Title :
Broadband ultrasound attenuation measurement of long bone using peak frequency of the echoes
Author :
Rui Zheng ; Le, L.H. ; Sacchi, Mauricio D. ; Lou, Edmond
Author_Institution :
Dept. of Phys., Univ. of Alberta, Edmonton, AB
fDate :
2/1/2009 12:00:00 AM
Abstract :
The traditional peak frequency formulation requires the knowledge of the signal wavelet. We improved and applied the method to estimate attenuation for homogeneous silicon rubber and bovine cortical bone without recourse to the wavelet assumption. The estimated values for rubber and bone samples are 6.59 plusmn 0.28 dB/MHz/cm and 4.59 plusmn 1.09 dB/MHz/cm, respectively, as compared with 6.33 plusmn 0.19 dB/ MHz/cm and 5.00 plusmn 1.10 dB/MHz/cm, respectively, by the spectral ratio method.
Keywords :
bioacoustics; bone; echo; silicone rubber; ultrasonic absorption; ultrasonic measurement; bovine cortical bone; broadband ultrasound attenuation measurement; echoes; homogeneous silicon rubber; long bone; signal wavelet; Acoustic noise; Attenuation measurement; Bones; Equations; Frequency estimation; Frequency measurement; Reflection; Reverberation; Ultrasonic imaging; Ultrasonic variables measurement; Algorithms; Animals; Cattle; Computer Simulation; Femur; Silicone Elastomers; Ultrasonography;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2009.1049
