Group of Chemistry of Advanced Materials (GQMat) - Department of Analytical Chemistry and Physic-chemistry, Federal University of Ceará - UFC, Fortaleza, Brazil.
Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, Brazil.
Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção, Brazil.
Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 China.
Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 China.
Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 China.
Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 China.
Although dual X-ray absorptiometry (DXA) has been used to determine total body volume, using DXA to determine regional (i.e., arm and leg) volumes needs further assessment. Thus, the aim of the presen...
A total of 30 males and females (Age: 25.9 ± 4.0 yrs; Height: 1.75 ± 0.10 m; Weight: 70.98 ± 14.02 kg) underwent one whole body DXA scan, underwater weighing, and regional measures of volume via water...
DXA-derived total body volume was not significantly (p = 0.999) different from total body volume measured via total body water displacement. In addition, both arm and leg regional DXA-derived volume w...
The DXA may be used as valid method for estimating total and regional body volume. Thus, these results expand the DXA's capabilities and potentially allow for a convenient regional four-compartment mo...
Dual X-ray absorptiometry (DXA) software allows for total and regional (i.e., arms and legs) assessment of body composition, with recent advancements allowing for DXA derived volume. The use of DXA de...
A total of 30 males and females underwent one whole body DXA scan, underwater weighing, total and regional bioelectrical impedance spectroscopy, and regional measures of water displacement. Manually c...
Arm and leg regional DXA derived four-compartment model for fat mass (p = 0.999, both arm and leg), fat-free mass (p = 0.999, both arm and leg), and percent fat (arm: p = 0.766; leg: p = 0.938) were n...
The DXA can be used to create four-compartment model for estimating total and regional fat mass, fat-free mass, and percent fat. Therefore, these results allow for a convenient regional four-compartme...
The gold standard for diagnosing metabolic bone disease in pediatrics is dual-energy x-ray absorptiometry (DXA). Bone quantitative ultrasound (QUS) has increasing applications. This study compared the...
Prospective observational study of preterm infants ≤32 weeks gestation or ≤1800 grams at birth. DXA scans measuring bone mineral content (BMC) and tibial QUS scans measuring bone speed of sound (SOS) ...
41 infants had bone scans at mean corrected gestation 37.7 ± 2.1 weeks. BMC and SOS showed weak inverse correlation (R...
A statistically significant weak inverse correlation between DXA and QUS was observed. QUS may have advantages over DXA....
Our purpose was to study the body composition in a healthy female Moroccan adult group, and to help physicians to evaluate nutritional status....
Five hundred and nineteen healthy women aged from 20 to 80 years were included in the study. Bone mineral density at the hip and lumbar spine and the body composition parameters were measured by dual-...
The mean age of the population was 53.14 ± 13.69 years with an average BMI of 29.30 ± 5.04 kg/m2. Means of FM and FFM were 33.93 ± 9.18 kg and 36.91 ± 5 kg, respectively, with FM and FFMI of 13.65 ± 3...
This is the first Moroccan study to present body composition indexes in healthy Moroccan female adults. These reference values may be useful for the clinical evaluation of body composition and nutriti...
Lipedema is a poorly known condition. Diagnosis is based almost exclusively on clinical criteria, which may be subjective and not always reliable. This study aimed to investigate regional body composi...
This study is a single-center case-control study performed at Lausanne University Hospital, Switzerland. Women with clinically diagnosed lipedema underwent regional BC assessment by DXA. The control g...
We included 222 women (74 with lipedema and 148 controls). Overall, the mean age was 41 years (standard deviation [SD] 11), and mean BMI was 30.9 kg/m2 (SD 7.6). A statistically significant difference...
BC assessment by DXA, and particularly calculation of the leg FM/total FM index, is a simple tool that may help clinicians rule out lipedema in doubtful cases....
The low exposures, unique x-ray beam geometry, and scanning design in dual-energy x-ray absorptiometry (DXA) make measurement and quality-control strategies different from traditional x-ray equipment....
Four Hologic DXA scanners at two institutions and all four available scan modes were tested. EAK was measured directly by three types of Radcal dose sensors: 60-cc pancake ion-chamber (IC), 180-cc pan...
Dose sensor variations in EAK were minimal, with a -3.5 ± 3.5% (mean ±95% PI) percent difference between the two sizes of IC's. The solid-state detector produced highly similar measurements to the 180...
It is feasible to quantify DXA scanner stability using EAK as a quality-control metric with a variety of solid-state and IC dose sensors, and the scan length used is not critical. Although vendor-repo...
a) To evaluate the accuracy of the pre-existing equations (based on cm2 provided by CT images), to estimate in kilograms (Kg) the body composition (BC) in patients with obesity (PwO), by comparison wi...
Single-centre cross-sectional study including consecutive PwO, matched by gender with subjects with normal BMI. All the subjects underwent BC assessment by Dual-energy X-ray absorptiometry (DXA) and s...
70 subjects (46 PwO and 24 with normal BMI) were recruited. Significant correlations for BC were obtained between the three models and DXA. Model 3 showed the strongest correlation with DXA (r= 0.926,...
This is the first study showing that the BC assessment based on skeletal CT images analyzed by automatic software coupled with artificial intelligence, is accurate in PwO, by comparison with DXA. Furt...
Celiac disease is a risk factor for osteopenia and osteoporosis. Our aim was to evaluate the possible correlation between villous atrophy extension and dual-energy X-ray absorptiometry (DXA)-derived p...
We have retrospectively analyzed data of 47 celiac patients (36 women, 52 ± 14 years of age) who underwent video capsule endoscopy and DXA scans within 1 year of interval from 2006 to 2019. Quantitati...
. Patients were divided into three categories; the first included those with no lesions at video capsule endoscopy (23 patients), the second those with typical lesions (mucosal atrophy, mosaicism and ...
Neither endoscopic nor histological atrophy itself can explain the deterioration of bone mineralization and structure, whereas atrophy extension appeared to be responsible for bone impairment....
Scanner mismatch occurs frequently with follow-up dual-energy x-ray absorptiometry (DXA) scans. Nearly one-in-five follow-up DXA scans were conducted on non-cross-calibrated scanners (scanner mismatch...
Detecting significant changes in bone mineral density (BMD) with dual-energy x-ray absorptiometry (DXA) scanners relies on the least significant change (LSC). Results from two different DXA scanners c...
All patients who completed at least two DXA scans between 1 April 2009 and 31 December 2018 in the province of Alberta, Canada, were identified using population-based health services databases. Scanne...
A total of 264,866 patients with 470,641 follow-up DXA scans were identified. Scanner mismatch occurred in 18.9% of follow-up DXA scans; 28.7% of patients experienced at least one scanner mismatch. Lo...
Scanner mismatch is a common problem, occurring in one-in-five follow-up DXA scans and affecting more than a quarter of patients. Interventions to reduce this large proportion of scanner mismatch are ...
Sarcopenia is becoming prevalent in an increasing number of older adults undergoing total knee replacement (TKR) surgery. Metal implants may overestimate lean mass (LM) measured using dual-energy X-ra...
