Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1998-09-10
1999-09-07
Manuel, George
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
A61B 800
Patent
active
059479027
ABSTRACT:
An apparatus and methods for determining a measure equivalent to broadband sound attenuation from transient or other measures derived from acoustic signals propagated through bone and, additionally, for using this measure for the calibration of an ultrasound bone analysis instrument. A synthetic mathematical filter corresponding to a given value of broadband ultrasound attenuation is applied to the signal propagated through a calibration of known or neutral acoustic properties. The value of the acoustic measure corresponding to the resultant waveform is determined and associated with the broadband ultrasound attenuation value corresponding to the synthetic mathematical filter. A model relating the acoustic measure to BUA values may thereby be established for subsequent clinical application.
REFERENCES:
patent: 5042489 (1991-08-01), Wiener et al.
patent: 5480422 (1996-01-01), Ben-Haim
Laugier et al., Ultrasound Images of the Os Calcis: a New Method of Assessment of Bone Status, Proceedings IEEE 1993 Ultrasonics Symposium, vol. 2, pp. 989-992, Oct. 31, 1993.
Buhler Joe P.
Goll Jeffrey H.
Imam Ali M.
Manuel George
Metra Biosystems, Inc.
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