| Literature DB >> 1913288 |
J A Zagzebski1, P J Rossman, C Mesina, R B Mazess, E L Madsen.
Abstract
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.Entities:
Mesh:
Year: 1991 PMID: 1913288 DOI: 10.1007/bf02565130
Source DB: PubMed Journal: Calcif Tissue Int ISSN: 0171-967X Impact factor: 4.333