Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"HR-pQCT"”.
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Using HR-pQCT and finite element analysis to inform clinical assessment of distal radius fractures
… peripheral quantitative computed tomography (HR-pQCT) allows for non-invasive in vivo assessment of bone density and stiffness throughout the fracture healing process, which may inform fracture healing progression and cast removal. Many fracture assessment instruments have been developed for …
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Predicting off-axis bone strength of the distal radius using high-resolution peripheral quantitative computed tomography based finite element modeling
… peripheral quantitative computed tomography (HR-pQCT) images; however, these models are limited because they determine failure load under pure compressive loading conditions and neglect off-axis loads that occur during a fall on an outstretched hand. The objective of this research was to …
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High-Resolution peripheral Quantitative Computed Tomography Based Finite Element Modelling of Distal Radius Strength: Assessing Effect of Heterogeneous Material Properties and Scan Site
… peripheral quantitative computed tomography (HR-pQCT) based finite element (FE) models of distal radius sections explains 66% of variance in experimental testing results on intact forearms under fall configuration testing. However, this FE model employs a somewhat simplistic modeling approach …
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Using finite element models under multiple loading conditions to improve the association between radius and tibia microarchitecture and prevalent osteoporotic vertebral fracture
… peripheral quantitative computed tomography (HR-pQCT) exist between individuals with a prevalent vertebral fracture and healthy controls. As fracture is a result of mechanical failure, FE models of these sites in physiologically relevant loading conditions (compression, torsion, bending) may …
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The potential role of shearing load in the development of toe tip necrosis syndrome
… and control claws. 2. Compare contrast-enhanced HR-pQCT image-based metrics of damage and pathway development of abraded claws, control claws and claws with TTNS. 3. Compare overall stiffness of abraded claws, control claws and claws with TTNS. Abrasion testing was performed on the lateral digit …
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Automated Modelling of Cortical Bone from Clinical CT
… is assessed using simulated QCT data from three simulated phantoms with differing bone architecture, and two paired datasets of ex-vivo QCT and HR-pQCT scans across the proximal femur and the lumbar spine. The simulated data allows for inaccuracies in CBM measurements caused by beam …
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Validation of Subject Specific Computed Tomography-based Finite Element Models of the Human Proximal Tibia using Full-field Experimental Displacement Measurements from Digital Volume Correlation
… methodology for high-resolution peripheral QCT (HR-pQCT) scan acquisition and image processing resulting in low DVC displacement measurement error in long human bones, and 2) apply different density-modulus relationships and material models from the literature to QCT-FE models of the proximal …
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Forearm Loading (FAL) Study: A Recreational Gymnastics Intervention within a Physical Education Setting
… peripheral quantitative computed tomography (HRpQCT) which assessed total bone area (Tt.Ar), cortical area (Ct.Ar), trabecular area (Tb.Ar), bone mineral density (Tt.BMD), cortical thickness (Ct.Th), trabecular bone volume fracture (Tb.BV/TV), trabecular number (Tb.N), and trabecular thickness …
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The role of neuromuscular performance on bone strength and properties in the forearm and lower leg of children
… peripheral quantitative computed tomography (pQCT) and high resolution pQCT (HR-pQCT). Bone mass, density, area and estimated strength were assessed. Muscle area was determined from the pQCT scans and grip strength measured via a handheld dynamometer. Peak force from a single maximal push-up …
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The quantification of pregnancy-induced bone mineral mobilisation in the maternal appendicular skeleton with novel peripheral quantitative computed tomography (pQCT) techniques.
… peripheral quantitative computed tomography (pQCT) techniques. Adaptations in maternal calcium (Ca) economy occur during pregnancy to meet fetal demand and by birth a typical new-born contains 25-30g Ca. At the individual-level if Ca is mobilised it is important to identify where this occurs …
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The muscle-bone in children and adolescents with and without cystic fibrosis
… in children and adolescents as they transition through puberty and who, on a population level, differ in the prevalence of osteoporosis and risk of fracture in later life. This observational study used novel imaging and muscle assessment techniques to measure bone and muscle parameters in White …