The IAEA assists its Member States in their efforts to develop effective, evidence based interventions to combat malnutrition in all its forms using nuclear techniques. This publication was developed as an integral part of the IAEAs efforts to contribute to the transfer of technology and knowledge in the application of a widely used nuclear technique in nutrition, dual energy X ray absorptiometry (DXA). It provides information on the theoretical background as well as on the practical application of DXA to measure bone mineral density and to assess body composition.. ...

TY - JOUR. T1 - Point-of-Care Phalangeal Bone Mineral Density Measurement Can Reduce the Need of Dual-Energy X-Ray Absorptiometry Scanning in Danish Women at Risk of Fracture. AU - Holmberg, Teresa. AU - Bech, Mickael. AU - Gram, Jeppe. AU - Hermann, Anne Pernille. AU - Rubin, Katrine Hass. AU - Brixen, Kim. PY - 2016/3. Y1 - 2016/3. N2 - Identifying persons with a high risk of osteoporotic fractures remains a challenge. DXA uptake in women with elevated risk of osteoporosis seems to be depending on distance to scanning facilities. This study aimed to investigate the ability of a small portable scanner in identifying women with reduced bone mineral density (BMD), and to define triage thresholds for pre-selection. Total hip and lumbar spine BMD was measured by dual-energy X-ray absorptiometry and phalangeal BMD by radiographic absorptiometry in 121 Danish women with intermediate or high 10-year fracture probability (aged 61-81 years). Correlation between the two methods was estimated using ...

TY - JOUR. T1 - Dual-energy X-ray absorptiometry in the lumbar spine, proximal femur and distal radius in children. AU - Tsukahara, Hirokazu. AU - Sudo, M.. AU - Umezaki, M.. AU - Hiraoka, M.. AU - Yamamoto, K.. AU - Ishii, Y.. AU - Haruki, S.. PY - 1992/12. Y1 - 1992/12. N2 - Dual-energy X-ray absorptiometry was used to measure bone mineral density (BMD) in the lumbar spine, proximal femur and distal radius in 48 Japanese children aged 3-18 years. In the normal children (n=32), BMD increased with age in all locations, with a nearly twofold increase from preschool age to adolescence. Most of the children with chronic diseases known to affect vone metabolism (e.g., steroid osteoporosis) (n=16) had low BMD in every region, indicating that these disease states probably affect multiple sites of the skeleton in children.. AB - Dual-energy X-ray absorptiometry was used to measure bone mineral density (BMD) in the lumbar spine, proximal femur and distal radius in 48 Japanese children aged 3-18 years. ...

The purpose of this study was to examine the influence of fat-free adipose tissue mass (FFAT) on association between dual-energy X-ray absorptiometry (DXA)-derived lean soft tissue mass and skeletal muscle mass (TMM). Forty-one middle-aged and older women were recruited for this study. Percent body fat, total and appendicular fat mass (tFM and aFM, respectively), and total and appendicular lean soft tissue mass (tLM and aLM, respectively) were measured using a DXA. FFAT was calculated based on the methods of a previous study. TMM was estimated from the ultrasound-derived prediction equation. The subjects were separated into three groups based on DXA-determined percent fat: low (n=12, ,25 %), middle (n=15, ,= 25 and ,35 %), and high (n=14, ,= 35 %). DXA-derived aLM was greater in high than in middle or low, although ultrasound-estimated TMM was similar among the three groups. There was a strong correlation between aLM and TMM (r=0.905, p,0.001). The difference between aLM and TMM was correlated ...

Dual energy x-ray absorptiometry (DXA) measures body composition, tissue distribution, bone mineral content (BMC), and bone mineral density (BMD). Differences are possible due to software versions. This investigation examined body composition, tissue distribution, BMC, and BMD measurements using a D …

TY - JOUR. T1 - Slight Abduction/Adduction Deviations in Femur Positioning for Dual-Energy X-Ray Absorptiometry are Inconsequential. AU - Ozer, Byram H.. AU - Krueger, Diane. AU - Binkley, Neil. PY - 2010/1. Y1 - 2010/1. N2 - Straight femur alignment during dual-energy X-ray absorptiometry (DXA) acquisition is assumed to help ensure accurate bone mineral density (BMD) measurement. Use of bilateral femur positioners may not result in straight femur alignment. To assess the effect of a bilateral femur positioner on DXA results, we compared a standard fixed-width bilateral femur positioner with an adjustable-width positioner that allowed for straight femur alignment. BMD values obtained from the adjustable-width bilateral femur positioner were highly correlated (R2 = 0.98-0.99) with those obtained using a fixed-width positioner. The mean bias in BMD between the fixed- and adjustable-width positioner was low (-0.001 to +0.006 g/cm2) at all proximal femur regions of interest. In this study, the use ...

The urinary creatinine excretion rate is a function of the muscle mass which, in normal subjects, is shown to be correlated with lean body mass. Dual Energy X-ray Absorptiometry (DEXA) has been shown to correlate well with other methods for the measurement of body composition. The purpose of the pre …

How is a DEXA scan performed?. DEXA scans are quick and painless. You may be able to remain dressed, but you have to remove clothes with metal in, such as hooks, or zips. You do not need to prepare anything, fast, or follow any special diet.. When the scan is performed, you lie on your back, but a DEXA scan is not like an MRI, where you must go into a tunnel-like device. The X-ray table is flat, and open, so you are unlikely to feel closed in or claustrophobic.. A large scanning machine is passed over the body, emitting a low-dose X-ray beam to measure bone density in your skeleton. The machine can scan various parts of your body, but the most common areas examined are the hip, spine, and wrist.. Scans take a very short amount of time, perhaps five minutes - depending on the part of the body being scanned. There is no need to wait in hospital and you can go home after the scan.. What do DEXA scan results mean?. Bone density has a healthy-level score - a number which varies on age, ethnicity, ...

TY - JOUR. T1 - QUANTITATIVE COMPUTED-TOMOGRAPHY, DUAL-ENERGY X-RAY ABSORPTIOMETRY AND CHEMICAL-ANALYSIS OF THE FEMUR NECK - ACCURACY AND INFLUENCE OF MARROW FAT. AU - KUIPER, JW. AU - VANKUIJK, C. AU - EDERVEEN, AHG. AU - GRASHUIS, J. PY - 1993/8. Y1 - 1993/8. M3 - Meeting Abstract. VL - 8. SP - S346-S346. JO - Bone and Mineral. JF - Bone and Mineral. SN - 0884-0431. ER - ...

Accurate prediction of wobbling mass (WM), fat mass (FM), lean mass (LM), and bone mineral content (BMC) of living people using regression equations developed from anthropometric measures (lengths, circumferences, breadths, skinfolds) has previously been reported, but only for the extremities. Multiple linear stepwise regression was used to generate comparable equations for the head, neck, trunk, and pelvis of young adults (38 males, 38 females). Equations were validated using actual tissue masses from an independent sample of 13 males and 13 females by manually segmenting full-body dual-energy x-ray absorptiometry scans. Prediction equations exhibited adjusted R2 values ranging from .249 to .940, with more explained variance for LM and WM than BMC and FM, especially for the head and neck. Mean relative errors between predicted and actual tissue masses ranged from −11.07% (trunk FM) to 7.61% (neck FM). Actual and predicted tissue masses from all equations were significantly correlated (R2 = ...

