نتایج جستجو برای: dxa.

تعداد نتایج: 2855  

Journal: :Meat science 2009
K L Pearce M Ferguson G Gardner N Smith J Greef D W Pethick

Fifty merino wethers (liveweight range from 44 to 81kg, average of 58.6kg) were lot fed for 42d and scanned through a dual X-ray absorptiometry (DXA) as both a live animal and whole carcass (carcass weight range from 15 to 32kg, average of 22.9kg) producing measures of total tissue, lean, fat and bone content. The carcasses were subsequently boned out into saleable cuts and the weights and yiel...

Journal: :iranian journal of radiation research 0
m.r. salamat department of medical physics and medical engineering, isfahan university of medical sciences, isfahan, iran n. rostampour department of medical physics, medical school, hamadan university of medical sciences, hamadan, iran sh.j. zofaghari azad university, najafabad unit, najafabad, iran h. hoseyni-panah department of orthopedic, azad university, najafabad unit, najafabad, iran m. javdan department of orthopedic, isfahan university of medical sciences, isfahan, iran

background: the singh index is an inexpensive simple method to evaluate bone density, commonly used to assess osteoporosis is based on the radiological appearance of the trabecular bone structure of the proximal femur on a plain antero-posterior (ap) radiograph. the purpose of this study was to compare between singh index and bone mineral density measurement using dual energy x-ray absorptiomet...

2016
Denise L. Demmer Lawrence J. Beilin Beth Hands Sally Burrows Craig E. Pennell Stephen J. Lye Jennifer A. Mountain Trevor A. Mori

BACKGROUND AND AIMS Assessment of adiposity using dual energy x-ray absorptiometry (DXA) has been considered more advantageous in comparison to anthropometry for predicting cardio-metabolic risk in the older population, by virtue of its ability to distinguish total and regional fat. Nonetheless, there is increasing uncertainty regarding the relative superiority of DXA and little comparative dat...

2006
Kevin E. Wilson

New fan-beam DXA systems can detect vertebral fractures with fast, low-dose lateral scans of the vertebra from T4 to L4 in as little as 10 seconds. Vertebral fractures are the most common fracture in osteoporosis and an indication for treatment irrespective of Bone Mineral Density [1-3]. However, without a diagnostic test such as that available on fan-beam DXA systems, as many as 75% of vertebr...

Journal: :The Netherlands journal of medicine 2014
C van Casteren-Messidoro A M Huisman E Birnie M van Gelder F E van de Geijn P Hamberg

OBJECTIVE Androgen deprivation therapy (ADT) puts patients at an increased risk of developing osteoporosis. Assessment of bone mineral density (BMD) is most commonly performed by dual energy X-ray absorptiometry (DXA). Alternative ways of estimating BMD, such as quantitative ultrasound (QUS) measurement of the heel, are explored as DXA is expensive, non-portable and uses ionising radiation. We ...

2010
Lidwien Graat-Verboom Martijn A. Spruit Ben E. E. M. van den Borne Frank W. J. M. Smeenk Emiel F. M. Wouters

Background. Osteoporosis is an extrapulmonary effect of chronic obstructive pulmonary disease (COPD). Diagnosis of osteoporosis is based on BMD measured by DXA-scan. The best location for BMD measurement in COPD has not been determined. Aim of this study was to assess whole-body BMD and BMD of the hip and lumbar spine (local DXA) in COPD patients and compare the prevalence of osteoporosis at th...

Journal: :Journal of animal science 1998
A D Mitchell A M Scholz V G Pursel C M Evock-Clover

Dual-energy x-ray absorptiometry (DXA) was used as a noninvasive method to measure the composition of pig carcasses. A total of 181 half-carcasses (10 to 51 kg, from pigs slaughtered at approximately 30, 60, 90, and 120 kg) were scanned using a Lunar (Madison, WI) DPX-L densitometer. The DXA measurements of fat, lean, bone mineral, and total tissue mass were compared with chemical analysis for ...

2009
ALVA D. MITCHELL ARMIN M. SCHOLZ

In three separate studies (156 pigs total), dual-energy X-ray absorptiometry (DXA), bioelectrical impedance (BIA) and ultrasound were compared as methods for measuring live body composition of pigs at 60 and 100-110 kg BWt. DXA measured total body fat and lean content, BIA measurements of resistance (Rs) and reactance (Xc) were used to calculate total body lean mass and ultrasound measurements ...

Journal: :The Journal of clinical endocrinology and metabolism 2005
Tishya A L Wren Xiaodong Liu Pisit Pitukcheewanont Vicente Gilsanz

The effect that growth has on dual-energy x-ray absorptiometry (DXA) bone measurements is yet to be fully defined. The purpose of this study was to determine the best method for optimizing pediatric bone measurements using DXA. Height, weight, body mass index, skeletal age, and Tanner stage of sexual development were determined for 64 healthy boys and 60 healthy girls ages 6-17 yr. DXA of the l...

Journal: :Cleveland Clinic Journal of Medicine 2020

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