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Journal of Clinical Densitometry

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https://www.readbyqxmd.com/read/29776736/trabecular-bone-score-at-the-distal-femur-and-proximal-tibia-in-individuals-with-spinal-cord-injury
#1
Stacey Lobos, Anne Cooke, Gillian Simonett, Chester Ho, Steven K Boyd, W Brent Edwards
Rapid declines in bone mineral density (BMD) at the knee after spinal cord injury (SCI) are associated with an increased risk of fracture. Evaluation of bone quality using the trabecular bone score (TBS) may provide a complimentary measure to BMD assessment to examine bone health and fracture risk after SCI. The purpose of this study was to assess bone mineral density (BMD) and trabecular bone score (TBS) at the knee in individuals with and without SCI. Nine individuals with complete SCI (mean time since SCI 2...
April 24, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29785933/a-comparison-of-peripheral-imaging-technologies-for-bone-and-muscle-quantification-a-review-of-segmentation-techniques
#2
REVIEW
Andy Kin On Wong, Sarah Lynn Manske
Musculoskeletal science has developed many overlapping branches, necessitating specialists from 1 area of focus to often require the expertise in others. In terms of imaging, this means obtaining a comprehensive illustration of bone, muscle, and fat tissues. There is currently a lack of a reliable resource for end users to learn about these tissues' imaging and quantification techniques together. An improved understanding of these tissues has been an important progression toward better prediction of disease outcomes and better elucidation of their interaction with frailty, aging, and metabolic disorders...
April 17, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29729949/prevention-of-glucocorticoid-induced-osteoporosis-clinical-audit-to-evaluate-the-implementation-of-national-osteoporosis-guideline-group-2017-guidelines-in-a-primary-care-setting
#3
Matthew Carter
Treatment with glucocorticoids is the leading cause of drug-induced osteoporosis. National Osteoporosis Guideline Group (NOGG) 2017 guidelines advise a case-finding strategy for patients at risk. The aims of the audit were to evaluate the implementation of the NOGG 2017 guidelines for patients receiving long-term glucocorticoid therapy in a suburban general practice, to instigate changes to ensure 90% of patients are investigated and treated appropriately, and to evaluate impact at a 6-mo re-audit. Reporting Analysis and Intelligence Delivering Results (RAIDR) is a health-care intelligence tool accessing primary care clinical data...
April 12, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29703658/lean-soft-tissue-mass-measured-using-dual-energy-x-ray-absorptiometry-is-an-effective-index-for-assessing-change-in-leg-skeletal-muscle-mass-following-exercise-training
#4
Taishi Midorikawa, Megumi Ohta, Suguru Torii, Shizuo Sakamoto
It is difficult to precisely and easily estimate the changes in skeletal muscle mass (SMM) following exercise training. We aimed to assess whether the change in lean soft tissue mass measured using dual-energy X-ray absorptiometry (DXA) reflects the change in SMM measured using magnetic resonance imaging (MRI) following exercise training in both the leg and trunk regions. Anthropometry, DXA, and MRI measurements of the trunk and leg regions were obtained in 10 male college sumo wrestlers before and after exercise training (mean duration between measurements: ~2 yr)...
April 4, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29685494/trabecular-bone-score-is-a-valuable-addition-to-bone-mineral-density-for-bone-quality-assessment-in-older-mexican-american-women-with-type-2-diabetes
#5
Nahid Rianon, Catherine G Ambrose, Maryam Buni, Gordon Watt, Carlos Reyes-Ortiz, Miryoung Lee, Joseph McCormick, Susan Fisher-Hoch
Altered bone quality due to the underlying metabolic changes of type 2 diabetes (T2D) has been hypothesized to affect bone strength, leading to increased fracture risk in patients with T2D. Lumbar spine trabecular bone score (LS-TBS), an indirect measure of trabecular microarchitecture, provides information on bone quality and has been associated with T2D. However, trabecular bone score (TBS) is also affected by demographic patterns and body size, and is expected to be different in people from various ethnic or racial backgrounds...
