DocumentCode
1223618
Title
An Iterative, Parametric Spectral Estimation Technique for High-Resolution Pulse-Echo Ultrasound
Author
Meyer, Charles R.
Author_Institution
Biomedical Engineering Program, Carnegie-Mellon University, Pittsburgh, PA 15213, and the Department of Medicine, Allegheny General Hospital
Issue
4
fYear
1979
fDate
4/1/1979 12:00:00 AM
Firstpage
207
Lastpage
212
Abstract
Measurement of the slope of attenuation as a function of frequency to compute ultrasonic attenuation coefficients for thin slices of tissue with ultrasonic pulse-echo techniques is fraught with difficulties. Maximum amplitude measurements of the echo´s temporal record are subject to error from interference effects as well as nonsteady-state measurement problems. Power spectrums computed from selected time segments invariably include the effect of more than one echo wavetrain, and thus the effect of more than one tissue segment.
Keywords
Attenuation measurement; Biomedical measurements; Chirp; Computer displays; Echo interference; Frequency estimation; Pulse measurements; Scattering; Ultrasonic imaging; Ultrasonic variables measurement; Computers; Coronary Disease; Heart; Humans; Mathematics; Models, Biological; Ultrasonography;
fLanguage
English
Journal_Title
Biomedical Engineering, IEEE Transactions on
Publisher
ieee
ISSN
0018-9294
Type
jour
DOI
10.1109/TBME.1979.326559
Filename
4123031
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