DocumentCode
871514
Title
A new method for estimating the acoustic attenuation coefficient of tissue from reflected ultrasonic signals
Author
Liu, Dong-lai ; Saito, Masao
Author_Institution
Inst. of Med. Electron., Tokyo Univ., Japan
Volume
8
Issue
1
fYear
1989
fDate
3/1/1989 12:00:00 AM
Firstpage
107
Lastpage
110
Abstract
The parameter characterizing the acoustic attenuation in soft tissues is an indicator of tissue state. A method which features autoregressive deconvolution and spectral smoothing is proposed for estimation of the parameter from ultrasonic signals reflected from the tissue. The results of simulation and of processing actual liver data show that the standard deviation of the estimation is approximately halved by this method, compared to the traditional spectral differences method
Keywords
biomedical ultrasonics; ultrasonic absorption; acoustic attenuation coefficient; autoregressive deconvolution; liver; medical ultrasound; reflected ultrasonic signals; soft tissues; spectral differences method; spectral smoothing; tissue state; Attenuation; Biological tissues; Clinical diagnosis; Deconvolution; Frequency estimation; Liver; Pathology; Reflection; Signal processing; Smoothing methods;
fLanguage
English
Journal_Title
Medical Imaging, IEEE Transactions on
Publisher
ieee
ISSN
0278-0062
Type
jour
DOI
10.1109/42.20371
Filename
20371
Link To Document