Bone mineral density measurements on cortical and trabecular specimens: Validation of a densitometric calibration protocol for in-vitro micro-CT

Bone ◽  
2011 ◽  
Vol 48 ◽  
pp. S179
Author(s):  
L. Mecozzi ◽  
R. Stoico ◽  
S. Tassani ◽  
F. Particelli ◽  
F. Baruffaldi ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Micro Ct ◽  
Mineral Density ◽  
Density Measurements ◽  
Calibration Protocol

VALIDATION OF A BONE MINERAL DENSITY CALIBRATION PROTOCOL FOR MICRO-COMPUTED TOMOGRAPHY

2017 ◽  
Vol 17 (01) ◽  
pp. 1750015
Author(s):  
FABIO BARUFFALDI ◽  
ROSSELLA STOICO ◽  
SIMONE TASSANI ◽  
LAURA MECOZZI ◽  
STEFANO FALCIONI ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Bone Mineral Density ◽  
Trabecular Bone ◽  
Bone Mineral ◽  
Bone Structure ◽  
Tissue Type ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Mineral Density ◽  
Calibration Protocol

Micro-computed tomography (micro-CT) is widely used for in vitro studies to characterize bone structure at the resolution of 10–100 microns. However, a densitometric calibration protocol is necessary to convert the X-ray attenuation coefficient provided by micro-CT in bone mineral density (BMD). The lastest one has an important role to improve the accuracy of subject-specific finite element models. This work presents a simple calibration protocol based on the use of solid hydroxyapatite phantoms with the correction of the beam hardening effect. The method was validated in comparison to ashing measures of cortical and trabecular human bone. In addition, bone samples tissue mineral density (TMD) was calculated with two different methods. The correlation between ash density and BMD was linear both for cortical ([Formula: see text]) and trabecular bone ([Formula: see text]). The analysis stratified by tissue type versus the pooled analysis confirmed the validity of a common linear model for both types of tissue ([Formula: see text]). Despite its simplicity, the correlation obtained in this work does not depend on the acquisition settings of the micro-CT. TMD was shown to be dependent on the tissue investigated, with values in the range of 1.15–1.21[Formula: see text]mg/mm3 for trabecular bone, and 1.19–1.29[Formula: see text]mg/mm3 for cortical bone. Results are of some interest for generating micro finite elements models.

scholarly journals Bone Mineral Density Measurements: Are they Worth While?

1996 ◽  
Vol 89 (8) ◽  
pp. 457-461 ◽  
Author(s):  
D J Torgerson ◽  
C Donaldson ◽  
D M Reid
Keyword(s):  
Bone Mineral Density ◽  
Bone Density ◽  
Bone Mineral ◽  
Diagnostic Tool ◽  
Screening Tool ◽  
Density Measurement ◽  
Bone Density Measurement ◽  
Mineral Density ◽  
Density Measurements ◽  
Bone Mineral Measurements

Bone mineral density measurements have been criticized on the grounds that they are not a worth-while screening tool. In this paper we argue that bone mineral measurements can be an efficient diagnostic tool even if they are not of proven value for screening. There is complex relationship between the costs of a measurement, the intervention and the predictive value of the test all of which must be accounted for when assessing the value of a bone density measurement. For bone density measurements to be used for screening, a wider evaluation needs to be undertaken compared with that for their use as a diagnostic tool. We address some common objections, for example, that low compliance with screening would undermine efficiency, and show that these are not relevant. Evaluations of screening need to address issues that are likely to affect efficiency.

Comparison of different models for interpreting bone mineral density measurements using DXA and MRI technology

Bone ◽  
1995 ◽  
Vol 17 (2) ◽  
pp. 157-159 ◽  
Author(s):  
H. Kröger ◽  
P. Vainio ◽  
J. Nieminen ◽  
A. Kotaniemi
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Mineral Density ◽  
Density Measurements

Micro‐CT analysis of the Lisfranc complex reveals higher bone mineral density in dorsal compared to plantar regions

2021 ◽  
Author(s):  
Melissa R. Requist ◽  
Yantarat Sripanich ◽  
Tim Rolvien ◽  
Amy L. Lenz ◽  
Alexej Barg
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Micro Ct ◽  
Mineral Density ◽  
Ct Analysis

scholarly journals Secular Trend Of Lumbar And Femur Bone Mineral Density Measurements In Women Above 50 Over 10 Years

2018 ◽  
Vol 4 (4) ◽  
pp. S13-S14
Author(s):  
Jae-Sun Park ◽  
Im-Jeong Na ◽  
Jung-Hwa Shin ◽  
Kwang-Yoon Kim ◽  
Sung-Won Yang ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Secular Trend ◽  
Mineral Density ◽  
Density Measurements ◽  
Femur Bone
Sign in / Sign up

Export Citation Format

Share Document