Single x-ray transmission system for bone mineral density determination

2011 ◽  
Vol 82 (12) ◽  
pp. 125105 ◽  
Author(s):  
Daniel Jimenez-Mendoza ◽  
Diego G. Espinosa-Arbelaez ◽  
Astrid L. Giraldo-Betancur ◽  
Margarita I. Hernandez-Urbiola ◽  
Damian Vargas-Vazquez ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Transmission System ◽  
Mineral Density ◽  
X Ray ◽  
Density Determination

Lateral scanning of the lumbar spine: Bone mineral density determination with dual energy X-ray absorptiometry

1991 ◽  
Vol 9 (S1) ◽  
pp. 41-43 ◽  
Author(s):  
Masao Fukunaga ◽  
Tatsushi Tomomitsu ◽  
Nobuaki Otsuka ◽  
Shimato Ono ◽  
Hiroko Imai ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Lumbar Spine ◽  
Bone Mineral ◽  
Dual Energy ◽  
Spine Bone Mineral Density ◽  
Mineral Density ◽  
X Ray ◽  
Density Determination

scholarly journals Anxiety Levels Predict Bone Mineral Density in Postmenopausal Women Undergoing Oral Bisphosphonates: A Two-Year Follow-Up

2021 ◽  
Vol 18 (15) ◽  
pp. 8144
Author(s):  
Gabriella Martino ◽  
Federica Bellone ◽  
Carmelo M. Vicario ◽  
Agostino Gaudio ◽  
Andrea Caputo ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Rating Scale ◽  
Osteoporotic Fractures ◽  
Oral Bisphosphonates ◽  
Mineral Density ◽  
X Ray ◽  
Hamilton Anxiety Rating Scale ◽  
Anxiety Levels

Clinical psychological factors may predict medical diseases. Anxiety level has been associated with osteoporosis, but its role on bone mineral density (BMD) change is still unknown. This study aimed to investigate the association between anxiety levels and both adherence and treatment response to oral bisphosphonates (BPs) in postmenopausal osteoporosis. BMD and anxiety levels were evaluated trough dual-energy X-ray absorptiometry and the Hamilton Anxiety Rating Scale (HAM-A), respectively. Participants received weekly medication with alendronate or risedronate and were grouped according to the HAM-A scores into tertiles (HAM-A 3 > HAM-A 2 > HAM-A 1). After 24 months, BMD changes were different among the HAM-A tertiles. The median lumbar BMD change was significantly greater in both the HAM-A 2 and HAM-A 3 in comparison with the HAM-A 1. The same trend was observed for femoral BMD change. Adherence to BPs was >75% in 68% of patients in the HAM-A 1, 79% of patients in the HAM-A 2, and 89% of patients in the HAM-A 3 (p = 0.0014). After correcting for age, body mass index, depressive symptoms, and the 10-yr. probability of osteoporotic fractures, anxiety levels independently predicted lumbar BMD change (β = 0.3417, SE 0.145, p = 0.02). In conclusion, women with higher anxiety levels reported greater BMD improvement, highlighting that anxiety was associated with adherence and response to osteoporosis medical treatment, although further research on this topic is needed.

scholarly journals POS0045 LEAST SIGNIFICANT CHANGE IN BONE DENSITOMETRY IN PATIENTS WITH OBESITY

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 227.2-228
Author(s):  
D. Claire ◽  
M. Geoffroy ◽  
L. Kanagaratnam ◽  
C. Isabelle ◽  
A. Hittinger ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Lumbar Spine ◽  
General Population ◽  
Bone Mineral ◽  
Bone Densitometry ◽  
Dual Energy ◽  
Mineral Density ◽  
Least Significant Change ◽  
X Ray ◽  
Significant Change