March 27, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29681438/usefulness-of-reflection-scanning-in-determining-whole-body-composition-in-broadly-built-individuals-using-dual-energy-x-ray-absorptiometry
#6
Andreia V Moço, Catarina N Matias, Diana A Santos, Paulo M Rocha, Cláudia S Minderico, Edilson S Cyrino, Luís B Sardinha, Analiza M Silva
Whole-body composition analysis by dual-energy X-ray absorptiometry (DXA) requires subjects to fit within the width limits of the DXA bed. To overcome this limitation, the aim of this study was to validate a partial scanning technique at which the upper left limb is deliberately left unscanned and measurements are "reflected" from the right-side upper limb. A Hologic Explorer-W densitometer was used in a sample of 189 participants, including athletes and nonathletes, ranging from underweight to obese (body mass index: 17...
March 27, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29680671/vertebral-bone-mineral-density-measured-by-quantitative-computed-tomography-with-and-without-a-calibration-phantom-a-comparison-between-2-different-software-solutions
#7
Josephine Therkildsen, Jesper Thygesen, Simon Winther, My Svensson, Ellen-Margrethe Hauge, Morten Böttcher, Per Ivarsen, Hanne Skou Jørgensen
Quantitative computed tomography (CT) can be used to quantify bone mineral density (BMD) in the spine from clinical CT scans. We aimed to determine agreement and precision of BMD measurements by 2 different methods: phantom-less internal tissue calibration and asynchronous phantom-based calibration in a cohort of patients with chronic kidney disease (CKD). Patients with CKD were recruited for CT angiography of the chest, abdomen, and pelvis. BMD was analyzed by 2 different software solutions using different calibration techniques; phantom-based by QCT Pro (Mindways Inc...
March 27, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29678392/skeletal-status-in-women-with-carpal-tunnel-syndrome-a-1-yr-prospective-study
#8
Aleksander Kisała, Wojciech Pluskiewicz, Piotr Adamczyk
Functional deterioration due to carpal tunnel syndrome (CTS) may influence the bone status of the forearm and hand. The aim of this prospective study was to establish whether CTS has an impact on bone status at distal parts of the upper limb and to monitor the longitudinal changes of that status during a 1-yr follow-up after surgical treatment. Fifteen women with CTS at mean age of 55.13 ± 9.3 yr, mean weight of 79.18 ± 20.37 kg, and mean height of 157.8 ± 6.17 cm were enrolled into the study...
March 27, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29678393/positive-correlations-between-free-vitamin-d-and-bone-variables-in-a-group-of-young-lebanese-women
#9
Abir Alwan, Maroun Rizkallah, Ghassan Maalouf, Joseph Matta, Fabienne Frenn, Angélique Barakat, Falah Bachour, Amer Sebaaly, Abdel-Jalil Berro, Nathalie Al Rassy, Mirza Howayek, Hassane Zouhal, Rawad El Hage
Optimizing bone mass in adulthood is of great importance to prevent the occurrence of osteoporosis in later age. Vitamin D is an essential component of bone health. Low-serum vitamin D is associated with low bone mineral density (BMD), which is an important predictor of fracture risk. However, most cells, apart from renal tubular cells, are exposed to free rather than to total 25-hydroxyvitamin D. Whether free vitamin D would be a better marker than total vitamin D is still under debate. The aim of the present study was to explore the relationships between serum total vitamin D, vitamin D-binding protein (BP), free vitamin D, and bone parameters in a group of young Lebanese women...
March 26, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29754949/interpretation-of-dual-energy-x-ray-absorptiometry-derived-body-composition-change-in-athletes-a-review-and-recommendations-for-best-practice
#10
REVIEW
Karen Hind, Gary Slater, Brian Oldroyd, Matthew Lees, Shane Thurlow, Matthew Barlow, John Shepherd
Dual-energy X-ray absorptiometry (DXA) is a medical imaging device which has become the method of choice for the measurement of body composition in athletes. The objectives of this review were to evaluate published longitudinal DXA body composition studies in athletic populations for interpretation of "meaningful" change, and to propose a best practice measurement protocol. An online search of PubMed and CINAHL via EBSCO Host and Web of Science enabled the identification of studies published until November 2016...
