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Journal of Clinical Densitometry

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https://www.readbyqxmd.com/read/28988694/do-textiles-impact-dxa-bone-density-or-body-composition-results
#1
E Siglinsky, N Binkley, D Krueger
External artifacts can confound dual-energy X-ray absorptiometry (DXA) measurements. It is often accepted that garments free of metal do not affect DXA results; however, little data exist in this regard. It is plausible that some textiles absorb radiation and thereby alter DXA results. We hypothesized that some dense or synthetic textiles, for example, reflective materials, might alter DXA-measured bone and soft tissue mass. Hologic and GE Lunar spine phantoms and a Bioclinica prototype total body phantom were imaged on a GE Lunar iDXA and Prodigy densitometer...
October 5, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28965704/reversing-the-relationship-between-dual-energy-x-ray-absorptiometry-and-the-4-component-model-with-1-sign-flip
#2
LETTER
Bennett K Ng, Markus J Sommer, John A Shepherd
No abstract text is available yet for this article.
September 28, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28958825/evaluation-of-different-screening-tools-for-predicting-femoral-neck-osteoporosis-in-rural-south-indian-postmenopausal-women
#3
Kripa Elizabeth Cherian, Nitin Kapoor, Sahana Shetty, Dukhabandhu Naik, Nihal Thomas, Thomas V Paul
The measurement of bone mineral density by dual-energy X-ray absorptiometry scan is the "gold standard" for the diagnosis of osteoporosis, which has limited availability in many parts of India. This study was done to assess the diagnostic performance of 6 internationally validated tools (Simple Calculated Osteoporosis Risk Estimation [SCORE], age, bulk, one or never estrogen [ABONE], Osteoporosis Risk Assessment Instrument [ORAI] and Osteoporosis Self-Assessment Tool for Asians [OSTA], Fracture Risk Assessment Tool [FRAX®], and calcaneal quantitative ultrasound [QUS]) for the diagnosis of osteoporosis at the femoral neck (FN)...
September 25, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28943183/quantitative-ultrasound-of-the-mandible-as-a-novel-screening-approach-for-osteoporosis
#4
Anna Beattie, Seán Cournane, Ciarán Finucane, J Bernard Walsh, Leo F A Stassen
This study used an axial transmission quantitative ultrasound (QUS) device to assess mandibular bone strength. The aim of the study was first to establish the precision and repeatability of the axial transmission QUS measurement for a range of mandibular anatomic sites, and second to investigate the ability of the modality to differentiate between osteoporotic subjects and a control group. Three groups of adult Caucasian women were recruited: (1) healthy premenopausal women (n = 26), (2) healthy postmenopausal women (n = 48), and (3) women with osteoporosis (n = 53)...
September 21, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28918227/bone-remodeling-of-the-distal-femur-after-uncemented-total-knee-arthroplasty-a-2-year-prospective-dxa-study
#5
Mikkel Rathsach Andersen, Nikolaj S Winther, Thomas Lind, Henrik M Schrøder, Michael Mørk Petersen
Loss of bone stock as a response to the bone trauma, immobilization, and stress shielding related to joint replacement surgery increases the risk of fracture of the distal femur after total knee arthroplasty. Previous studies of uncemented femoral components have reported very high levels of bone loss in the distal femur. This study investigates the adaptive bone remodeling of the distal femur after uncemented total knee arthroplasty. We performed a 2-year follow-up of 53 patients (mean age 61.5 [38-70] years, F/M = 27/26, body mass index 29...
September 13, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28893468/chinese-herbal-medicine-for-osteoporosis-a-meta-analysis-of-randomized-controlled-trials
#6
REVIEW
Yong-Xiang Jin, Peng Wu, Yi-Fan Mao, Bo Wang, Jia-Feng Zhang, Wen-Liang Chen, Zhong Liu, Xiao-Lin Shi
Osteoporosis is a major public health problem in the elderly population. Several studies have suggested that Chinese herbal medicine has antiosteoporotic activities that might be beneficial for osteoporosis. This study aimed to assess the effectiveness of Chinese herbal medicine in osteoporosis patients. We comprehensively searched for randomized controlled trials (until December 2016) that compared Chinese herbal medicine with Western medicine in adults with osteoporosis and reported bone mineral densities (BMDs)...
