Results 211 to 220 of about 621,423 (276)

Dual-photon absorptiometry of the proximal tibia

Archives of Orthopaedic and Traumatic Surgery, 1987
Dual-photon absorptiometric bone-mineral assay, penetration tests, and axial compression tests of the proximal tibial epiphyses were carried out in 18 human cadaver knees. The reproducibility of bone mineral assay was within +/- 12% (95% tolerance limits).
C Hasling, S L Hansen, I Hvid, H H Hansen   +3 more
openaire   +3 more sources

Dual photon absorptiometry of the proximal tibia

Calcified Tissue International, 1989
Bone mineral content (BMC) and bone mineral density (BMD) of the proximal tibia were determined by dual photon absorptiometry on 44 women, aged 23-87 years. The area of the tibia measured was a 2.01 cm region immediately distal to the medial and lateral tuberosities.
Everett L. Smith, Checovich Mm, Kiratli Bj   +2 more
openaire   +3 more sources

Comparative assessment of dual-photon absorptiometry and dual-energy radiography.

Radiology, 1990
Dual-energy bone densitometry can be performed with two types of scanners. The traditional dual-photon absorptiometry (DPA) machines use an isotope source, whereas the newly introduced dual-energy radiography (DER) devices use an incorporated x-ray tube.
C. Glüer, P. Steiger, R. Selvidge, K. Elliesen-Kliefoth, C. Hayashi, H. Genant   +5 more
semanticscholar   +1 more source

Single X-ray absorptiometry: Performance characteristics and comparison with single photon absorptiometry [PDF]

Osteoporosis International, 1995
The aim of the present study was to evaluate a new device for measurement of forearm bone mass using the technique of single X-ray absorptiometry (SXA, DTX-100; Osteometer A/S, Rødovre, Denmark), and to compare the performance with the more traditional single photon absorptiometry (SPA, DT 100; Osteometer A/S, Rødovre, Denmark).
A. Møllgaard, B. J. Riis, J. Borg
openaire   +2 more sources

Quantitative digital radiography versus dual photon absorptiometry of the lumbar spine.

Journal of Clinical Endocrinology and Metabolism, 1988
Lumbar spine bone mineral density (BMD) was measured by quantitative digital radiography, a new dual energy x-ray technique, and by 153Gd dual photon absorptiometry (DPA) in 85 patients.
T. Kelly, D. Slovik, D. Schoenfeld, R. Neer   +3 more
semanticscholar   +1 more source

The reproducibility of single photon absorptiometry in a clinical setting

European Journal of Nuclear Medicine, 1989
The reproducibility of single photon absorptiometry (SPA) results for detection of changes in bone mineral content (BMC) was evaluated in a clinical setting. During a period of 18 months with 4 different sources, the calibration scans of an aluminium standard had a variation of less than 1% unless the activity of the 125I source was low.
Ernest K. J. Pauwels, J. A. K. Blokland, Roelf Valkema, Socrates E. Papapoulos, O. L. M. Bijvoet   +4 more
openaire   +3 more sources

Bone mineral content of femoral bone and the lumbar spine measured in women with fracture of the femoral neck by dual photon absorptiometry.

Clinical Orthopaedics and Related Research, 1983
The bone mineral content (BMC) in the lumbar spine, femoral neck, and femoral shaft in 46 women ranging in age from 60 to 89 years with fractures of the femoral neck was measured by dual photon absorptiometry and compared with that of 38 healthy women in
H. Bohr, O. Schaadt
semanticscholar   +1 more source

Single-Photon Absorptiometry [PDF]

, 1988
Single-photon absorptiometry (SPA) was first described by Cameron and Sorenson (1963) in an effort to overcome the problems inherent in the use of film densitometry. The basic configuration for the single-photon systems commercially available today was introduced in 1972 (Mazess and Cameron, 1972).
openaire   +1 more source

A Renal Transplant Seen on Dual Photon Absorptiometry

Clinical Nuclear Medicine, 1993
A 25-year-old man who had a chronic rejection of renal transplantation performed 4 years earlier develops seccondary hyperparathyroidism. Dual-photon absorptiometry of the lumbar spine and right femur were performed to evaluate changes in bone mass. A roundish highdensity area was seen in the right iliac region.
M. Huguet, Pere Bassa, Francesca Pons, Montserrat Solà   +3 more
openaire   +3 more sources

Marked disparity between trabecular and cortical bone loss with age in healthy men. Measurement by vertebral computed tomography and radial photon absorptiometry.

Annals of Internal Medicine, 1984
To define age-related changes in bone mineral content in normal men, we measured radial (proximal and distal) and vertebral bone mineral content in 62 men aged 30 to 92 years.
D. Meier, E. Orwoll, J. M. Jones
semanticscholar   +1 more source