Exploring the Possibility of Measuring Vertebrae Bone Structure Metrics Using MDCT Images: An Unpaired Image-to-Image Translation Method

Bone structure metrics are vital for the evaluation of vertebral bone strength. However, the gold standard for measuring bone structure metrics, micro-Computed Tomography (micro-CT), cannot be used in vivo, which hinders the early diagnosis of fragility fractures. This paper used an unpaired image-t...

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Main Authors: Dan Jin, Han Zheng, Huishu Yuan
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Bioengineering
Subjects:
Online Access:https://www.mdpi.com/2306-5354/10/6/716
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author Dan Jin
Han Zheng
Huishu Yuan
author_facet Dan Jin
Han Zheng
Huishu Yuan
author_sort Dan Jin
collection DOAJ
description Bone structure metrics are vital for the evaluation of vertebral bone strength. However, the gold standard for measuring bone structure metrics, micro-Computed Tomography (micro-CT), cannot be used in vivo, which hinders the early diagnosis of fragility fractures. This paper used an unpaired image-to-image translation method to capture the mapping between clinical multidetector computed tomography (MDCT) and micro-CT images and then generated micro-CT-like images to measure bone structure metrics. MDCT and micro-CT images were scanned from 75 human lumbar spine specimens and formed training and testing sets. The generator in the model focused on learning both the structure and detailed pattern of bone trabeculae and generating micro-CT-like images, and the discriminator determined whether the generated images were micro-CT images or not. Based on similarity metrics (i.e., SSIM and FID) and bone structure metrics (i.e., bone volume fraction, trabecular separation and trabecular thickness), a set of comparisons were performed. The results show that the proposed method can perform better in terms of both similarity metrics and bone structure metrics and the improvement is statistically significant. In particular, we compared the proposed method with the paired image-to-image method and analyzed the pros and cons of the method used.
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spelling doaj.art-986942a8b7ce4c8f8749dc45cb471a692023-11-18T09:21:46ZengMDPI AGBioengineering2306-53542023-06-0110671610.3390/bioengineering10060716Exploring the Possibility of Measuring Vertebrae Bone Structure Metrics Using MDCT Images: An Unpaired Image-to-Image Translation MethodDan Jin0Han Zheng1Huishu Yuan2Department of Radiology, Peking University Third Hospital, Beijing 100191, ChinaSchool of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, ChinaDepartment of Radiology, Peking University Third Hospital, Beijing 100191, ChinaBone structure metrics are vital for the evaluation of vertebral bone strength. However, the gold standard for measuring bone structure metrics, micro-Computed Tomography (micro-CT), cannot be used in vivo, which hinders the early diagnosis of fragility fractures. This paper used an unpaired image-to-image translation method to capture the mapping between clinical multidetector computed tomography (MDCT) and micro-CT images and then generated micro-CT-like images to measure bone structure metrics. MDCT and micro-CT images were scanned from 75 human lumbar spine specimens and formed training and testing sets. The generator in the model focused on learning both the structure and detailed pattern of bone trabeculae and generating micro-CT-like images, and the discriminator determined whether the generated images were micro-CT images or not. Based on similarity metrics (i.e., SSIM and FID) and bone structure metrics (i.e., bone volume fraction, trabecular separation and trabecular thickness), a set of comparisons were performed. The results show that the proposed method can perform better in terms of both similarity metrics and bone structure metrics and the improvement is statistically significant. In particular, we compared the proposed method with the paired image-to-image method and analyzed the pros and cons of the method used.https://www.mdpi.com/2306-5354/10/6/716micro-CT-like imagesunpaired image-to-image translationvertebraebone structure
spellingShingle Dan Jin
Han Zheng
Huishu Yuan
Exploring the Possibility of Measuring Vertebrae Bone Structure Metrics Using MDCT Images: An Unpaired Image-to-Image Translation Method
Bioengineering
micro-CT-like images
unpaired image-to-image translation
vertebrae
bone structure
title Exploring the Possibility of Measuring Vertebrae Bone Structure Metrics Using MDCT Images: An Unpaired Image-to-Image Translation Method
title_full Exploring the Possibility of Measuring Vertebrae Bone Structure Metrics Using MDCT Images: An Unpaired Image-to-Image Translation Method
title_fullStr Exploring the Possibility of Measuring Vertebrae Bone Structure Metrics Using MDCT Images: An Unpaired Image-to-Image Translation Method
title_full_unstemmed Exploring the Possibility of Measuring Vertebrae Bone Structure Metrics Using MDCT Images: An Unpaired Image-to-Image Translation Method
title_short Exploring the Possibility of Measuring Vertebrae Bone Structure Metrics Using MDCT Images: An Unpaired Image-to-Image Translation Method
title_sort exploring the possibility of measuring vertebrae bone structure metrics using mdct images an unpaired image to image translation method
topic micro-CT-like images
unpaired image-to-image translation
vertebrae
bone structure
url https://www.mdpi.com/2306-5354/10/6/716
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AT huishuyuan exploringthepossibilityofmeasuringvertebraebonestructuremetricsusingmdctimagesanunpairedimagetoimagetranslationmethod