September 8, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28843432/withdrawn-association-of-baseline-body-composition-with-incomplete-immune-response-after-highly-active-antiretroviral-therapy-in-chinese-hiv-infected-adults
#7
Pengtao Sun, Wei Yu, Taisheng Li, Qiang Lin, Fuping Guo, Xiaohong Zhou, Guiying Du, Ying Xu, Wenmin Guan
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
August 31, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28826886/risk-factors-for-fractures-identified-in-the-algorithm-developed-in-5-year-follow-up-of-postmenopausal-women-from-rac-ost-pol-study
#8
P Adamczyk, A Werner, M Bach, J Żywiec, A Czekajło, W Grzeszczak, B Drozdzowska, W Pluskiewicz
The aim of the study was to establish factors with an impact on fracture risk and to develop an algorithm to predict osteoporotic fracture. A total of 978 postmenopausal women from the epidemiological, population-based RAC-OST-POL study with a mean age of 65.7 ± 7.3 years were enrolled. At baseline, bone mineral density at hip and clinical risk factors for fracture were collected. Afterward, each person was asked annually on fracture incidence in the 5-year follow-up. Finally, data for complete 5-year observation were gathered for the group of 802 patients...
August 17, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28807473/water-treatment-by-magnetic-field-increases-bone-mineral-density-of-rats
#9
Geraldo Balieiro Neto, Jair Rodini Engracia Filho, Bruna Rezende Silva Martins de Oliveira, Cássia Maria Molinaro Coelho, Lilian Francisco Arantes de Souza, Mario Jefferson Quirino Louzada
Water treatment using a magnetic field is an attractive but controversial issue with regard to its effects on human health. This study aimed to investigate the effects of water treatment using a magnetic field on the bone mineral density (BMD), bone mineral content (BMC), bone area (BA), bone resistance (BR), blood gas analysis, blood viscosity, and blood biochemical profile of rats. Forty-eight Wistar rats were divided into 2 groups: control (n = 24) and magnetic water-treated (n = 24). Each of these groups was subdivided into 3 groups to evaluate 3 consumption periods (15, 30, and 45 d)...
August 11, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28802981/errors-in-patient-positioning-for-bone-mineral-density-assessment-by-dual-x-ray-absorptiometry-effect-of-technologist-retraining
#10
Sasivimol Promma, Chanika Sritara, Saowanee Wipuchwongsakorn, Krisanat Chuamsaamarkkee, Chirawat Utamakul, Wichana Chamroonrat, Arpakorn Kositwattanarerk, Yoch Anongpornjossakul, Kanungnij Thamnirat, Boonsong Ongphiphadhanakul
Improper positioning is one of the factors that can lead to incorrect bone mineral density (BMD) results. This study aimed to assess the frequencies of erroneous positioning during three periods: before retraining of the technologists (BR), after retraining (AR), and at the current timepoint 8 years after retraining (C). The BMD images of the first 150 consecutive patients who underwent DXA of the lumbar spine and hip during each of the three periods were retrospectively reviewed. Patients were excluded if they had severe scoliosis, rendering proper positioning impossible...
August 9, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28801168/please-don-t-move-evaluating-motion-artifact-from-peripheral-quantitative-computed-tomography-scans-using-textural-features
#11
Timo Rantalainen, Paola Chivers, Belinda R Beck, Sam Robertson, Nicolas H Hart, Sophia Nimphius, Benjamin K Weeks, Fleur McIntyre, Beth Hands, Aris Siafarikas
Most imaging methods, including peripheral quantitative computed tomography (pQCT), are susceptible to motion artifacts particularly in fidgety pediatric populations. Methods currently used to address motion artifact include manual screening (visual inspection) and objective assessments of the scans. However, previously reported objective methods either cannot be applied on the reconstructed image or have not been tested for distal bone sites. Therefore, the purpose of the present study was to develop and validate motion artifact classifiers to quantify motion artifact in pQCT scans...
