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An efficient 3D reconstruction method based on WT-TV denoising for low-dose CT images

BACKGROUND: In order to reduce the impact of CT radiation, low-dose CT is often used, but low-dose CT will bring more noise, affecting image quality and subsequent 3D reconstruction results. OBJECTIVE: The study presents a reconstruction method based on wavelet transform-total variation (WT-TV) for...

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Detalles Bibliográficos
Autores principales: Liu, Yaoyao, Wang, Chang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: IOS Press 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10200188/
https://www.ncbi.nlm.nih.gov/pubmed/37038798
http://dx.doi.org/10.3233/THC-236040
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author Liu, Yaoyao
Wang, Chang
author_facet Liu, Yaoyao
Wang, Chang
author_sort Liu, Yaoyao
collection PubMed
description BACKGROUND: In order to reduce the impact of CT radiation, low-dose CT is often used, but low-dose CT will bring more noise, affecting image quality and subsequent 3D reconstruction results. OBJECTIVE: The study presents a reconstruction method based on wavelet transform-total variation (WT-TV) for low-dose CT. METHODS: First, the low-dose CT images were denoised using WT and TV denoising methods. The WT method could preserve the features, and the TV method could preserve the edges and structures. Second, the two sets of denoised images were fused so that the features, edges, and structures could be preserved at the same time. Finally, FBP reconstruction was performed to obtain the final 3D reconstruction result. RESULTS: The results show that The WT-TV method can effectively denoise low-dose CT and improve the clarity and accuracy of 3D reconstruction models. CONCLUSION: Compared with other reconstruction methods, the proposed reconstruction method successfully addressed the issue of low-dose CT noising by further denoising the CT images before reconstruction. The denoising effect of low-dose CT images and the 3D reconstruction model were compared via experiments.
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spelling pubmed-102001882023-05-22 An efficient 3D reconstruction method based on WT-TV denoising for low-dose CT images Liu, Yaoyao Wang, Chang Technol Health Care Research Article BACKGROUND: In order to reduce the impact of CT radiation, low-dose CT is often used, but low-dose CT will bring more noise, affecting image quality and subsequent 3D reconstruction results. OBJECTIVE: The study presents a reconstruction method based on wavelet transform-total variation (WT-TV) for low-dose CT. METHODS: First, the low-dose CT images were denoised using WT and TV denoising methods. The WT method could preserve the features, and the TV method could preserve the edges and structures. Second, the two sets of denoised images were fused so that the features, edges, and structures could be preserved at the same time. Finally, FBP reconstruction was performed to obtain the final 3D reconstruction result. RESULTS: The results show that The WT-TV method can effectively denoise low-dose CT and improve the clarity and accuracy of 3D reconstruction models. CONCLUSION: Compared with other reconstruction methods, the proposed reconstruction method successfully addressed the issue of low-dose CT noising by further denoising the CT images before reconstruction. The denoising effect of low-dose CT images and the 3D reconstruction model were compared via experiments. IOS Press 2023-04-28 /pmc/articles/PMC10200188/ /pubmed/37038798 http://dx.doi.org/10.3233/THC-236040 Text en © 2023 – The authors. Published by IOS Press. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial (CC BY-NC 4.0) License (https://creativecommons.org/licenses/by-nc/4.0/) , which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Liu, Yaoyao
Wang, Chang
An efficient 3D reconstruction method based on WT-TV denoising for low-dose CT images
title An efficient 3D reconstruction method based on WT-TV denoising for low-dose CT images
title_full An efficient 3D reconstruction method based on WT-TV denoising for low-dose CT images
title_fullStr An efficient 3D reconstruction method based on WT-TV denoising for low-dose CT images
title_full_unstemmed An efficient 3D reconstruction method based on WT-TV denoising for low-dose CT images
title_short An efficient 3D reconstruction method based on WT-TV denoising for low-dose CT images
title_sort efficient 3d reconstruction method based on wt-tv denoising for low-dose ct images
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10200188/
https://www.ncbi.nlm.nih.gov/pubmed/37038798
http://dx.doi.org/10.3233/THC-236040
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