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Using Micro-CT Derived Bone Microarchitecture to Analyze Bone Stiffness – A Case Study on Osteoporosis Rat Bone

Overview of attention for article published in Frontiers in endocrinology, May 2015
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Title
Using Micro-CT Derived Bone Microarchitecture to Analyze Bone Stiffness – A Case Study on Osteoporosis Rat Bone
Published in
Frontiers in endocrinology, May 2015
DOI 10.3389/fendo.2015.00080
Pubmed ID
Authors

Yuchin Wu, Samer Adeeb, Michael R. Doschak

Abstract

Micro-computed tomography (Micro-CT) images can be used to quantitatively represent bone geometry through a range of computed attenuation-based parameters. Nonetheless, those parameters remain indirect indices of bone microarchitectural strength and require further computational tools to interpret bone structural stiffness and potential for mechanical failure. Finite element analysis (FEA) can be applied to measure trabecular bone stiffness and potentially predict the location of structural failure in preclinical animal models of osteoporosis, although that procedure from image segmentation of Micro-CT derived bone geometry to FEA is often challenging and computationally expensive, resulting in failure of the model to build. Notably, the selection of resolution and threshold for bone segmentation are key steps that greatly affect computational complexity and validity. In the following study, we evaluated an approach whereby Micro-CT derived grayscale attenuation and segmentation data guided the selection of trabecular bone for analysis by FEA. We further correlated those FEA results to both two- and three-dimensional bone microarchitecture from sham and ovariectomized (OVX) rats (n = 10/group). A virtual cylinder of vertebral trabecular bone 40% in length from the caudal side was selected for FEA, because Micro-CT based image analysis indicated the largest differences in microarchitecture between the two groups resided there. Bone stiffness was calculated using FEA and statistically correlated with the three-dimensional values of bone volume/tissue volume, bone mineral density, fractal dimension, trabecular separation, and trabecular bone pattern factor. Our method simplified the process for the assessment of trabecular bone stiffness by FEA from Micro-CT images and highlighted the importance of bone microarchitecture in conferring significantly increased bone quality capable of resisting failure due to increased mechanical loading.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 101 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 101 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 23 23%
Student > Master 16 16%
Student > Bachelor 15 15%
Student > Doctoral Student 7 7%
Student > Postgraduate 4 4%
Other 10 10%
Unknown 26 26%
Readers by discipline Count As %
Engineering 20 20%
Medicine and Dentistry 20 20%
Agricultural and Biological Sciences 8 8%
Biochemistry, Genetics and Molecular Biology 6 6%
Pharmacology, Toxicology and Pharmaceutical Science 3 3%
Other 12 12%
Unknown 32 32%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 May 2015.
All research outputs
#20,657,128
of 25,374,917 outputs
Outputs from Frontiers in endocrinology
#6,735
of 13,013 outputs
Outputs of similar age
#206,121
of 280,290 outputs
Outputs of similar age from Frontiers in endocrinology
#39
of 57 outputs
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