The relationship between ultrasonic backscatter and bone mineral density in human calcaneus

Backscatter and attenuation coefficients were measured from 24 human calcanei in vitro. The logarithm of the backscatter coefficient at 500 kHz showed moderate correlations with bone mineral density (r=0.81, 95% confidence interval: 0.59-0.91) and attenuation (r=0.79, 95% CI: 0.56-0.91). These resul...

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Veröffentlicht in:	IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2000-07, Vol.47 (4), p.777-780
Hauptverfasser:	Wear, K.A., Armstrong, D.W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustical measurements and instrumentation Acoustics Aging Attenuation Backscatter Backscattering Biological and medical sciences Bones Confidence intervals Costs Density Exact sciences and technology Ferroelectric materials Fundamental areas of phenomenology (including applications) Human Humans In vitro Investigative techniques, diagnostic techniques (general aspects) Joints Medical sciences Minerals Osteoporosis Physics Ultrasonic imaging Ultrasonic investigative techniques
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Beschreibung
Zusammenfassung:	Backscatter and attenuation coefficients were measured from 24 human calcanei in vitro. The logarithm of the backscatter coefficient at 500 kHz showed moderate correlations with bone mineral density (r=0.81, 95% confidence interval: 0.59-0.91) and attenuation (r=0.79, 95% CI: 0.56-0.91). These results suggest that backscatter measurements may be useful in the diagnosis of osteoporosis.
ISSN:	0885-3010 1525-8955
DOI:	10.1109/58.852057