The normal bone T- score is greater than -1. Osteopenia T-score is between -1 and -2.5. Osteoporosis T- score is less than -2.5. A T-score of less than -2.5 suggests osteoporosis and that your bones are extremely liable to fractures from the slightest injury. In fact in most women who have suffered from fractures following osteoporosis did not even report injuries; they sustained the fracture during some daily activity, which suggests the intensity of proneness to develop fractures with a T-score of less than -2.5. Use of DEXA scan in the Pediatric age group: It is not accurate to use T-scores to assess the Bone Mineral Density in children. Also the WHO classification of osteoporosis and osteopenia used in adults cannot be used in the case of children, but one can use the Z -scores to aid diagnosis. Children suffering from Rickets, Turners syndrome etc. can be subjected to the DEXA scan to calculate their Bone Mineral Density. However its use in pediatrics is still in its nascent stages. And ...

A DEXA scan is a special type of X-ray that measures bone mineral density (BMD). Its also known as a DXA, dual X-ray absorptiometry, a bone density scan or a bone densitometry scan

In an investigator-initiated randomized, placebo-controlled, double-blinded, and parallel-group designed clinical trial, forty healthy, sedentary men with a body mass index (BMI) , 30 kg/m2, age-range 40-70 y were randomly assigned to 12 wk of NR (1000 mg twice daily) or placebo. We determined the effects of NR supplementation on insulin sensitivity by a hyperinsulinemic euglycemic clamp and substrate metabolism by indirect calorimetry and labeled substrates of tritiated glucose and palmitate. Body composition and fat mass distribution were determined by whole-body dual-energy X-ray absorptiometry (DXA) and MRI scans, and measurements of intrahepatic lipid content were obtained by MR spectroscopy.. ...

Breast-feeding has been associated with later bone health, but results from previous studies are inconsistent. We examined the associations of breast-feeding patterns and timing of introduction of solids with bone mass at the age of 6 years in a prospective cohort study among 4919 children. We collected information about duration and exclusiveness of breast-feeding and timing of introduction of any solids with postnatal questionnaires. A total body dual-energy X-ray absorptiometry scan was performed at 6 years of age, and bone mineral density (BMD), bone mineral content (BMC), area-adjusted BMC (aBMC) and bone area (BA) were analysed. Compared with children who were ever breast-fed, those never breast-fed had lower BMD (−4·62 mg/cm2; 95 % CI −8·28, −0·97), BMC (−8·08 g; 95 % CI −12·45, −3·71) and BA (−7·03 cm2; 95 % CI −12·55, −1·52) at 6 years of age. Among all breast-fed children, those who were breast-fed non-exclusively in the first 4 months had higher BMD (2·91 ...

The impact of osteoporosis on implant treatment is still a matter of debate in the scientific community, as it may possibly lead to higher failure rates. As long-term controlled trials are missing, the aim of this study was to verify the long-term outcome of implants placed in patients with systemic osteoporosis. Postmenopausal women in need of implants underwent bone mineral density measurements in hip and spine, using dual X-ray absorptiometry scans. Based on T-scores, they were divided into 2 groups: group O (osteoporosis group) with a T-score =-1. Implants were placed in a 2-stage manner and loaded 4 to 8 wk after abutment surgery. Six months after loading and thereafter yearly, clinical and radiographical parameters were assessed. In total, 148 implants were placed in 48 patients (mean age: 67 y [range, 59-83]). Sixty-three implants were placed in 20 patients (group O) and 85 implants in 28 patients (group C). After 5 y, 117 implants (38 in ...

DXA scanning is considered the gold standard for the purposes of identifying patients with low BMD, predominantly due to cost-effectiveness and accessibility. It documents small changes in bone mass and can also be used to examine both the spine and the extremities ...

A Dexa Scan is not recommended during pregnancy.. How the Dexa Scan is done. The scan is usually done on an outpatient basis. If the central devise is used, the patient lies on a padded table and the arm (detector) slowly passes over the body and sends information to a computer. The patient must hold very still and may be asked to hold their breath for a few seconds while the X-ray picture is being taken. The scan usually takes only 10-30 minutes. The peripheral test is simpler. The finger, hand, forearm or foot is placed in the small device and it gives the results in just a few minutes.. A trained radiologist reads and interprets the scan results as a T score or a Z score. T score shows the amount of bone you have compared with another person who is the same gender (man or woman) with peak bone mass. A score above 1 is considered normal. A Z score tells the amount of bone you have compared with other people in your age group and the same gender. ...

AKUH,N has recently acquired a new state-of-the-art machine for testing Bone Mineral Density (BMD). The Dual Energy X Ray Absorptiometry (DXA) machine represents the international gold standard for BMD estimation, and is the only one of its kind in the region. The DXA emits significantly less radiation than other machines and ensures a more accurate BMD estimation. It is not only a key tool in diagnosing, preventing and treating osteoporosis, but it can also be used to evaluate a patients response to therapy, enhancing the treatment process significantly. Due to increasing awareness of osteoporosis and the incredible accuracy of the new machine, the number of patients receiving BMD testing has increased by over 30% since the introduction of the DXA machine. Our sophisticated computed radiography services support all general x-ray procedures. We can also provide digital copies of your x-rays ...

The World Health Organization (WHO) defines osteoporosis as a bone density (or bone mass) at least 2.5 standard deviations below peak bone mass (defined as the bone mass achieved by healthy adults aged 18-30 y).

A DEXA scan isnt the only way of measuring bone strength or fragility. Other risk factors need to be taken into consideration, such as family history and medication use, to determine whos at risk of developing bone fractures.. All of the risk factors need to be considered before a DEXA scan is recommended and before any treatment is started.. Some people need a DEXA scan to confirm that their risk of developing bone fractures is high enough to need treatment. For others, particularly elderly people over 75 years old, the risk of fracture may be so high that theres no need for them to have a DEXA scan before treatment is prescribed.. Interpreting the results of a DEXA scan can sometimes be difficult. For example, it may not be easy to interpret the results of a scan of the spine when someone has a degenerative condition, such as osteoarthritis of the spine (spondylosis). Sometimes, spinal abnormalities or a previous spinal fracture can give a false result.. A DEXA scan wont show whether low ...

Via cross calibration to the results of body composition (BC) measurement results to those of a reference device (the Discover A by Hologic) in terms of body fat percentage, lean mass percentage of total body mass and for different subregions (left and right arms, left and right sides, lumbar and thoracic spine, pelvis, left and right legs, head, android area, gynecoid area, visceral region ...

This type of scan measures bone density and strength. Its also known as a bone densitometry, DXA or DEXA scan. Read about procedure, cost and more.

