RA-UNet: A Hybrid Deep Attention-Aware Network to Extract Liver and Tumor in CT Scans

Automatic extraction of liver and tumor from CT volumes is a challenging task due to their heterogeneous and diffusive shapes. Recently, 2D deep convolutional neural networks have become popular in medical image segmentation tasks because of the utilization of large labeled datasets to learn hierarc...

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Main Authors: Qiangguo Jin, Zhaopeng Meng, Changming Sun, Hui Cui, Ran Su
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-12-01
Series:Frontiers in Bioengineering and Biotechnology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fbioe.2020.605132/full
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author Qiangguo Jin
Qiangguo Jin
Zhaopeng Meng
Zhaopeng Meng
Changming Sun
Hui Cui
Ran Su
author_facet Qiangguo Jin
Qiangguo Jin
Zhaopeng Meng
Zhaopeng Meng
Changming Sun
Hui Cui
Ran Su
author_sort Qiangguo Jin
collection DOAJ
description Automatic extraction of liver and tumor from CT volumes is a challenging task due to their heterogeneous and diffusive shapes. Recently, 2D deep convolutional neural networks have become popular in medical image segmentation tasks because of the utilization of large labeled datasets to learn hierarchical features. However, few studies investigate 3D networks for liver tumor segmentation. In this paper, we propose a 3D hybrid residual attention-aware segmentation method, i.e., RA-UNet, to precisely extract the liver region and segment tumors from the liver. The proposed network has a basic architecture as U-Net which extracts contextual information combining low-level feature maps with high-level ones. Attention residual modules are integrated so that the attention-aware features change adaptively. This is the first work that an attention residual mechanism is used to segment tumors from 3D medical volumetric images. We evaluated our framework on the public MICCAI 2017 Liver Tumor Segmentation dataset and tested the generalization on the 3DIRCADb dataset. The experiments show that our architecture obtains competitive results.
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spelling doaj.art-4d387d15936740dbbe066027e63f9c0f2022-12-21T22:33:23ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852020-12-01810.3389/fbioe.2020.605132605132RA-UNet: A Hybrid Deep Attention-Aware Network to Extract Liver and Tumor in CT ScansQiangguo Jin0Qiangguo Jin1Zhaopeng Meng2Zhaopeng Meng3Changming Sun4Hui Cui5Ran Su6School of Computer Software, College of Intelligence and Computing, Tianjin University, Tianjin, ChinaCSIRO Data61, Sydney, NSW, AustraliaSchool of Computer Software, College of Intelligence and Computing, Tianjin University, Tianjin, ChinaTianjin University of Traditional Chinese Medicine, Tianjin, ChinaCSIRO Data61, Sydney, NSW, AustraliaDepartment of Computer Science and Information Technology, La Trobe University, Melbourne, VIC, AustraliaSchool of Computer Software, College of Intelligence and Computing, Tianjin University, Tianjin, ChinaAutomatic extraction of liver and tumor from CT volumes is a challenging task due to their heterogeneous and diffusive shapes. Recently, 2D deep convolutional neural networks have become popular in medical image segmentation tasks because of the utilization of large labeled datasets to learn hierarchical features. However, few studies investigate 3D networks for liver tumor segmentation. In this paper, we propose a 3D hybrid residual attention-aware segmentation method, i.e., RA-UNet, to precisely extract the liver region and segment tumors from the liver. The proposed network has a basic architecture as U-Net which extracts contextual information combining low-level feature maps with high-level ones. Attention residual modules are integrated so that the attention-aware features change adaptively. This is the first work that an attention residual mechanism is used to segment tumors from 3D medical volumetric images. We evaluated our framework on the public MICCAI 2017 Liver Tumor Segmentation dataset and tested the generalization on the 3DIRCADb dataset. The experiments show that our architecture obtains competitive results.https://www.frontiersin.org/articles/10.3389/fbioe.2020.605132/fullmedical image segmentationtumor segmentationu-netresidual learningattention mechanism
spellingShingle Qiangguo Jin
Qiangguo Jin
Zhaopeng Meng
Zhaopeng Meng
Changming Sun
Hui Cui
Ran Su
RA-UNet: A Hybrid Deep Attention-Aware Network to Extract Liver and Tumor in CT Scans
Frontiers in Bioengineering and Biotechnology
medical image segmentation
tumor segmentation
u-net
residual learning
attention mechanism
title RA-UNet: A Hybrid Deep Attention-Aware Network to Extract Liver and Tumor in CT Scans
title_full RA-UNet: A Hybrid Deep Attention-Aware Network to Extract Liver and Tumor in CT Scans
title_fullStr RA-UNet: A Hybrid Deep Attention-Aware Network to Extract Liver and Tumor in CT Scans
title_full_unstemmed RA-UNet: A Hybrid Deep Attention-Aware Network to Extract Liver and Tumor in CT Scans
title_short RA-UNet: A Hybrid Deep Attention-Aware Network to Extract Liver and Tumor in CT Scans
title_sort ra unet a hybrid deep attention aware network to extract liver and tumor in ct scans
topic medical image segmentation
tumor segmentation
u-net
residual learning
attention mechanism
url https://www.frontiersin.org/articles/10.3389/fbioe.2020.605132/full
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