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Showing 1 to 20 of 30 for “"pQCT"”.

  1. Using HR-pQCT and finite element analysis to inform clinical assessment of distal radius fractures

    Spanswick, PhillipSchulich School of Engineering2020

    … 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 …

    calgary Repository record

  2. Sex-specific changes in bone structure and strength during growth: pQCT analysis of the mid-tibia

    Ahamed, YasminUniversity of British Columbia2007

    … difference in the effect of the intervention on pQCT bone outcome variables, both groups were combined for our current study. A total of 183 participants (93 boys, 89 girls) received a pQCT scan at baseline. Results: Sex-specific comparisons of the pQCT bone outcome variables showed significantly …

    ubc Repository record

  3. The quantification of pregnancy-induced bone mineral mobilisation in the maternal appendicular skeleton with novel peripheral quantitative computed tomography (pQCT) techniques.

    Ó Breasail, MícheálUniversity of Cambridge2019

    … 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 …

    cambridge Repository record

  4. Utilizing pQCT and Biomarkers of Bone Turnover to Study Influences of Physical Activity or Bariatric Surgery on Structural and Metabolic Status of Bone

    Creamer, Kyle WilliamVirginia Tech2014

    … the peripheral Quantitative Computed Tomography (pQCT) and Dual-energy X-ray Absorptiometry (DXA) in pre-menopausal women; 2) effects of adjustable gastric banding (AGB) vs. Roux-en-Y gastric bypass (RYGB) surgeries on pQCT and DXA measures; 3) 6-month time course changes on serum biomarkers of …

    vt Repository record

  5. Der Effekt von Dihydrotestosteron, 17 beta Estradiol, Genistein und Equol auf den osteoporotischen Knochen der männlichen Ratte nach Trepanation dargestellt durch das pQCT

    Kunzmann, Tassilo2012

    … Ratte nach Trepanation dargestellt durch das pQCTEinleitung: Immer mehr Männer erkranken durch das zunehmende Alter an Osteoporose. Hohe Knochenbrüchigkeit und erschwerte Frakturheilung sind oft die Folge dieser Erkrankung. In der vorliegenden Arbeit wird die Wirkung von 5- alpha …

    goettingen Repository record

  6. Predicting off-axis bone strength of the distal radius using high-resolution peripheral quantitative computed tomography based finite element modeling

    Bunyamin, AmyUniversity of Saskatchewan2020

    … 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 identify …

    sask Repository record

  7. An Evaluation of 1) Bone Changes Following Bariatric Surgery and 2) Fat and Muscle Indices Assessed by pQCT: Implications for Osteoporosis and Type-2 Diabetes Risk

    Butner, Katrina LindauerVirginia Tech2010

    … of foreleg muscle and fat indices measured by pQCT and to determine predictors of muscle density and type-2 diabetes risk. Subjects: 82 women with varying BMI and physical activity levels. Methods: Subjects had DXA and pQCT bone scans, a fasting blood draw, and completed a 4-day physical …

    vt Repository record

  8. High-Resolution peripheral Quantitative Computed Tomography Based Finite Element Modelling of Distal Radius Strength: Assessing Effect of Heterogeneous Material Properties and Scan Site

    Hosseinitabatabaei, Mahdi 1993-University of Saskatchewan2018

    … 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 in …

    sask Repository record

  9. The role of neuromuscular performance on bone strength and properties in the forearm and lower leg of children

    Bjorkman, KelseyUniversity of Saskatchewan2016

    … 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 …

    sask Repository record

  10. Using finite element models under multiple loading conditions to improve the association between radius and tibia microarchitecture and prevalent osteoporotic vertebral fracture

    George, Jacob KoshyCumming School of Medicine2018

    … 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 …

    calgary Repository record

  11. How do early environment, diet and physical activity interact to determine bone development in young children?

    Cole, Zoë A.University of Southampton2010

    … bone densitometry b) hip structural analysis c) pQCT measurement of the tibia in children born to mothers from the Southampton Women?s Survey.<br/><br/>Methods: Children were recruited at 6 years old from the Southampton Women's Survey. Their mothers? diet, lifestyle and anthropometry had …

    soton Repository record

  12. The potential role of shearing load in the development of toe tip necrosis syndrome

    Hedayati, NassimUniversity of Saskatchewan2023

    … 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 of …

    sask Repository record

  13. Quantitative Knochendichtemessungen an der Scapula als Basis für dreidimensionale Finite-Elemente-Modelle

    Mehling, AndreasUniversität Würzburg

    … Alkohol-Formmalin-Lösung fixiert und mit einem pQCT-Scanner (Stratec XCT 2000)untersucht. Der pQCT-Scanner erlaubt eine selektive, volumenbezogene Bestimmung der kortikalen und spongiösen Bereiche des Knochens. 35 definierte Schnittbilder pro Scapula wurden anschließend auf einem UNIX-System der …

    wurz-thes Repository record

  14. Automated Modelling of Cortical Bone from Clinical CT

    Pearson, Rose AliciaUniversity of Cambridge2017

    … 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 hardening effects to be considered for the first time: I show that beam hardening leads to an underestimation in …

    cambridge Repository record

  15. 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

    Zaluski, Dylan EUniversity of Saskatchewan2021

    … 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 tibia …

    sask Repository record

  16. Quantification of bone using a 3.0 tesla clinical magnetic resonance scanner

    Lazar, Victor RakeshUniversity of Hull2011

    … and peripheral quantitative computed tomography (pQCT).MR acquisition protocols have been successfully optimised for each type of bone region and in-house software has also been created to process the acquired data and quantify various types of structural and chemical properties.The MR data from …

    hull Repository record

  17. The Influence of Physical Activity on Musculoskeletal Characteristics and Fracture Risk at Growth

    Detter, FredrikClinical and Molecular Osteoporosis Research Unit, Clinical Sciences, Malmö.2014

    … we used peripheral computed tomography (pQCT) to assess the appendicular skeleton. The fracture risk was not affected by the intervention, rate ratio 1.12 (0.85, 1.46). Children in the intervention group annually improved their spine BMD more than controls (p<0.05). At follow-up …

    lund Repository record

  18. Association of genotype with bone metabolism, skeletal adaptation and stress fracture injury occurrence

    Varley, INottingham Trent University2014

    … academy footballers was determined using pQCT before and after 12 weeks of increased volume football training. Genetic associations with baseline, post increased training and change in bone characteristics were then determined. Secondly, radiologically confirmed stress fracture history was …

    nott-trent Repository record

  19. The muscle-bone in children and adolescents with and without cystic fibrosis

    riddell, amyUniversity of Cambridge2016

    … peripheral quantitative computed tomography(pQCT), high-resolution pQCT, and jumping mechanography were used to measure bone and muscle outcomes. ANCOVA with Scheffé post hoc and multiple linear regression tests were performed. Data were adjusted according to the research aims and included …

    cambridge Repository record

  20. Verlaufsuntersuchung zu Knochendichteveränderungen bei juveniler Anorexia nervosa und Implikationen für ihre Therapie

    Schuler, SimoneUniversität Würzburg

    … Parametern wurde die Knochendichte mittels pQCT und DEXA bestimmt. Es zeigte sich, dass Knochendichteverluste noch veränderbar waren und die jungen Frauen teilweise eine günstige Knochendichteentwicklung aufwiesen. Positiv wirkte sich vor allem ein günstiger Heilungsverlauf aus. Im Gegensatz …

    wurz-thes Repository record

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