Results 31 to 40 of about 621,423 (276)

Opportunistic hip fracture risk prediction in Men from X-ray: Findings from the Osteoporosis in Men (MrOS) Study [PDF]

open access: yes, 2022
Osteoporosis is a common disease that increases fracture risk. Hip fractures, especially in elderly people, lead to increased morbidity, decreased quality of life and increased mortality. Being a silent disease before fracture, osteoporosis often remains undiagnosed and untreated.
arxiv   +1 more source

Anabolic resistance does not explain sarcopenia in patients with type 2 diabetes mellitus, compared with healthy controls, despite reduced mTOR pathway activity [PDF]

open access: yes, 2016
BackgroundAgeing and type 2 diabetes mellitus (T2DM) are risk factors for skeletal muscle loss. We investigated whether anabolic resistance to feeding might underlie accelerated muscle loss in older people with T2DM and whether dysregulated mTOR ...
Babraj, John   +3 more
core   +4 more sources

Irreversible bone loss in osteomalacia. Comparison of radial photon absorptiometry with iliac bone histomorphometry during treatment.

open access: yesJournal of Clinical Investigation, 1985
We examined the relationships between the changes in bone mineral deficit in the radius, determined by single-energy photon absorptiometry at standard proximal and distal sites, and in the ilium, determined by bone histomorphometry, during the treatment ...
A. Parfitt   +5 more
semanticscholar   +1 more source

Enhanced photon shielding efficiency of a flexible and lightweight rare earth/polymer composite: A Monte Carlo simulation study

open access: yesNuclear Engineering and Technology, 2020
Photons with the energy of 60 keV are regularly used for some kinds of bone density examination devices, like the single photon absorptiometry (SPA). This article reports a flexible and lightweight rare earth/polymer composite for enhancing shielding ...
Ying Wang   +5 more
doaj  

Relationship between chronic kidney disease and sarcopenia

open access: yesScientific Reports, 2021
Few studies have investigated the relationship between sarcopenia and mild to moderate renal decline. This study aimed to investigate the relationship between chronic kidney disease (CKD) and sarcopenia.
Ming-Dian Yu   +8 more
doaj   +1 more source

Fat to Muscle Ratio Measurements with Dual Energy X Ray Absorbtiometry [PDF]

open access: yes, 2014
Accurate measurement of the fat-to-muscle ratio in animal model is important for obesity research. An efficient way to measure the fat to muscle ratio in animal model using dual-energy absorptiometry is presented in this paper. A radioactive source exciting x-ray fluorescence from a target material is used to provide the two x-ray energies needed.
arxiv   +1 more source

Semi-Supervised Learning for Bone Mineral Density Estimation in Hip X-ray Images [PDF]

open access: yesarXiv, 2021
Bone mineral density (BMD) is a clinically critical indicator of osteoporosis, usually measured by dual-energy X-ray absorptiometry (DEXA). Due to the limited accessibility of DEXA machines and examinations, osteoporosis is often under-diagnosed and under-treated, leading to increased fragility fracture risks. Thus it is highly desirable to obtain BMDs
arxiv  

Photon-Counting CT Material Decomposition in Bone Imaging

open access: yesJournal of Imaging, 2023
The accurate screening of osteoporosis is important for identifying persons at risk. The diagnosis of bone conditions using dual X-ray absorptiometry is limited to extracting areal bone mineral density (BMD) and fails to provide any structural ...
Abhisek Bhattarai   +3 more
doaj   +1 more source

BMD-GAN: Bone mineral density estimation using x-ray image decomposition into projections of bone-segmented quantitative computed tomography using hierarchical learning [PDF]

open access: yesarXiv, 2022
We propose a method for estimating the bone mineral density (BMD) from a plain x-ray image. Dual-energy X-ray absorptiometry (DXA) and quantitative computed tomography (QCT) provide high accuracy in diagnosing osteoporosis; however, these modalities require special equipment and scan protocols.
arxiv  

Body composition in patients with rheumatoid arthritis: a narrative literature review

open access: yesTherapeutic Advances in Musculoskeletal Disease, 2021
There is growing interest in the alterations in body composition (BC) that accompany rheumatoid arthritis (RA). The purpose of this review is to (i) investigate how BC is currently measured in RA patients, (ii) describe alterations in body composition in
Jean-Guillaume Letarouilly   +4 more
doaj   +1 more source

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