August 8, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28784276/role-of-apoe-gene-in-bone-mineral-density-and-incidence-of-bone-fractures-in-brazilian-postmenopausal-women
#12
Leticia S Souza, Neuza Felix Rochette, Diego França Pedrosa, Rafaella P Lopes Magnago, Teodiano B Freire Filho, Fernando Luiz H Vieira, Irani do Carmo F Fin, Sergio R Eis, Jones B Graceli, Leticia B A Rangel, Ian V Silva
Osteoporosis is one of the major diseases that affects mostly postmenopausal women. Despite being a multifactorial disease, some genes have been shown to play an important role in osteoporosis. Bone mineral density (BMD) is still largely used to diagnose it, although many other biomarkers are used to better follow the disease onset. It has been shown that the apolipoprotein E (APOE) gene could be a biomarker for risk of fractures as well as to predict lower BMD in patients with osteoporosis. The human APOE gene encodes 3 protein isoforms called ApoE2, ApoE3, and ApoE4, resulting in 4 possible genotypes, because they are a product of a single nucleotide polymorphism found in this gene...
August 4, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28781230/fracture-risk-assessment-tool-frax%C3%A2-results-calculated-with-and-without-bone-mineral-density-values-for-the-evaluation-of-fracture-risk-in-postmenopausal-women-with-osteopenia
#13
Ahmet Imerci, Cem Yalın Kılınç, Nevres Hurriyet Aydogan, Mustafa Nazım Karalezli, Ahmet Savran
The aim of this study was to evaluate the agreement between fracture risk predictions based on calculations made with and without bone mineral density (BMD) values using the Fracture Risk Assessment Tool (FRAX®) in Turkish postmenopausal women with osteopenia and to compare the treatment recommendations. This descriptive, cross-sectional study included postmenopausal women aged 50-79 yr with a diagnosis of osteoporosis who were not receiving any treatment. A questionnaire was administered to the participants face-to-face to obtain sociodemographic characteristics, medical history, and fracture history...
August 3, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28781229/height-loss-was-associated-with-osteoporosis-in-korean-elderly-men-not-in-women-the-korea-national-health-and-nutrition-examination-survey-2008-2010
#14
Kyung-Sik Ahn, Chang Ho Kang, Sung Bum Cho, Kyung-Hwan Cho, Kyung-Do Han, Yong-Gyu Park, Yang-Hyun Kim
The degree of height loss varies among individuals, and excessive height loss can be a vertebral fracture or bone loss manifestation. The objective of this study was to examine the relationships between height loss and bone mineral density (BMD) and to assess the prevalence of osteoporosis according to the height loss quartiles. Data from the Korea National Health and Nutrition Examination Survey were analyzed. A total of 2799 participants more than 60 years old were included and subdivided into quartiles according to height loss (Q1-Q4)...
August 3, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28781228/assessment-of-the-bone-mineral-content-in-the-mandible-by-dual-energy-x-ray-absorptiometry-to-evaluate-short-term-change
#15
Yun Sun, Min Min An, Jingmei Wang, Fan Yang, Liying He, Chad A Dudzek, Congjin Liu, Patrick C Cunniff, Xingdang Liu, Tom V Sanchez
With the objective of being able to assess response to disease or clinical treatment, the densitometry community has long sought the ability to assess short-term change in bone density. The mandible, known to have a high bone turnover, an increased vascularity, and a greater susceptibility to osteoclastic and osteoblastic activities, has long been suggested but has fallen short as a site from which to monitor an early change in the response to a treatment or a disease. The current study developed a method to assess bone density in the superimposed left and right mandibles...