Bone microarchitecture, bone mineral density (BMD), and bone strength are affected positively by impact activities such as running; however, there are discrepancies in the magnitude of these effects. These inconsistencies are mainly a result of varying training protocols, analysis techniques, and whether or not the skeletal sites measured are weight bearing. This studys purpose was to determine t ...

An enhanced form of x-ray technology used to measure bone loss, the DEXA scan provides a baseline for bone density and helps osteopenia & osteoporosis monitoring. Available at Cherry Hill, Haddonfield, Rt 73 Voorhees, Marlton, Sewell, Turnersville & West Deptford offices. Schedule bone density testing at SJRA today.

DXA provides the patients T-score, which is the BMD value compared with that of control subjects who are at their peak BMD.{ref5}{ref6}{ref7}{ref8} World Health Organization (WHO) criteria defi... more

We thank Tabibzadeh et al. for their comments. We agree that bisphosphonates are safe and the fear of adynamic bone disease should not be a reason to preclude its use in kidney transplant recipients. We believe that this is one of the main findings of our study.1 Our data confirmed that we should not have safety concerns with these drugs.. Moreover, besides not having safety issues, bisphosphonates should be used in kidney transplant patients, as suggested by our data. Findings of bone mineral gain on central skeleton assessed by dual-energy X-ray absorptiometry that have been shown by Segaud et al.,2 our group, and others, must be confronted with the bone loss at peripheral sites. Therefore, we agree that pretransplant bone evaluation should include either high-resolution peripheral quantitative computed tomography or forearm dual-energy X-ray absorptiometry.. As stated in the article and emphasized by Tabibzadeh et al., the design of our study precluded the inclusion of deceased-donor kidney ...

Schedule an appointment online with Houston Methodist Hospital - Imaging - Dexa Scan (Bone Density). Get insurance information, phone number, address, and more.

Dual energy x-ray absorptiometry (DEXA) is the gold-standard for determining loss of BMD, and its use is appropriate to assess the risk for fragility fracture and low BMD in all adults with HIV.1 Major risk factors for fragility fracture include a history of fragility fracture, use of glucocorticoid treatment for ,3 months (or ≥5 mg of prednisone daily or equivalent), and the presence of risk factors for falls.13 People with HIV who have these risk factors should receive a baseline DEXA, which should be repeated every 1 to 2 years for advanced osteopenia (T-score, −2.00 to −2.49) and every 5 years for mild to moderate osteopenia (T-score, −1.01 to −1.99).13 Patients started on bisphosphonates should undergo repeat DEXA in 2 years. 13 Adult patients with HIV with no risk factors for fragility facture or osteoporosis should have their 10-year risk for fracture assessed using the FRAX. Patients with a FRAX score ≤10% can be reassessed in 2 to 3 years.13 A FRAX score ≥10% warrants ...

Forget holding your breath under water and toss those old calipers. The new standard for measuring body composition is the DEXA scan. Find out what it is and how to get one.

Hi, I have just been diagnosed with celiac disease although I have been suffering its symptoms for about 10 years. As I am only 32 years old does anyone know would a DEXA scan really be necessary in my case or would it only be necessary for older people ? Thanks

Bone densitometry, or DEXA (dual energy X-ray absorptiometry), is an exam that detects early bone loss by measuring bone mineral density with a low-dose radiation. The spine and hip are the most common sites of measurement. South Seminole Hospital has registered technologists that perform these scans.. During the test, the patient will lie on a table comfortably on his or her back. Our technologist will enter the patients information in the computer which is used to compare the results to a normal reference group. There are no injections or oral preparations for the test and it usually lasts about 45 minutes.. The needs for DEXA vary somewhat depending on the physician and/or medical provider. Some reasons to receive a DXA include:. ...

If osteoporosis is a silent disease, how do doctors and patients diagnose it? Like diabetes early diagnosis of osteoporosis is critical as treatment can reduce fracture risk. Earlier it was difficult to diagnose osteoporosis. Doctors would get some idea of bone strength by looking at x-rays of the patient. However x-rays are a crude test as they show osteoporosis only in the advanced stages. By then it is too late! Measuring the blood calcium levels gives no indication of the strength of bones or the level of calcium in the bones. Nowadays technology has improved. A DEXA scan is currently the gold standard for measuring bone mineral density (BMD). DEXA scan checks the density in the lower back and hip which are the critical areas. DEXA scan is a computerised X-ray based test. Ultrasound of the wrist or heel can also be done. Ultrasound is popular as it is portable (used frequently in patient camps) and cheaper. But ultrasound is less accurate and the wrist and heel density may differ from the ...

Percentage of female patients aged 50 to 64 without select risk factors for osteoporotic fracture who received an order for a dual-energy x-ray absorptiometry (DXA) scan during the measurement period.

A5260s is the optional, metabolic substudy of a phase III, prospective, randomized clinical trial (A5257). For complete details about the parent study A5257, please see ClinicalTrials.gov identifier NCT00811954.. Some participants in study A5257 were asked to participate in substudy A5260s. Not all participants were asked since A5260s only took place at a subset of A5257 sites. Participants who agreed to participate in substudy A5260s were enrolled at the same time as their enrollment in A5257. No interventions were given as part of A5260s, but all A5260s participants underwent blood draws, self-administered questionnaire responses (related to physical activity and body image), ultrasound scans to measure the thickness of the carotid artery in the neck and brachial artery flow mediated dilation in the arm, and computerized topography (CT) and dual-energy x-ray absorptiometry (DEXA) scans to measure bone mineral density and body fat.. The duration of A5260s study was between 2 and 3 years (96 and ...

Bisphosphonates have emerged as an important tool in the supportive care of women with early breast cancer. Whereas traditionally, these drugs have been part of the treatment of osseous metastasis, the key role of bisphosphonates in preserving bone health in patients with early breast cancer cannot be overemphasised. Currently the most established use of bisphosphonates in early breast cancer patients is in women receiving hormonal blockade, mostly aromatase inhibitors (AI), with concomitant osteopenia. To that end, it is recommended that every woman undergo a Dual Energy X-Ray absorptiometry (DEXA) scan before commencement of an AI and annually during the treatment duration ...

A doctor who wrote in his notes naughty boy wants to get buff by April when prescribing steroids and stimulants to hundreds of body-builders has been struck off for 10 years.. Dr Anish Singh also ordered plasma infusions, iron infusions and dual energy x-ray absorptiometry (DEXA) scans for patients with no clinical justification, the WA State Administrative Tribunal has found.. The Perth doctor attempted to justify almost all of the prescriptions and tests for some 700 different patients, saying they were for conditions such as sarcopenic obesity, iron deficiency, osteoporosis or cancer cachexia.. But the tribunal found that objective evidence, including Dr Singhs clinical notes, painted a very different picture.. Dr Singhs notes included: Has a competitive streak, wants to be the best he can be; wants to bulk up; and serratus anterior needs to be defined, increase in biceps and triceps, hamstrings also need to be defined.. Many patients received large quantity prescriptions in a ...

