physiological Measurement and Clinical Translation, Beijing International Base for Scientific and Technological Cooperation, Beijing 100124, P. R. China.
- Publication Type:Journal Article
- Keywords:
Attention mechanism;
Convolutional neural network;
High-grade glioma segmentation;
Multi-scale feature
- MeSH:
Attention;
Glioma/diagnostic imaging*;
Humans;
Magnetic Resonance Imaging/methods*;
Semantics
- From:
Journal of Biomedical Engineering
2022;39(3):433-440
- CountryChina
- Language:Chinese
-
Abstract:
Glioma is a primary brain tumor with high incidence rate. High-grade gliomas (HGG) are those with the highest degree of malignancy and the lowest degree of survival. Surgical resection and postoperative adjuvant chemoradiotherapy are often used in clinical treatment, so accurate segmentation of tumor-related areas is of great significance for the treatment of patients. In order to improve the segmentation accuracy of HGG, this paper proposes a multi-modal glioma semantic segmentation network with multi-scale feature extraction and multi-attention fusion mechanism. The main contributions are, (1) Multi-scale residual structures were used to extract features from multi-modal gliomas magnetic resonance imaging (MRI); (2) Two types of attention modules were used for features aggregating in channel and spatial; (3) In order to improve the segmentation performance of the whole network, the branch classifier was constructed using ensemble learning strategy to adjust and correct the classification results of the backbone classifier. The experimental results showed that the Dice coefficient values of the proposed segmentation method in this article were 0.909 7, 0.877 3 and 0.839 6 for whole tumor, tumor core and enhanced tumor respectively, and the segmentation results had good boundary continuity in the three-dimensional direction. Therefore, the proposed semantic segmentation network has good segmentation performance for high-grade gliomas lesions.
