Abstract
This study presents a new method based on short time Fourier analysis giving a local unbiased estimation of the attenuation in biological tissue. Short time Fourier analysis concepts are well adapted to process time echographic signals which are non stationary. The interest of Short Time Fourier Analysis is to give an estimation of the signal spectral composition as a function of time. It will be shown that the time dependence of the spectral centre of gravity allows to deduce easily the frequency dependant attenuation. The near field low pass filtering effect due to diffraction is emphasized. A numerical calibration technique developed for each transducer which corrects these effects is described.Experimental results obtained from tissue like phantom and from in vivo liver tissue are presented.
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References
R.B. Kuc, Statistical Estimation of the Acoustical Attenuation Slope for Liver Tissue, Ph. D Thesis, Columbia University, 78-2331 (1977).
R. Kuc and M. Schwartz, Estimating the Acoustic Attenuation Slope for Liver from Reflected Ultrasound Signals, IEEE Trans. Sonics Ultrasonics vol.SU-26, 353–362, Sept.1979
J. Ophir and N.F. Maklad, A New Stochastic C-Scan Technique for Attenuation Coefficient Measurements in Tissue Equivalent Material, presented at the 23rd Annual Meeting of the American Institute of Ultrasound in Medicine, San Diego, Calif, Oct. 1978.
M.O. Donnel, E.T. Jaynes, J.G. Miller, Mechanisms: Relationship between Ultrasonic Attenuation and Dispersion Tissue Characterization Meeting, Gaithersburg 1978.
M. Fink, Theoretical Study of Pulsed Echographic Focusing Procedures, Acoustical Imaging vol. 10, 437–453 (1982), Plenum.
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© 1982 Plenum Press, New York
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Fink, M., Hottier, F. (1982). Short Time Fourier Analysis and Diffraction Effect in Biological Tissue Characterization. In: Ash, E.A., Hill, C.R. (eds) Acoustical Imaging. Acoustical Imaging, vol 12. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-9780-9_45
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DOI: https://doi.org/10.1007/978-1-4613-9780-9_45
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-9782-3
Online ISBN: 978-1-4613-9780-9
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