March 23, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29705002/validation-of-peripheral-quantitative-computed-tomography-derived-thigh-adipose-tissue-subcompartments-in-young-girls-using-a-3-t-mri-scanner
#11
Robert M Blew, Vinson R Lee, Jennifer W Bea, Megan C Hetherington-Rauth, Jean-Phillipe Galons, Maria I Altbach, Timothy G Lohman, Scott B Going
The ability to assess skeletal muscle adipose tissue is important given the negative clinical implications associated with greater fat infiltration of the muscle. Computed tomography and magnetic resonance imaging (MRI) are highly accurate for measuring appendicular soft tissue and muscle composition, but have limitations. Peripheral quantitative computed tomography (pQCT) is an alternative that investigators find valuable because of its low radiation, fast scan time, and comparatively lower costs. The present investigation sought to assess the accuracy of pQCT-derived estimates of total, subcutaneous, skeletal muscle, intermuscular, and calculated intramuscular adipose tissue areas, and muscle density in the midthigh of young girls using the gold standard, 3 T MRI, as the criterion...
March 23, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29661685/natural-course-of-local-bone-mineralization-after-treatment-of-benign-or-borderline-bone-tumors-and-cysts-with-a-composite-ceramic-bone-graft-substitute
#12
Peter Frederik Horstmann, Werner Herbert Hettwer, Michael Mørk Petersen
After surgical bone tumor removal, filling of the bone defect is frequently performed using a bone graft or bone graft substitute. During follow-up, precise quantification of changes in bone mineral density, within the treated bone defect, is very difficult using conventional X-ray examinations. The objectives of this study were to characterize the pattern of resorption/biodegradation of a composite calcium sulfate/hydroxyapatite bone graft substitute and to quantify the bone defect healing with repeated dual-energy X-ray absorptiometry (DXA) measurements...
March 23, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29657024/vitamin-d-and-trabecular-bone-score-in-a-group-of-young-lebanese-adults
#13
Abir Alwan, Nathalie Al Rassy, Abdel-Jalil Berro, Maroun Rizkallah, Joseph Matta, Fabienne Frenn, Falah Bachour, Amer Sebaaly, Ghassan Maalouf, Hassane Zouhal, Rawad El Hage
The relationship between vitamin D and trabecular bone score (TBS) in young adults remains unclear. The aim of this study was to explore the relationship between 25-hydroxyvitamin D [25(OH)D] serum levels and TBS in a healthy adult population. A total of 54 men and 61 women whose ages range from 18 to 35 participated in the present study. Participants with 25(OH)D insufficiency (between 21 and 29 ng/mL) were 55.7%, and those with 25(OH)D deficiency (≤20 ng/mL) were 11.4%. TBS positively correlated with 25(OH)D in men (r = 0...
March 23, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29657023/evolutionary-origins-of-the-differences-in-osteoporosis-risk-in-us-populations
#14
REVIEW
Dorothy A Nelson
Over the past 50 years, it has been increasingly evident that there are population differences in bone mass and the risk of osteoporosis. In the United States, many studies have reported a lower prevalence of osteoporosis in African Americans compared with people of European descent. If we trace the trajectory of changes in lifeways from the earliest migrations of early Homo out of Africa over the past two million years or so, to include lower vitamin D levels in higher latitudes; more meat in the diet; increasing sedentism; and a longer lifespan/longer postmenopausal period, it is not surprising that osteoporosis occurs more frequently in populations of European descent...
March 23, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29673651/positive-correlations-between-free-vitamin-d-and-bone-variables-in-a-group-of-young-lebanese-men
#15
LETTER
Abir Alwan, Maroun Rizkallah, Ghassan Maalouf, Joseph Matta, Fabienne Frenn, Abdel-Jalil Berro, Angélique Barakat, Falah Bachour, Amer Sebaaly, Mirza Howayek, Hassane Zouhal, Rawad El Hage
No abstract text is available yet for this article.