Hologic has received FDA clearance to incorporate the U.S. National Health and Nutrition Examination Survey (NHANES) Whole Body Reference Data into its Discovery dual x-ray absorptiometry (DXA) systems.

Body mass index (BMI) has been used for nearly 200 years to measure percentage of body fat. But new research suggests BMI ratings may actually be underestimating the prevalence of the obesity epidemic.. The study by the Path Foundation compared percent body fat results from dual-energy x-ray absorptiometry (DXA) a full-body scan that measures muscle, bone mass and body fat and BMI measurements in 1,400 patients.. Results showed that 48 per cent of women and 25 per cent of men were classified as non-obese by BMI standards, but were obese by their percent of body fat. BMI measures your weight to height ratio, but ignores how fat is distributed in your body.. Another factor BMI does not account for is age. Women lose muscle and bone mass faster than men, and replace it with fat. In the study, 48 per cent of women ages 50-59 were misclassified as obese. Misclassification increased to 59 per cent for women aged 70 and over. Why is BMI still being used? Study investigators suggest DXA scans and ...

DEXA is relatively easy to perform and the amount of radiation exposure is low. A DEXA scanner is a machine that produces two X-ray beams, each with different energy levels. One beam is high energy while the other is low energy. The amount of X-rays that pass through the bone is measured for each beam. This will vary depending on the thickness of the bone. Based on the difference between the two beams, the bone density can be measured ...

At Hologic, enhancing early detection, improving diagnostic accuracy and delivering compassionate technologies continually drive the development of our imaging solutions. From Hologic 3D MAMMOGRAPHY™, proven to detect breast cancer at an earlier stage, to unprecedented advances in bone health, Hologic imaging solutions break through technological limitations to provide greater comfort - and to improve visibility into breast and bone health.

There is a loss of lean body mass (LBM) with increasing age. A low LBM has been associated with increased adverse effects from prescribed medications such as chemotherapy. Accurate assessment of LBM may allow for more accurate drug prescribing. The aims of this study were to develop new prediction equations (PEs) for LBM with anthropometric and biochemical variables from a development cohort and then validate the best performing PEs in validation cohorts. PEs were developed in a cohort of 188 healthy subjects and then validated in a convenience cohort of 52 healthy subjects. The best performing anthropometric PE was then compared to published anthropometric PEs in an older (age ≥ 50 years) cohort of 2287 people. Best subset regression analysis was used to derive PEs. Correlation, Bland-Altman and Sheiner & Beal methods were used to validate and compare the PEs against dual X-ray absorptiometry (DXA)-derived LBM. The PE which included biochemistry variables performed only marginally better than the

Quantitative computed tomographic evaluation of bone mineral density in beagle dogs: comparison with dual-energy x-ray absorptiometry as a gold standard ...

Reviews about AlgaeCal from real users who have shared verified video and written testimonials showing how they increased their bone density using AlgaeCal. Read real AlgaeCal reviews and DEXA results now!

Reviews about AlgaeCal from real users who have shared verified video and written testimonials showing how they increased their bone density using AlgaeCal. Read real AlgaeCal reviews and DEXA results now!

RECH, Cassiano Ricardo; PETROSKI, Edio Luiz; SILVA, Rosane Carla Rosendo da and SILVA, João Carlos Nunes da. Anthropometric indicators of fat mass excess among women. Rev Bras Med Esporte [online]. 2006, vol.12, n.3, pp.119-124. ISSN 1517-8692. http://dx.doi.org/10.1590/S1517-86922006000300002.. The aim of this study was to determine sensibility, specificity and level of association between two indicators of fat mass excess among women. Sixty-five women (aged 50-77 years) participated in the study. The mean values for the group were 70.3 ± 11 kg for body mass and 158.0 ± 5.5 cm for height. The body mass index (BMI) and the reciprocal of ponderal index (RPI) were registered. The percentage of body fat, estimated by the dual-energy X-ray absorptiometry (%BFDEXA), was used as the gold standard measure. Data analyses consisted of descriptive statistics, Pearsons linear correlation and the Kappa index. The mean scores for BMI, RPI and %BFDEXA were 28 ± 4.2 kg.m-2, 38 ± 1.9 cm.kg-1/3 and 38.1 ± ...

Properties of a medium of food or feed, such as the fat content of meat, are determined by the use of dual X-ray absorptiometry with dual energy levels. Substantially, the entire medium is scanned by X-ray beams, and the X-rays passing through the medium are detected for a plurality of areas (pixels) of the medium. For each area, values Alow and Ahigh, representing absorption in the area of the medium at low and high energy levels are calculated. A plurality of values being products of the type Alow n*Ahigh m are generated and used for predicting the properties of the medium in this area. Thereby the accuracy of the property determination is improved considerably.

TY - JOUR. T1 - Dual energy X-ray absorptiometry of the knee in spinal cord injury. T2 - Methodology and correlation with quantitative computed tomography. AU - McPherson, J. G.. AU - Edwards, W. B.. AU - Prasad, A.. AU - Troy, K. L.. AU - Griffith, James W. AU - Schnitzer, Thomas J. PY - 2014/11/13. Y1 - 2014/11/13. N2 - Study Design: Comparison of diagnostic tests; methodological validation. Objectives: Primary: to investigate the precision and reliability of a knee bone mineral density (BMD) assessment protocol that uses an existing dual energy X-ray absorptiometry (DXA) forearm acquisition algorithm in individuals with spinal cord injury (SCI). Secondary: to correlate DXA-based knee areal BMD with volumetric BMD assessments derived from quantitative computed tomography (QCT). Setting: Academic medical center, Chicago, IL, USA. Methods: Participants: a convenience sample of 12 individuals with acute SCI recruited for an observational study of bone loss and 34 individuals with chronic SCI who ...

Bone Densitometers Market (Technology - Axial Bone Densitometry (Dual Energy X-Ray Absorptiometry and Quantitative Computed Tomography) and Peripheral Bone Densitometry (Single Energy X-Ray Absorptiometry, Peripheral Dual Energy X-Ray Absorptiometry, Radiographic Absorptiometry, Quantitative Ultrasound, and Peripheral Quantitative Computed Tomography); End User - Hospitals, Diagnostic Centers, and Specialty Clinics) - Global Industry Analysis, Size, Share, Growth, Trends, and Forecast 2016 - ...

TY - JOUR. T1 - Accuracy of Longitudinal Assessment of Visceral Adipose Tissue by Dual-Energy X-Ray Absorptiometry in Children with Obesity. AU - Dias, Katrin A.. AU - Ramos, Joyce S.. AU - Wallen, Matthew P.. AU - Davies, Peter S.W.. AU - Cain, Peter A.. AU - Leong, Gary M.. AU - Ingul, Charlotte B.. AU - Coombes, Jeff S.. AU - Keating, Shelley E.. N1 - Copyright © 2019 Katrin A. Dias et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.. PY - 2019/11/3. Y1 - 2019/11/3. N2 - Background. Increased visceral adipose tissue (VAT) is strongly associated with cardiometabolic risk factors. Accurate quantification of VAT is available through magnetic resonance imaging (MRI), which incurs a significant financial and time burden. We aimed to assess the accuracy of dual-energy X-ray absorptiometry- (DXA-) derived VAT (DXA-VAT) against a ...

