Quantitative ultrasound predicts bone mineral density and failure load in human lumbar vertebrae

2007 ◽  
Vol 22 (6) ◽  
pp. 623-629 ◽  
Author(s):  
P.H.F. Nicholson ◽  
R. Alkalay
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Quantitative Ultrasound ◽  
Failure Load ◽  
Lumbar Vertebrae ◽  
Mineral Density

Bio-impedance and quantitative ultrasound to measure bone mineral density in post-menopausal women from a rural Mexican community

2016 ◽  
Author(s):  
Fernando Blanco-Rodriguez ◽  
Nicole Ellis-Infante ◽  
Victor Lopez-Rivas ◽  
Sherlin May-Kim ◽  
Charlotte Pickett ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Quantitative Ultrasound ◽  
Mineral Density ◽  
Menopausal Women ◽  
Mexican Community ◽  
Post Menopausal ◽  
Measure Bone Mineral Density

Lumbar osteoarthritis, bone mineral density, and quantitative ultrasound

2000 ◽  
Vol 12 (5) ◽  
pp. 360-365 ◽  
Author(s):  
L. Dalle Carbonare ◽  
S. Giannini ◽  
L. Sartori ◽  
M. Nobile ◽  
M. Ciuffreda ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Quantitative Ultrasound ◽  
Mineral Density

scholarly journals AGE AND SEX-RELATED STRUCTURAL AND FUNCTIONAL CHANGES OF BONE REMODELING DURING SIMULTATE ABDOMEN CT-SCANNING

2020 ◽  
Vol 73 (1) ◽  
pp. 91-94
Author(s):  
Nazar M. Kostyshyn ◽  
Liubov P. Kostyshyn ◽  
Mechyslav R. Gzhegotskyi
Keyword(s):  
Computed Tomography ◽  
Bone Mineral Density ◽  
Bone Mass ◽  
Old Age ◽  
Bone Mineral ◽  
Lumbar Vertebrae ◽  
Middle Adulthood ◽  
Mineral Density ◽  
Functional Changes ◽  
Early Old Age

The aim of investigation was to study the structural and functional conditions of cortical and trabecular layers of lumbar vertebrae L1-L5 in different age groups. Materials and methods: In order to assess BMD of the lumbar vertebrae 102 people18 to 75 years old was examined. Study of bone mineral density cortical and trabecular layer of lumbar vertebrae (L1-L5) performed by computed tomography in Hounsfield Units (HU) in terms of standard deviation (SD). Results: The results of computed tomography showed a direct relationship of bone mineral density of lumbar vertebrae with age of examined persons. Osteoporosis and osteopenia was registered in 15% of men and 30% women in middle adulthood, in late adulthood – 35% and 50% respectively. During early old age osteopenia and osteoporosis are observed in 37,5% and 25% of men and 26% and 64% women. Osteoporosis in the middle old age has been reported in 50% of men and 75% of women Conclusions: Results of the study showed a direct link between mineral density, age and gender. The middle adulthood age period was characterized by the highest mineral mass compared with the other age periods. Then there is a loss of bone mass throughout life, and with the onset of aging osteopenia and osteoporosis are recorded. It was investigated that in the early old age, loss of bone mass is mainly observed in female.

scholarly journals Recovery Effects of a 180 mT Static Magnetic Field on Bone Mineral Density of Osteoporotic Lumbar Vertebrae in Ovariectomized Rats

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Shenzhi Xu ◽  
Hideyuki Okano ◽  
Naohide Tomita ◽  
Yoshito Ikada
Keyword(s):  
Magnetic Field ◽  
Bone Mineral Density ◽  
Bone Mineral ◽  
Static Magnetic Field ◽  
Lumbar Vertebrae ◽  
Exposed Group ◽  
Female Rats ◽  
Ovariectomized Rats ◽  
Moderate Intensity ◽  
Mineral Density

The effects of a moderate-intensity static magnetic field (SMF) on osteoporosis of the lumbar vertebrae were studied in ovariectomized rats. A small disc magnet (maximum magnetic flux density 180 mT) was implanted to the right side of spinous process of the third lumbar vertebra. Female rats in the growth stage (10 weeks old) were randomly divided into 4 groups: (i) ovariectomized and implanted with a disc magnet (SMF); (ii) ovariectomized and implanted with a nonmagnetized disc (sham); (iii) ovariectomized alone (OVX) and (vi) intact, nonoperated cage control (CTL). The blood serum 17--estradiol (E2) concentrations were measured by radioimmunoassay, and the bone mineral density (BMD) values of the femurs and the lumbar vertebrae were assessed by dual energy X-ray absorptiometry. The E2concentrations were statistically significantly lower for all three operated groups than those of the CTL group at the 6th week. Although there was no statistical significant difference in the E2concentrations between the SMF-exposed and sham-exposed groups, the BMD values of the lumbar vertebrae proximal to the SMF-exposed area statistically significantly increased in the SMF-exposed group than in the sham-exposed group. These results suggest that the SMF increased the BMD values of osteoporotic lumbar vertebrae in the ovariectomized rats.

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