March 22, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29661684/trabecular-bone-score-and-hip-structural-analysis-in-patients-with-atypical-femur-fractures
#16
Sanne K C Buitendijk, Denise M van de Laarschot, Alexandra A A Smits, Fjorda Koromani, Fernando Rivadeneira, Thomas J Beck, M Carola Zillikens
Bisphosphonate use has declined dramatically in recent years, partly because of fear of rare side effects like atypical femur fractures (AFFs). It is therefore desirable to have a diagnostic method to identify those at risk of AFF to prevent this serious complication. We compared trabecular microarchitecture and hip geometry between 30 patients with AFF and 141 controls of similar age and sex, using bisphosphonates. Trabecular bone score (TBS) and hip structural analysis (HSA) were used to assess trabecular microarchitecture and macroscopic hip geometry from dual-energy X-ray absorptiometry images of the lumbar spine and hip, respectively...
March 22, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29657026/muscular-maximal-strength-indices-and-bone-variables-in-a-group-of-elderly-women
#17
Riad Nasr, Nathalie Al Rassy, Eric Watelain, Joseph Matta, Fabienne Frenn, Maroun Rizkallah, Ghassan Maalouf, César El Khoury, Abdel-Jalil Berro, Rawad El Hage
The aim of the present study was to explore the relations between muscular maximal strength indices and bone parameters (bone mineral density [BMD], hip geometry indices, and trabecular bone score [TBS]) in a group of elderly women. This study included 35 healthy elderly women whose ages range between 65 and 75 yr (68.1 ± 3.1 yr). BMD (in gram per square centimeter) was determined for each individual by dual-energy X-ray absorptiometry at the whole body, lumbar spine (L1-L4), total hip (TH), and femoral neck (FN)...
March 22, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29681439/bone-mineral-density-distribution-curves-in-spanish-adults-with-down-syndrome
#18
Ramón Costa, Alejandra Gullón, Rosa De Miguel, Diego Real de Asúa, Azucena Bautista, Clara García, Carmen Suarez, Santos Castañeda, Fernando Moldenhauer
According to reports from small-sized case series, adults with Down syndrome (DS) appear to have lower bone mineral density (BMD) than the general population. The objective of our study was to further characterize the bone mass acquisition curve in an adult DS population. This is a retrospective study of 297 adults with DS from the Adult Down Syndrome Outpatient Clinic of a tertiary care hospital in Madrid, Spain, who underwent a bone densitometry (Hologic QDR-4500W), for clinical purposes between January 2010 and June 2015...
March 21, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29661688/effect-of-positioning-of-the-roi-on-bmd-of-the-forearm-and-its-subregions
#19
Elizabeth O Rosen, Elizabeth A McNamara, LaTarsha G Whittaker, Alan O Malabanan, Harold N Rosen
Inconsistent positioning of patients and region of interest (ROI) is known to influence the precision of bone mineral density (BMD) measurements in the spine and hip. However, it is unknown whether minor shifts in the positioning of the ROI along the shaft of the radius affect the measurement of forearm BMD and its subregions. The ultradistal (UD-), mid-, one-third, and total radius BMDs of 50 consecutive clinical densitometry patients were acquired. At baseline the distal end of the ROI was placed at the tip of the ulnar styloid as usual, and then the forearm was reanalyzed 10 more times, each time shifting the ROI 1 mm proximally...
March 21, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29661687/impact-of-weight-loss-with-intragastric-balloon-on-bone-density-and-microstructure-in-obese-adults
#20
Eduardo Madeira, Miguel Madeira, Erika Paniago Guedes, Thiago Thomaz Mafort, Rodrigo Oliveira Moreira, Laura Maria Carvalho de Mendonça, Inayá Correa Barbosa Lima, Leonardo Vieira Neto, Paulo Roberto Alves de Pinho, Agnaldo José Lopes, Maria Lucia Fleiuss Farias
The historical concept that obesity protects against bone fractures has been questioned. Weight loss appears to reduce bone mineral density (BMD); however, the results in young adults are inconsistent, and data on the effects of weight loss on bone microstructure are limited. This study aimed to evaluate the impact of weight loss using an intragastric balloon (IGB) on bone density and microstructure. Forty obese patients with metabolic syndrome (mean age 35.1 ± 7.3 yr) used an IGB continuously for 6 mo...
March 21, 2018: Journal of Clinical Densitometry
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