OBJECTIVE : Patients with chronic liver disease (CLD) have an increased prevalence of osteoporosis. The aim of this study was to evaluate prospectively the rate of bone loss and potential predictors of increased bone loss in a cohort of patients with CLD. DESIGN : Bone mineral density (BMD) was measured at baseline and at follow-up by dual-energy X-ray absorptiometry at the lumbar spine and the femoral neck. RESULTS : Forty-three patients (31 female, 12 male) were available for a second measurement of BMD, with a median of 25 months (range 18-41) between the measurements. Mean annual bone loss at the lumbar spine and the femoral neck, respectively, was 0.6 +/- 2.0% and 1.5 +/- 2.4% in females and 0.8 +/- 1.9% and 2.9 +/- 2.0% in males. The BMD Z score decreased significantly over time at the femoral neck (P = 0.005 and P = 0.02 for females and males, respectively). Bone loss was increased significantly at the lumbar spine in patients classified as Child-Pugh B + C compared with those classified ...

The health benefits currently associated with increased dairy intake may be attributable to the whey component of dairy proteins. The present study evaluated the effects of whey protein supplementation on body composition, lipids, insulin and glucose in comparison to casein and glucose (control) supplementation in overweight/obese individuals for 12 weeks. The subjects were randomised to whey protein, casein or glucose supplementation for 12 weeks according to a parallel design. Fasting blood samples and dual-energy X-ray absorptiometry measurements were taken. Seventy men and women with a mean age of 48•4 (SEM 0•86) years and a mean BMI of 31•3 (SEM 0•8) kg/m2 completed the study. Subjects supplemented with whey protein had no significant change in body composition or serum glucose at 12 weeks compared with the control or casein group. Fasting TAG levels were significantly lowered in the whey group compared with the control group at 6 weeks (P=0•025) and 12 weeks (P=0•035). There ...

To determine the relationships among nutrients intake, bone mass, and bone turnover in women we have investigated these issues in a population-based, cross-sectional, observational study in one county in central Sweden. A total of 175 women aged 28-74 at entry to the study were included. Dietary assessment was made by both a semiquantitative food frequency questionnaire and by four 1-week dietary records. Dual energy X-ray absorptiometry was performed at five sites: total body, L2-L4 region of the lumbar spine, and three regions of the proximal femur. Serum concentrations of osteocalcin (an osteoblast-specific protein reflecting bone turnover) were measured by a radioimmunoassay. Linear regression models, with adjustment for possible confounding factors were used for statistical analyses. A weak positive association was found between dietary calcium intake as calculated from the semiquantitative food frequency questionnaire and total body bone mineral density (BMD) among premenopausal women. No ...

Major changes in bone mineral density (BMD) and body composition occur during puberty. In the present longitudinal study, we evaluated BMD and calculated volumetric BMD [bone mineral apparent density (BMAD)], bone metabolism, and body composition of children (32 girls and 2 boys) with central precocious and early puberty before and during treatment with GnRH agonist (GnRH). Patients were studied at baseline and during treatment for 6 months (n = 34), 1 yr (n = 33), and 2 yr (n = 16). Lumbar spine and total body BMD and body composition were measured with dual-energy x-ray absorptiometry. The variables were compared with age- and sex-matched reference values of the same population and expressed as SD score (SDS). Bone age was assessed. Serum calcium, phosphate, alkaline phosphatase, osteocalcin, the carboxyterminal propeptide of type I collagen (PICP), cross-linked telopeptide of collagen I (ICTP), 1,25 dihydroxyvitamin D and urinary hydroxyproline/creatinine, and calcium/ creatinine ratios were ...

Introduction:There is considerable amount of controversy about the long term effects of multiparity and duration of breast-feeding on maternal bone mineral density after menopause. This study was conducted to determine whether multiple pregnancy and prolonged duration of breast-feeding are independent predictors of low bone mass in post-menopausal Kurdish women. Methods: In a retrospective study, we evaluated 991 post-menopausal women with mean age of 58.9 years screened for osteoporosis by dual energy X-ray absorptiometry (DXA). According to the parity (1-2, 3-4, 5-7, |7 children) and total duration of breast-feeding (1-24, 25-60, 61-96, |96 months) they were classified. Bone mineral density (BMD) results for femoral neck and lumbar spine were classified into three groups (normal, osteopenia, and osteoporosis) according to the WHO criteria. Binary logistic regression was used to assess the independent associations of low femur or spine BMD with parity and total duration of breast-feeding. Results: We

Age- and disease (osteoporotic fractured and osteoarthritic tissue)-related changes in the distribution of cortical bone were examined, using a multimodality approach, including measurement of local density, geometry and mechanical properties, where changes in these properties can give rise to instability and increasing probability of fracture. In contrast to the majority of previously reported research, this study also focuses on the characteristic non-circular femoral neck cross-sectional geometry and variation in bone mineral density (BMD) around the femoral neck. Twenty-two osteoarthritic and 7 osteoporotic femoral neck slices, collected from elective and trauma-related arthroplasty, and 16 cadaveric donor tissue controls were tested mechanically using Reference Point Indentation (BioDent™, Active Life Technologies®, Santa Barbara, CA) and then scanned with in vitro-based radiography intended to replicate the dual-energy X-ray absorptiometry technique. All parameters were measured regionally

Dual-energy X-ray absorptiometry (DXA) devices from the three main manufacturers provide different bone mineral density (BMD) values, due in part to technical differences in the algorithms for bone mineral content (BMC) and area measurements and in part to the use of different manufacturer-derived reference databases. As a result, significant differences exist between Hologic, Lunar and Norland systems in the reported young normal standard deviation scores or T-scores. In a number of European countries, including Belgium, a T-score below −2.5 is one of the key criteria for reimbursement of osteoporosis treatments. This paper addresses the first attempt to implement a nationwide, uniform expression of BMD in patients, in order to harmonize drug reimbursement. To this end, measures were taken to implement a uniform expression of BMD in Belgian patients, by converting each manufacturers absolute BMD to standardized BMD (sBMD) values and by establishing a single national reference range.

