hrp0082p1-d3-52 | Bone (1) | ESPE2014

Opposing Effects of Childhood Obesity on Radial and Tibial Bone Microstructure

Dimitri Paul , Jacques Richard , Paggiosi Margaret , King David , Walsh Jennifer , Bishop Nick , Eastell Richard

Background: Bone mass is low in obese children when measured by conventional techniques. However, these imaging modalities cannot quantify alterations in bone microstructure and strength. High resolution peripheral quantitative computed tomography (HRpQCT – isotropic voxel size 82 mm) provides the resolution required to determine 3-dimensional in-vivo bone microstructure; microfinite element (microFE) analysis of HRpQCT images provides insight into skeletal biome...

hrp0084fc2.6 | Bone & Mineral Metabolism | ESPE2015

A Contextual Feature-Based Recognition Approach to Quantify Trabecular Microstructure Using 1.5T Axial-MRI: An Innovative Methodology

Dimitri Paul , Lekadir Karim , Hoogendoorn Corne , Armitage Paul , Whitby Elspeth , King David , Eastell Richard , Frangi Alejandro

Background: In-vivo skeletal MRI imaging remains challenging due to the extremely short MR relaxation times (<1 ms) of protons bound to water in bone. However, each MRI sequence contains properties identifiable through feature-based recognition, highlighting characteristics relating to skeletal configuration. We thus present a novel statistical method for clinical 1.5 Tesla (T) MRI in quantifying trabecular microstructure and use HRpQCT to determine its accuracy.<...