August 3, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28756995/an-investigation-into-the-differences-in-bone-density-and-body-composition-measurements-between-2-ge-lunar-densitometers-and-their-comparison-to-a-4-component-model
#16
Laura P E Watson, Michelle C Venables, Peter R Murgatroyd
We describe a study to assess the precision of the GE Lunar iDXA and the agreement between the iDXA and GE Lunar Prodigy densitometers for the measurement of regional- and total-body bone and body composition in normal to obese healthy adults. We compare the whole-body fat mass by dual-energy X-ray absorptiometry (DXA) to measurements by a 4-component (4-C) model. Sixty-nine participants, aged 37 ± 12 yr, with a body mass index of 26.2 ± 5.1 kg/cm(2), were measured once on the Prodigy and twice on the iDXA...
July 27, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28756994/dual-energy-x-ray-absorptiometry-predictors-of-vertebral-deformities-in-beta-thalassemia-major
#17
Giangiacomo Osella, Adriano Massimiliano Priola, Sandro Massimo Priola, Antonio Piga, Filomena Longo, Massimo Ventura, Giuseppe Bentivegna, Alberto Angeli, Andrea Veltri, Massimo Terzolo
Vertebral fractures in beta-thalassemia major are increasingly found because of the longer life expectancy of patients, with a major negative impact on their quality of life. We performed a retrospective cross-sectional study to investigate the prevalence of vertebral deformities in thalassemic patients and to identify their best dual-energy X-ray absorptiometry (DXA) predictor among trabecular bone score (TBS), bone mineral density (BMD), and Z-score. Eighty-two outpatients with beta-thalassemia major on regular conventional treatment were studied at a single academic center...
July 27, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28739080/tools-for-enhancement-and-quality-improvement-of-peer-assessment-and-clinical-care-in-endocrinology-and-metabolism
#18
REVIEW
Aliya Khan, Anne Kenshole, Shereen Ezzat, Jeannette Goguen, Karen Gomez-Hernandez, Robert A Hegele, Robyn Houlden, Tisha Joy, Erin Keely, Donald Killinger, André Lacroix, Sheila Laredo, Ally P H Prebtani, M Z Shrayyef, Chris Tran, Stan Van Uum, Rhoda Reardon, Antiope Papageorgiou, William Tays, Merrill Edmonds
Members of the College of Physicians and Surgeons of Ontario Endocrinology and Metabolism Peer Review Network have been involved in a quality improvement project to help standardize the peer assessment of physicians practicing in endocrinology and metabolism. This has included developing state-of-the-art summaries of common endocrine problems by Canadian experts in endocrinology and metabolism. These tools have been developed in response to the educational needs, as identified by peer reviewers, of practicing endocrinologists in Ontario...
July 21, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28732577/cross-calibration-of-the-ge-prodigy-and-idxa-for-the-measurement-of-total-and-regional-body-composition-in-adults
#19
Brian Oldroyd, Laura Treadgold, Karen Hind
Dual-energy X-ray absorptiometry (DXA) body composition measurements are widely performed in both clinical and research settings, and enable the rapid and noninvasive estimation of total and regional fat and lean mass tissues. DXA upgrading can occur during longitudinal monitoring or study; therefore, cross calibration of old and new absorptiometers is required. We compared soft tissue estimations from the GE Prodigy (GE Healthcare, Madison, WI) with the more recent iDXA (GE Healthcare) and developed translational equations to enable Prodigy values to be converted to iDXA values...
July 18, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28712983/older-age-and-higher-body-mass-index-are-associated-with-a-more-degraded-trabecular-bone-score-compared-to-bone-mineral-density
#20
Young Ho Shin, Hyun Sik Gong, Kyung Jae Lee, Goo Hyun Baek
Trabecular bone score (TBS) may detect subjects with a more degraded microarchitecture but whose bone mineral density (BMD) reflects normal or osteopenia. The purpose of this study was to evaluate whether age and body sizes were associated with the discordance between BMD and TBS. We analyzed BMD and TBS in 1505 Korean women over 40 yr of age who had no history of osteoporotic fractures or conditions that affect bone metabolism. We considered 3 groups to have TBS values that reflected a more degraded TBS than their BMD values: (1) normal BMD but partially degraded TBS, (2) normal BMD but degraded TBS, and (3) osteopenia but degraded TBS...
July 13, 2017: Journal of Clinical Densitometry
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