HIV-infected patients starting antiretroviral treatment (ART) experience deep and early disorders in fat and bone metabolism, leading to concomitant changes in fat mass and bone mineral density. We conducted a prospective study in treatment-naive HIV-infected patients randomized to receive two nucleoside reverse transcriptase inhibitors in combination with either a protease inhibitor (PI) or a non-nucleosidic reverse transcriptase inhibitor (NNRTI), to evaluate early changes in body composition, bone mineral density and metabolic markers as differentially induced by antiretroviral therapies. We measured changes in markers of carbohydrate, of fat and bone metabolism, and, using dual-emission X-ray absorptiometry (DXA), body composition and bone mineral density (BMD). Complete data on changes between baseline and after 21 months treatment were available for 35 patients (16 in the PI group and 19 in the NNRTI group). A significant gain in BMI and in total and lower limb fat mass was recorded only in

Clinicians should also consider the cancer treatment as another potential baseline risk factor.. If patients meet any of the listed criteria, they should be offered bone mineral density testing with central/axial dual-energy x-ray absorptiometry, according to the guideline. In settings where such testing is not available or technically feasible, other bone mineral density testing (for example, quantitative ultrasound or calcaneal dual-energy x-ray absorptiometry) should be offered. This testing should be offered every 2 years (more frequently if deemed medically necessary).. Clinicians should encourage patients to consume a diet with adequate calcium and vitamin D. Further, if the intake of calcium (1,000 to 1,200 mg/d) and vitamin D (at least 800 to 1,000 IU/d) is not being consumed at those target levels, then supplements to reach those levels are recommended.. The guideline states that for patients with nonmetastatic cancer with osteoporosis (T-scores of 2.5 or less in the femoral neck, total ...

Bone Densitometry is a simple, painless, non-invasive test that takes about 15 minutes. A DEXA (Dual Energy X-Ray Absorptiometry) scanner is used to provide information regarding your bone mineral density (BMD). By comparing your test results to a local database, healthcare providers can estimate bone strength and predict the risk for fractures ...

DNA sequences comprising nucleic acids encoding fusion proteins comprising an Fc portion of an antibody attached at the N-terminus of an OB protein moiety, vectors comprising such DNA sequences, host cells comprising such vectors or DNA sequences, and processes for preparing such fusion proteins, and pharmaceutical compositions comprising such fusion proteins, are described. The DNA sequences, vectors comprising such DNA sequences, host cells comprising such vectors or DNA sequences, and processes for preparing such fusion proteins, and pharmaceutical compositions comprising such fusion proteins are useful, for example, in providing therapeutically effective amounts of compositions useful for, for example, increasing insulin sensitivity, decreasing the dose of insulin required for the treatment of diabetes, controlling serum glucose levels, increasing lean tissue mass, increasing overall body strength, or regulating bone resorption, or effecting any combination of such, in subjects in need or desirous

Background & objectives: The main goal when treating malignancies with radiation is to deprive tumour cells of their reproductive potential. One approach is to induce tumour cell apoptosis. This study was conducted to evaluate the ability of carbon ions ( [12] C) to induce apoptosis and cell cycle arrest in human HTB140 melanoma cells. Methods: In this in vitro study, human melanoma HTB140 cells were irradiated with the 62 MeV/n carbon ( [12] C) ion beam, having two different linear energy transfer (LET) values: 197 and 382 keV/μm. The dose range was 2 to 16 Gy. Cell viability was estimated by the sulforhodamine B assay seven days after irradiation. The cell cycle and apoptosis were evaluated 48 h after irradiation using flow cytometry. At the same time point, protein and gene expression of apoptotic regulators were estimated using the Western blot and q-PCR methods, respectively. Results: Cell viability experiments indicated strong anti-tumour effects of [12] C ions. The analysis of cell cycle ...

A DEXA scan assesses your bone density and your risk of osteoporosis. It is the only diagnostic test for osteoporosis before a fracture occurs.

010-0771 - LOW RES DETECTOR ASSY - HOLOGIC QDR4500 BONE DENSITY EQUIPMENT. 010-0771 - LOW RES DETECTOR ASSY FOR HOLOGIC QDR4500 C & W MODEL BONE DENSITY.

Objective: To examine the total hip (TH) and femoral neck (FN) bone loss in women and men above 50 years of age with self-reported chronic diseases. Methods: Using data from The Tromsø Study, men and women aged 50-74 years were included in this study. Disease status was identified based on self-reports. Bone mineral density (BMD) of TH and FN were measured using DXA (Dual-energy X-ray Absorptiometry). The change in BMD was calculated as the difference between BMD in Tromsø 5 and Tromsø 6. Linear regression analysis was used to assess relationship between the predictor variables (diseases) and the outcome (change in total hip and femoral neck BMD). Results: Out of 2310 participants, 860 were men and 1450 were women. Men had significantly more cases of heart disease ( ...

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Introduction: Weight loss is an important component of diabetes prevention and management because of the known effect of adiposity on insulin resistance. While both muscle (lean mass) and fat mass are known to serve important metabolic functions, most studies of obesity and diabetes use proxy measures for overall or abdominal obesity without accounting for the composition of that mass. The aim of this study was to examine the association of total and trunk lean body mass and fat mass with hemoglobin A1c (HbA1c) - an indicator of glucose control in persons with diabetes and a risk marker in non-diabetic populations - in the general U.S. population.. Methods: We conducted a cross-sectional analysis of data from the NHANES collected in 1999-2006 in participants aged 18-69 years. Lean body mass and percent body fat were determined using dual energy x-ray absorptiometry (DXA); analyses were weighted and multiple imputation was applied to account for missing DXA data. Associations of body composition ...

I am a 60-year-old female with osteoporosis. I took Fosamax 70 mg once weekly for seven months until I could no longer endure the side effects. For the following month, I took no medication. Since January 21, 2008, I have been on 680 mg strontium citrate once daily. I intend to relate my progress. My first DEXA scan was done May 8, 2007. My T-score at the lumbar spine was -3.0 (-2.0 at L1, -2.7 at L2, -3.4 at L3 and -3.8 at L4). My T-score at the left hip was -2.2 (-2.8 at neck, -2.0 at troch, -1.9 at inter). My BMD results in g/cm2 were 0.712 at the spine (L1-L4), 0.53 at the left hip (neck), and 0.670 at the left hip (total). A followup scan is planned for July 6, 2009. For these results, see: http://strontiumforbones.blogspot.com/2009/07/improved-t-scores-after-treatment. ...

Results Activity levels were related to body composition outcomes; for example, lean mass index (lean mass/height2) was positively associated with time spent in moderate activity (r=0.40, p=0.02) and negatively with time spent in sedentary activity (r=−0.50, p=0.002). Per cent time spent in sedentary activity correlated negatively with whole body bone mineral density z-score (r=−0.44, p=0.01) and hip bone mineral content (r=−0.38, p=0.03).. ...

If you are at risk for osteoporosis or will be receiving treatment that increases your risk, your doctor may request bone mineral density testing before treatment begins to obtain a baseline value for later comparison. The test most often used is a low-dose X-ray technique known as dual-energy X-ray absorptiometry, commonly called densitometry or a DEXA scan. This test calculates bone density according to how much radiation the bone absorbs.. Osteoporosis is indicated by a bone density lower than the range expected in premenopausal women or other women similar to you in age and ethnicity. Testing is noninvasive, painless and takes about 20 to 30 minutes to complete. If you are at high risk for osteoporosis, your doctor may prescribe a medication approved for the prevention and/or treatment of osteoporosis (Table 1). In addition, changes in lifestyle habits can help keep your bones strong (Table 2).. Some complementary and herbal supplements are marketed as agents to help prevent and/or treat ...

