A lightweight hierarchical convolution network for brain tumor segmentation

Abstract Background Brain tumor segmentation plays a significant role in clinical treatment and surgical planning. Recently, several deep convolutional networks have been proposed for brain tumor segmentation and have achieved impressive performance. However, most state-of-the-art models use 3D conv...

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Main Authors: Yuhu Wang, Yuzhen Cao, Jinqiu Li, Hongtao Wu, Shuo Wang, Xinming Dong, Hui Yu
Format: Article
Language:English
Published: BMC 2022-12-01
Series:BMC Bioinformatics
Subjects:
Online Access:https://doi.org/10.1186/s12859-022-05039-5
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author Yuhu Wang
Yuzhen Cao
Jinqiu Li
Hongtao Wu
Shuo Wang
Xinming Dong
Hui Yu
author_facet Yuhu Wang
Yuzhen Cao
Jinqiu Li
Hongtao Wu
Shuo Wang
Xinming Dong
Hui Yu
author_sort Yuhu Wang
collection DOAJ
description Abstract Background Brain tumor segmentation plays a significant role in clinical treatment and surgical planning. Recently, several deep convolutional networks have been proposed for brain tumor segmentation and have achieved impressive performance. However, most state-of-the-art models use 3D convolution networks, which require high computational costs. This makes it difficult to apply these models to medical equipment in the future. Additionally, due to the large diversity of the brain tumor and uncertain boundaries between sub-regions, some models cannot well-segment multiple tumors in the brain at the same time. Results In this paper, we proposed a lightweight hierarchical convolution network, called LHC-Net. Our network uses a multi-scale strategy which the common 3D convolution is replaced by the hierarchical convolution with residual-like connections. It improves the ability of multi-scale feature extraction and greatly reduces parameters and computation resources. On the BraTS2020 dataset, LHC-Net achieves the Dice scores of 76.38%, 90.01% and 83.32% for ET, WT and TC, respectively, which is better than that of 3D U-Net with 73.50%, 89.42% and 81.92%. Especially on the multi-tumor set, our model shows significant performance improvement. In addition, LHC-Net has 1.65M parameters and 35.58G FLOPs, which is two times fewer parameters and three times less computation compared with 3D U-Net. Conclusion Our proposed method achieves automatic segmentation of tumor sub-regions from four-modal brain MRI images. LHC-Net achieves competitive segmentation performance with fewer parameters and less computation than the state-of-the-art models. It means that our model can be applied under limited medical computing resources. By using the multi-scale strategy on channels, LHC-Net can well-segment multiple tumors in the patient’s brain. It has great potential for application to other multi-scale segmentation tasks.
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spelling doaj.art-e6efe4b41b414a2383cf9e031aa7df2a2022-12-22T03:54:25ZengBMCBMC Bioinformatics1471-21052022-12-0122S511810.1186/s12859-022-05039-5A lightweight hierarchical convolution network for brain tumor segmentationYuhu Wang0Yuzhen Cao1Jinqiu Li2Hongtao Wu3Shuo Wang4Xinming Dong5Hui Yu6Tianjin International Engineering Institute, Tianjin UniversityDepartment of Biomedical Engineering, Tianjin Key Laboratory of Biomedical Detecting Techniques and Instruments, Tianjin UniversityTianjin International Engineering Institute, Tianjin UniversityDepartment of Biomedical Engineering, Tianjin Key Laboratory of Biomedical Detecting Techniques and Instruments, Tianjin UniversityDepartment of Biomedical Engineering, Tianjin Key Laboratory of Biomedical Detecting Techniques and Instruments, Tianjin UniversityTianjin Rehabilitation Convalescent CenterDepartment of Biomedical Engineering, Tianjin Key Laboratory of Biomedical Detecting Techniques and Instruments, Tianjin UniversityAbstract Background Brain tumor segmentation plays a significant role in clinical treatment and surgical planning. Recently, several deep convolutional networks have been proposed for brain tumor segmentation and have achieved impressive performance. However, most state-of-the-art models use 3D convolution networks, which require high computational costs. This makes it difficult to apply these models to medical equipment in the future. Additionally, due to the large diversity of the brain tumor and uncertain boundaries between sub-regions, some models cannot well-segment multiple tumors in the brain at the same time. Results In this paper, we proposed a lightweight hierarchical convolution network, called LHC-Net. Our network uses a multi-scale strategy which the common 3D convolution is replaced by the hierarchical convolution with residual-like connections. It improves the ability of multi-scale feature extraction and greatly reduces parameters and computation resources. On the BraTS2020 dataset, LHC-Net achieves the Dice scores of 76.38%, 90.01% and 83.32% for ET, WT and TC, respectively, which is better than that of 3D U-Net with 73.50%, 89.42% and 81.92%. Especially on the multi-tumor set, our model shows significant performance improvement. In addition, LHC-Net has 1.65M parameters and 35.58G FLOPs, which is two times fewer parameters and three times less computation compared with 3D U-Net. Conclusion Our proposed method achieves automatic segmentation of tumor sub-regions from four-modal brain MRI images. LHC-Net achieves competitive segmentation performance with fewer parameters and less computation than the state-of-the-art models. It means that our model can be applied under limited medical computing resources. By using the multi-scale strategy on channels, LHC-Net can well-segment multiple tumors in the patient’s brain. It has great potential for application to other multi-scale segmentation tasks.https://doi.org/10.1186/s12859-022-05039-5Brain tumor segmentationLightweight networkDeep learningConvolutional neural network
spellingShingle Yuhu Wang
Yuzhen Cao
Jinqiu Li
Hongtao Wu
Shuo Wang
Xinming Dong
Hui Yu
A lightweight hierarchical convolution network for brain tumor segmentation
BMC Bioinformatics
Brain tumor segmentation
Lightweight network
Deep learning
Convolutional neural network
title A lightweight hierarchical convolution network for brain tumor segmentation
title_full A lightweight hierarchical convolution network for brain tumor segmentation
title_fullStr A lightweight hierarchical convolution network for brain tumor segmentation
title_full_unstemmed A lightweight hierarchical convolution network for brain tumor segmentation
title_short A lightweight hierarchical convolution network for brain tumor segmentation
title_sort lightweight hierarchical convolution network for brain tumor segmentation
topic Brain tumor segmentation
Lightweight network
Deep learning
Convolutional neural network
url https://doi.org/10.1186/s12859-022-05039-5
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