Ultrasound transmission measurements through the os calcis
| Autor: | James A. Zagzebski, Ernest L. Madsen, Carmen Mesina, Richard B. Mazess, Phillip J. Rossman |
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| Rok vydání: | 1991 |
| Předmět: |
musculoskeletal diseases
Male Materials science Heel Bone density Endocrinology Diabetes and Metabolism Population Transducers Endocrinology Absorptiometry Photon Bone Density medicine Humans Orthopedics and Sports Medicine education Ultrasonography education.field_of_study Reproducibility business.industry Attenuation Ultrasound Reproducibility of Results Bone Diseases Metabolic Calcaneus medicine.anatomical_structure bacteria Densitometry business Biomedical engineering |
| Zdroj: | Calcified tissue international. 49(2) |
| ISSN: | 0171-967X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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