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Attention‐guided duplex adversarial U‐net for pancreatic segmentation from computed tomography images

PURPOSE: Segmenting the organs from computed tomography (CT) images is crucial to early diagnosis and treatment. Pancreas segmentation is especially challenging because the pancreas has a small volume and a large variation in shape. METHODS: To mitigate this issue, an attention‐guided duplex adversa...

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Autores principales: Li, Meiyu, Lian, Fenghui, Li, Yang, Guo, Shuxu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8992955/
https://www.ncbi.nlm.nih.gov/pubmed/35199477
http://dx.doi.org/10.1002/acm2.13537
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author Li, Meiyu
Lian, Fenghui
Li, Yang
Guo, Shuxu
author_facet Li, Meiyu
Lian, Fenghui
Li, Yang
Guo, Shuxu
author_sort Li, Meiyu
collection PubMed
description PURPOSE: Segmenting the organs from computed tomography (CT) images is crucial to early diagnosis and treatment. Pancreas segmentation is especially challenging because the pancreas has a small volume and a large variation in shape. METHODS: To mitigate this issue, an attention‐guided duplex adversarial U‐Net (ADAU‐Net) for pancreas segmentation is proposed in this work. First, two adversarial networks are integrated into the baseline U‐Net to ensure the obtained prediction maps resemble the ground truths. Then, attention blocks are applied to preserve much contextual information for segmentation. The implementation of the proposed ADAU‐Net consists of two steps: 1) backbone segmentor selection scheme is introduced to select an optimal backbone segmentor from three two‐dimensional segmentation model variants based on a conventional U‐Net and 2) attention blocks are integrated into the backbone segmentor at several locations to enhance the interdependency among pixels for a better segmentation performance, and the optimal structure is selected as a final version. RESULTS: The experimental results on the National Institutes of Health Pancreas‐CT dataset show that our proposed ADAU‐Net outperforms the baseline segmentation network by 6.39% in dice similarity coefficient and obtains a competitive performance compared with the‐state‐of‐art methods for pancreas segmentation. CONCLUSION: The ADAU‐Net achieves satisfactory segmentation results on the public pancreas dataset, indicating that the proposed model can segment pancreas outlines from CT images accurately.
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spelling pubmed-89929552022-04-13 Attention‐guided duplex adversarial U‐net for pancreatic segmentation from computed tomography images Li, Meiyu Lian, Fenghui Li, Yang Guo, Shuxu J Appl Clin Med Phys Medical Imaging PURPOSE: Segmenting the organs from computed tomography (CT) images is crucial to early diagnosis and treatment. Pancreas segmentation is especially challenging because the pancreas has a small volume and a large variation in shape. METHODS: To mitigate this issue, an attention‐guided duplex adversarial U‐Net (ADAU‐Net) for pancreas segmentation is proposed in this work. First, two adversarial networks are integrated into the baseline U‐Net to ensure the obtained prediction maps resemble the ground truths. Then, attention blocks are applied to preserve much contextual information for segmentation. The implementation of the proposed ADAU‐Net consists of two steps: 1) backbone segmentor selection scheme is introduced to select an optimal backbone segmentor from three two‐dimensional segmentation model variants based on a conventional U‐Net and 2) attention blocks are integrated into the backbone segmentor at several locations to enhance the interdependency among pixels for a better segmentation performance, and the optimal structure is selected as a final version. RESULTS: The experimental results on the National Institutes of Health Pancreas‐CT dataset show that our proposed ADAU‐Net outperforms the baseline segmentation network by 6.39% in dice similarity coefficient and obtains a competitive performance compared with the‐state‐of‐art methods for pancreas segmentation. CONCLUSION: The ADAU‐Net achieves satisfactory segmentation results on the public pancreas dataset, indicating that the proposed model can segment pancreas outlines from CT images accurately. John Wiley and Sons Inc. 2022-02-24 /pmc/articles/PMC8992955/ /pubmed/35199477 http://dx.doi.org/10.1002/acm2.13537 Text en © 2022 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, LLC on behalf of The American Association of Physicists in Medicine https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Medical Imaging
Li, Meiyu
Lian, Fenghui
Li, Yang
Guo, Shuxu
Attention‐guided duplex adversarial U‐net for pancreatic segmentation from computed tomography images
title Attention‐guided duplex adversarial U‐net for pancreatic segmentation from computed tomography images
title_full Attention‐guided duplex adversarial U‐net for pancreatic segmentation from computed tomography images
title_fullStr Attention‐guided duplex adversarial U‐net for pancreatic segmentation from computed tomography images
title_full_unstemmed Attention‐guided duplex adversarial U‐net for pancreatic segmentation from computed tomography images
title_short Attention‐guided duplex adversarial U‐net for pancreatic segmentation from computed tomography images
title_sort attention‐guided duplex adversarial u‐net for pancreatic segmentation from computed tomography images
topic Medical Imaging
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8992955/
https://www.ncbi.nlm.nih.gov/pubmed/35199477
http://dx.doi.org/10.1002/acm2.13537
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AT lianfenghui attentionguidedduplexadversarialunetforpancreaticsegmentationfromcomputedtomographyimages
AT liyang attentionguidedduplexadversarialunetforpancreaticsegmentationfromcomputedtomographyimages
AT guoshuxu attentionguidedduplexadversarialunetforpancreaticsegmentationfromcomputedtomographyimages