A Digital Model to Simulate Effects of Bone Architecture Variations on Texture at Spatial Resolutions of CT, HR-pQCT, and μCT Scanners

Overview

Journal J Med Eng

Specialty Biomedical Engineering

Date 2016 Mar 24

PMID 27006936

Citations 2

Authors

T Lowitz

O Museyko

V Bousson

W A Kalender

J-D Laredo

K Engelke

Affiliations

Soon will be listed here.

Abstract

The quantification of changes in the trabecular bone structure induced by musculoskeletal diseases like osteoarthritis, osteoporosis, rheumatoid arthritis, and others by means of a texture analysis is a valuable tool which is expected to improve the diagnosis and monitoring of a disease. The reaction of texture parameters on different alterations in the architecture of the fine trabecular network and inherent imaging factors such as spatial resolution or image noise has to be understood in detail to ensure an accurate and reliable determination of the current bone state. Therefore, a digital model for the quantitative analysis of cancellous bone structures was developed. Five parameters were used for texture analysis: entropy, global and local inhomogeneity, local anisotropy, and variogram slope. Various generic structural changes of cancellous bone were simulated for different spatial resolutions. Additionally, the dependence of the texture parameters on tissue mineralization and noise was investigated. The present work explains changes in texture parameter outcomes based on structural changes originating from structure modifications and reveals that a texture analysis could provide useful information for a trabecular bone analysis even at resolutions below the dimensions of single trabeculae.

Citing Articles

Advanced Knee Structure Analysis (AKSA): a comparison of bone mineral density and trabecular texture measurements using computed tomography and high-resolution peripheral quantitative computed tomography of human knee cadavers.

Lowitz T, Museyko O, Bousson V, Chappard C, Laouisset L, Laredo J Arthritis Res Ther. 2017; 19(1):1.

PMID: 28073368 PMC: 5223490. DOI: 10.1186/s13075-016-1210-z.

Characterization of knee osteoarthritis-related changes in trabecular bone using texture parameters at various levels of spatial resolution-a simulation study.

Lowitz T, Museyko O, Bousson V, Kalender W, Laredo J, Engelke K Bonekey Rep. 2014; 3:615.

PMID: 25512855 PMC: 4260445. DOI: 10.1038/bonekey.2014.110.

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