According to a recent review in American Family Physician, 1 to 2 million American men have osteoporosis, 13 percent of white U.S. men older than age 50 will experience an osteoporotic fracture in their lifetimes, and men are twice as likely as women to die in the hospital following a hip fracture. However, unlike screening guidelines in women, there is no consensus on when to screen for osteoporosis in men. The American College of Physicians recommends an individualized osteoporosis risk assessment for men age 65 or older, and dual energy x-ray absorptiometry (DXA) scans to measure bone density in men at increased risk. On the other hand, the U.S. Preventive Services Task Force found insufficient evidence to assess the balance of benefits and harms of screening for osteoporosis in men, although it observed that men most likely to benefit from screening would have 10-year risks of osteoporotic fracture equal to or greater than those of 65-year-old white women with no additional risk factors ...

The aim of the present study was to describe postpubertal changes in total and abdominal adiposity in young men and the relation to changes in physical activity (PA). The study included 107 white men with a mean age of 17.1 +/- 1.7 years at baseline. Total percentage body fat (%BF) and abdominal percentage body fat (abd%BF) were measured at baseline and after a mean time of 28, 68, and 92 months using dual-energy X-ray absorptiometry (DXA). PA (h/week) was assessed at each visit by questionnaire. Over the study period, significant increases of 7.8 +/- 5.5%BF and 9.0 +/- 5.6 abd%BF were observed. Subjects who were active athletes throughout the study (n = 24), or nonathletes not changing their level of PA during follow-up (n = 27) increased 5.7 +/- 3.2 and 8.1 +/- 6.7%BF, respectively. Athletes who quit organized training during follow-up period (n = 56) increased by 8.7 +/- 4.9%BF. In the total cohort, the average annual gains in BMI, %BF, and abd%BF were 0.4 kg/m(2), 0.9%BF, and 1.1abd%BF (all ...

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Finni T, Saakslahti A, Laukkanen A, Pesola A, Sipila S. A family based tailored counselling to increase non-exercise physical activity in adults with a sedentary job and physical activity in their young children: design and methods of a year-long randomized controlled trial. BMC Public Health 2011;11:944-2458-11-944 ...

Background: Inhaled corticosteroids (ICS) are the drugs of choice for asthma. Corticosteroids can have many detrimental effects on bone mineralization and growth, despite of inhaled administration.. Aims and objectives: To evaluate the association between the long-term use of ICS in childhood and bone mineral density (BMD) in teenagers.. Methods: Ninety-one children hospitalized for wheezing at age ,24 months were prospectively followed until 12.2 (median) years of age. Data on ICS use were collected by interviewing the parents, supplemented by data from patient records. Cumulative doses, the duration of ICS use and systemic steroid doses were calculated. At the last check-up, BMD (BMDareal, g/cm2) was measured by dual energy X-ray absorptiometry (DXA) in 89 children, and apparent volumetric BMDs (aBMDvol, g/cm3) were calculated for the lumbar spine and femoral neck. Weight, height and pubertal stage were recorded.. Results: The regular use of ICS at age ,6 years was associated with a lower ...

There is a growing body of research showing that diabetes is an independent risk factor for fracture. Type 2 diabetes (T2D), which predominates in older individuals and is increasing globally as a consequence of the obesity epidemic, is associated with normal or even increased dual-energy x-ray absorptiometry (DXA)-derived areal bone mineral density (BMD). Therefore, the paradoxical increase in fracture risk has led to the hypothesis that there are diabetes-associated alterations in material and structural properties. An overly glycated collagen matrix, confounded by a low turnover state, in the setting of subtle cortical abnormalities, may lead to compromised biomechanical competence. In current clinical practice, because BMD is central to fracture prediction, a consequence of this paradox is a lack of suitable methods, including FRAX, to predict fracture risk in older adults with T2D. The option of adding diabetes to the FRAX algorithm is appealing but requires additional data from large population

Background: Osteoporosis is a prevalent condition that is often overlooked until a fragility fracture occurs. Screening for bone loss with dual-energy X-ray absorptiometry (DXA) scans is underutilized in the primary care setting. Direct communication with at-risk patients, offering self-referral for DXA screening, has been demonstrated to be the most effective intervention in increasing DXA screening rates. Purpose: The goal of this DNP project was to improve bone density screening rates in a primary care practice by inviting patients at greatest risk of osteoporosis to schedule a DXA without a provider order. Methods: After a review of the electronic medical record, letters and educational brochures were mailed to 261 eligible patients, including women age 50 and over and men age 70 and over, with instructions to schedule a DXA scan. Patients whose DXA results revealed osteoporosis or osteopenia with a high risk of fracture were invited for in-person educational counseling and medication management.

16. A computer-implemented method for analyzing a patients body part of interest to assess bone strength and/or risk of future fracture, said method comprising: obtaining a priori information regarding the body part of interest, said a priori information comprising a three-dimensional (3D) generic model of a comparable body part; performing X-ray absorptiometric scans of the patients body part of interest and collecting X-ray absorptiometry data from the X-ray absorptiometric scans, said data being derived using x-ray imaging detectors included in a computer-driven data acquisition system, said data representing a plurality of two-dimensional (2D) images of the patients body part, each of said 2D images of the patients body part being at a respective orientation of an imaging x-ray beam relative to the patients body part; constructing a three-dimensional model of the patients body part of interest, by utilizing the a priori information along with the X-ray absorptiometric data, said ...

DXA uses a technique called densitometry or X-ray absorptiometry; the machine passes an X-ray beam through an area of the bone. Ultrasound testing uses sound waves instead of X-rays. Radiation (or sound waves) are absorbed by the bone-- the denser the bone, the more it absorbs. The machines detectors translate absorption information into a measure of bone density. The dual in dual X-ray absorptiometry (DXA) refers to the use of two different X-ray beams, which enables the machine to distinguish between bone and the soft tissue (e.g., muscle, fat) covering it. Thats why DXA can measure density of the hip and spine bones, even though they lie deep inside the body. Tests that use just a single beam can only measure bones that are just under the skin, such as the bones in the hand, wrist, and heel. Bone density tests are the best way to determine if you have osteopenia or osteoporosis. But these tests cant tell you why youre losing bone or how fast its happening. Nor can they evaluate ...

The present study confirmed the hypothethetical association between a high Larsen score and low BMD in the femoral neck in a large sample of patients with RA with low to moderately active disease. Moreover, the well known associates of high age and low BMI were independent variables associated with low BMD at all measurement sites. With increasing age, BMD decreased more in women than in men im both the hip and the spine. The current results were confirmed in a large subgroup of corticosteroid naïve patients. This is interesting as these associations had not been studied previously in a large group of corticosteroid naive patients.7,17. Previous studies7,17 showed an inverse association between joint damage, expressed by the Larsen score, and BMD measured by DXA in patients with a disease duration of more than 10 years in relatively small patient groups. With the present study, we confirmed these findings in a large population that was heterogeneous for disease duration and joint damage. The ...