Background:Dual energy X-ray absoprtiometry is the reference method to mesure bone mineral density (1). Loss of bone mineral density is significant if it exceeds the least significant change. The threshold value used in general population is 0,03 g/cm2 (2). Patients with obesity are known for having a higher bone mineral density due to metabolism and physiopathology characteristics (3,4).Objectives:The aim of our study was to determine the least significant change in bone densitometry in patients with obesity.Methods:We conducted an interventionnal study in 120 patients with obesity who performed a bone densitometry. We measured twice the bone mineral density at the lumbar spine, the femoral neck and the total hip in the same time (5,6). We determined the least significant change in bone densitometry from each pair of measurements, using the Bland and Altman method. We also determined the least significant change in bone densitometry according to each stage of obesity.Results:The least significant change in bone densitometry in patients with obesity is 0,046g/cm2 at the lumbar spine, 0.069 g/cm2 at the femoral neck and 0.06 g/cm2 at the total hip.Conclusion:The least significant change in bone densitometry in patients with obesity is higher than in general population. These results may improve DXA interpretation in this specific population, and may personnalize their medical care.References:[1]Lees B, Stevenson JC. An evaluation of dual-energy X-ray absorptiometry and comparison with dual-photon absorptiometry. Osteoporos Int. mai 1992;2(3):146-52.[2]Briot K, Roux C, Thomas T, Blain H, Buchon D, Chapurlat R, et al. Actualisation 2018 des recommandations françaises du traitement de l’ostéoporose post-ménopausique. Rev Rhum. oct 2018;85(5):428-40.[3]Shapses SA, Pop LC, Wang Y. Obesity is a concern for bone health with aging. Nutr Res N Y N. mars 2017;39:1-13.[4]Savvidis C, Tournis S, Dede AD. Obesity and bone metabolism. Hormones. juin 2018;17(2):205-17.[5]Roux C, Garnero P, Thomas T, Sabatier J-P, Orcel P, Audran M, et al. Recommendations for monitoring antiresorptive therapies in postmenopausal osteoporosis. Jt Bone Spine Rev Rhum. janv 2005;72(1):26-31.[6]Ravaud P, Reny JL, Giraudeau B, Porcher R, Dougados M, Roux C. Individual smallest detectable difference in bone mineral density measurements. J Bone Miner Res. août 1999;14(8):1449-56.Disclosure of Interests:None declared.

scholarly journals LOW BONE MINERAL DENSITY IN BRAZILIAN PATIENTS AT DIAGNOSIS OF CELIAC DISEASE

2015 ◽  
Vol 52 (3) ◽  
pp. 176-179 ◽  
Author(s):  
Joyce Timmermans Pires da SILVA ◽  
Renato M NISIHARA ◽  
Luís Roberto KOTZE ◽  
Márcia OLANDOSKI ◽  
Lorete Maria da Silva KOTZE
Keyword(s):  
Bone Mineral Density ◽  
Celiac Disease ◽  
Bone Mineral ◽  
Disease Diagnosis ◽  
Bone Fragility ◽  
Mineral Density ◽  
X Ray ◽  
Low Bone Mineral Density ◽  
Celiac Disease Diagnosis ◽  
Male Subjects

BackgroundLow bone mineral density is considered an extra-intestinal manifestation of celiac disease with reduced bone mass, increased bone fragility, and risk of fractures. Celiac disease is considered a condition at high risk for secondary osteoporosis and the evaluation of bone density is very important in the clinical management of these patients.ObjectiveThe present study aimed to investigate bone alterations in celiac patients from Curitiba, South Region of Brazil at diagnosis, correlating the findings with age and gender.MethodsPatients who were included in the study were attended to in a private office of the same physician from January 2009 to December 2013. The diagnosis of celiac disease was done through clinical, serological and histological findings. All data were collected from the medical charts of the patients. After the diagnosis of celiac disease, evaluation for low bone mineral density was requested by dual-energy X-ray absorptiometry (DEXA). DEXA bone densitometer was used to estimate low bone mineral density at the lumbar spine and femur.ResultsA total of 101 patients, 82 (81.2%) female and 19 (18.8%) male subjects, with mean age of 39.0±3.03 years were included. At celiac disease diagnosis, 36 (35.6%) were younger than 30 years, 41 (40.6%) were between 31 and 50 years, and 24 (23.8%) were older than 50 years. Among the evaluated patients, 69 (68.3%) presented low bone mineral density, being 47% with osteopenia and 32% with osteoporosis. Patients who were older than 51 years and diagnosed with celiac disease presented low bone mineral density in 83.3% (20/24) of the cases. As expected, age influenced significantly the low bone mineral density findings. Among women, low bone mineral density was present with high frequency (60%) from 30 to 50 years. In patients diagnosed older than 60 years (n=8), all the women (n=5) and two of the three men had osteoporosis.ConclusionThis study demonstrated that 69% of Brazilian patients with celiac disease at diagnosis had low bone mineral density, being more frequent in women older than 50 years.

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