Ultrasound transmission measurements through the os calcis

A method of measuring ultrasonic propagation in the os calcis was devised for assessing bone properties in humans. Speed-of-sound (SOS) and broadband ultrasound attenuation (BUA) were measured using broadband acoustic pulses transmitted and received by a pair of focused transducers. The transducers...

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Bibliographic Details
Published in:Calcified tissue international 1991-08, Vol.49 (2), p.107-111
Main Authors: ZAGZEBSKI, J. A, ROSSMAN, P. J, MESINA, C, MAZESS, R. B, MADSEN, E. L
Format: Article
Language:English
Subjects:
Absorptiometry, Photon
Biological and medical sciences
Bone Density
Bone Diseases, Metabolic - diagnostic imaging
Calcaneus - diagnostic imaging
Diverse techniques
Fundamental and applied biological sciences. Psychology
Humans
Male
Molecular and cellular biology
Reproducibility of Results
Space life sciences
Transducers
Ultrasonography - instrumentation
Ultrasonography - methods
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Summary:A method of measuring ultrasonic propagation in the os calcis was devised for assessing bone properties in humans. Speed-of-sound (SOS) and broadband ultrasound attenuation (BUA) were measured using broadband acoustic pulses transmitted and received by a pair of focused transducers. The transducers are mounted coaxially in a water tank with the subject's heel in between. Reproducibility of results in an adult male was 10% for the BUA and 1.2% for the SOS. Both SOS and BUA changed when the transmission path through the os calcis was varied. For a population of normal male subjects, SOS and BUA were correlated with densitometry results on the os calcis, but less well correlated to area density at remote sites.
ISSN:0171-967X
1432-0827
DOI:10.1007/bf02565130