Despite well-known sex differences in body composition it is not known whether sex-specific genetic or environmental effects contribute to these differences.We assessed body composition in 2,506 individuals, from a young Dutch genetic isolate participating in the Erasmus Rucphen Family study, by dual-energy X-ray absorptiometry and anthropometry. We used variance decomposition procedures to partition variation of body composition into genetic and environmental components common to both sexes and to men and women separately and calculated the correlation between genetic components in men and women.After accounting for age, sex and inbreeding, heritability ranged from 0.39 for fat mass index to 0.84 for height. We found sex-specific genetic effects for fat percentage (fat%), lean mass, lean mass index (LMI) and fat distribution, but not for BMI and height. Genetic correlations between sexes were significantly different from 1 for fat%, lean mass, LMI, android fat, android:gynoid fat ratio and WHR,

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AIMS/HYPOTHESIS: Despite well-known sex differences in body composition it is not known whether sex-specific genetic or environmental effects contribute to these differences. METHODS: We assessed body composition in 2,506 individuals, from a young Dutch genetic isolate participating in the Erasmus Rucphen Family study, by dual-energy X-ray absorptiometry and anthropometry. We used variance decomposition procedures to partition variation of body composition into genetic and environmental components common to both sexes and to men and women separately and calculated the correlation between genetic components in men and women. RESULTS: After accounting for age, sex and inbreeding, heritability ranged from 0.39 for fat mass index to 0.84 for height. We found sex-specific genetic effects for fat percentage (fat%), lean mass, lean mass index (LMI) and fat distribution, but not for BMI and height. Genetic correlations between sexes were significantly different from 1 for fat%, lean mass, LMI, android fat,

There are two items of equipment in the bone densitometry room; the table with the x-ray machine and the computer system. The table has a padded top for comfort. The bone densitometry scanner produces a narrow x-ray beam which cannot be seen or felt, that passes from the x-ray source in the table through the patient, to the detectors in the scanner arm above the patient. The operator, a trained BMD technologist, sits at the computer console during the scan. Each region scanned takes between 3 to 5 minutes to complete. There is no preparation required for Bone Density testing.. ...

Body Mass Index (BMI) is a number calculated from a persons weight and height. BMI is a fairly reliable indicator of body fatness for most people. BMI does not measure body fat directly, but research has shown that BMI correlates to direct measures of body fat, such as underwater weighing and dual energy x-ray absorptiometry (DXA). BMI can be considered an alternative for direct measures of body fat. Additionally, BMI is an inexpensive and easy-to-perform method of screening for weight categories that may lead to health problems ...

Fortunately, there are preventive steps you can take. Thirty years ago, osteoporosis was generally considered a part of normal aging. But today researchers know a lot more about how to protect your bones throughout your life. For example, getting enough calcium, vitamin D (which aids calcium absorption) and exercise is very important. Eating fruits and vegetables is also beneficial to bones. On the other hand, eating poorly, smoking, drinking too much alcohol and not exercising can cause bone loss.. In addition, researchers now have a way to detect osteoporosis before a broken bone occurs. Its called a bone density test, and it measures your bone density in the hip and spine. Thats because fractures in these areas can cause more serious problems, including longer recovery time, greater pain and even disability. Using a Central Dual Energy X-ray Absorptiometry (DXA) machine, the test usually takes 15 minutes or less. It is non-invasive and painless. While it does expose you to radiation, you ...

The objectives of this study were to (1) develop a non-invasive method (referred to as Smart Photo-Tape) to calculate participant-specific upper arm, forearm, and hand segment inertial properties (SIPs) (e.g. mass, center of mass, and radii of gyration) and (2) use those Smart Photo-Tape properties in inverse dynamics (ID) analyses to calculate injury-related pitching arm kinetics. Five 20- to 23- year-old baseball pitchers were photographed holding a baseball and analyzed using the Smart Photo-Tape method to obtain 3-D inertial properties for their upper arm, forearm, and hand. The upper arm and forearm segments were modelled as stacked elliptic cylinders and the hand was modelled as an ellipsoid. One participant received a dual energy x-ray absorptiometry (DXA) scan and conducted a motion analysis study, pitching 10 fastballs. Scaled SIPs from cadaver studies and Smart Photo-Tape SIPs were compared using one sample t-tests. Pitching arm kinetic predictions were calculated and compared using scaled

Bone density testing can help detect osteoporosis risk. Schedule a DEXA bone density scan at Centrelake Imaging in Pomona, Ontario, or West Covina.

Wilbert S. Aronow, MD, FACC, FAHA, AGSF, FCCP, Divisions of Cardiology, Geriatrics, and Pulmonary/Critical Care, Department of Medicine, New York Medical College, Valhalla, NY, USA.. Low bone mineral density (BMD) is associated with obstructive coronary artery disease (CAD); this article reviews several recent studies that have demonstrated the association. In one study, for every 1-unit reduction in femoral neck T score, a 0.23 minute decrease in treadmill exercise duration was found after values were adjusted for age and other patient characteristics (95% confidence interval [CI], 0.11-0.35, p,0.001). For every 1-unit reduction in femoral neck T score, there was a 22% increased risk of myocardial ischemia after values were adjusted for age and other patient characteristics (95% CI, 1.06-1.41, p = 0.004). Overall after adjustments, patients with a low BMD who were referred for exercise echocardiographic stress testing had a 43% greater risk of myocardial ischemia than did patients with normal ...

...BEDFORD Mass. Nov. 9 /- Hologic Inc. (Hologi... Highlights of the quarter include: Reve...Fourth quarter fiscal 2009 revenues totaled $402.8 million a decrease...For the fourth quarter of fiscal 2009 Hologic reported net income of ...,Hologic,Announces,Fourth,Quarter,and,Fiscal,2009,Operating,Results,medicine,advanced medical technology,medical laboratory technology,medical device technology,latest medical technology,Health

The FDA has granted emergency use authorization for COVID-19-related diagnostic tests to Hologic (NSDQ:HOLX) and Laboratory Corporation of America (NYSE:LH).. Hologic described its new Panther Fusion SARS-CoV-2 assay as a molecular diagnostic test that detects SARS-CoV-2, the virus that causes COVID-19. The automated Panther high-throughput system is widely used across the U.S., can provide results in less than three hours and process up to 1,150 coronavirus tests in a 24-hour period, according to the Marlborough, Mass.-based company.. Hologic also said it expects to provide its laboratory customers with tens of thousands of SARS-CoV-2 tests this month as it ramps up production capacity. Starting in April, Hologic expects to produce nearly 600,000 SARS-CoV-2 tests per month, representing a 12-fold increase in the companys prior manufacturing capacity for similar tests that run on the Panther Fusion system.. Panther Fusion can also simultaneously test for other common respiratory viruses, and ...