DocumentCode :
2807854
Title :
Quantitative ultrasonic attenuation image of the biological tissues using the inverse scattering technique
Author :
Yamada, Akira ; Kuroiwa, Masaki
Author_Institution :
Tokyo Univ. of Agric. & Technol., Japan
Volume :
2
fYear :
1998
fDate :
1998
Firstpage :
1651
Abstract :
The authors recently developed the backward propagation Rytov approximation to improve significantly the quantitative precision of an inverse scattering acoustic parameter image of a weak scattering tissue-like object in the lossless case. In the present paper, the quantitative precision of the inverse scattering image was examined with particular emphasis on the attenuation image. Moreover, to avoid the attenuation image degradation encountered when the sound speed contrast of the object is large, a compensation method for extending the limit of the weak scattering approximation is presented. From the test examination, the quantitative precision, of both the sound speed and the attenuation images, is proved to be sufficients
Keywords :
acoustic tomography; biological tissues; biomedical ultrasonics; image reconstruction; inverse problems; medical image processing; smoothing methods; ultrasonic absorption; US diffraction tomography; backward propagation Rytov approximation; biological tissues; compensation method; image degradation; image reconstruction; inverse scattering technique; lossless case; quantitative precision; quantitative ultrasonic attenuation image; smoothing filter; sound speed; weak scattering approximation; weak scattering tissue-like object; Acoustic propagation; Acoustic scattering; Attenuation; Biological tissues; Degradation; Frequency; Image reconstruction; Inverse problems; Propagation losses; Scattering parameters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
ISSN :
1051-0117
Print_ISBN :
0-7803-4095-7
Type :
conf
DOI :
10.1109/ULTSYM.1998.765263
Filename :
765263
Link To Document :
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