DocumentCode :
3093796
Title :
Compensating the combined effects of absorption and dispersion in plane wave pulse-echo ultrasound imaging using sparse recovery
Author :
Schiffner, Martin F. ; Schmitz, Guido
Author_Institution :
Med. Eng., Ruhr-Univ. Bochum, Bochum, Germany
fYear :
2013
fDate :
21-25 July 2013
Firstpage :
573
Lastpage :
576
Abstract :
We extended our concept for fast image acquisition in pulse-echo ultrasound imaging based on sparse recovery (SR) to compensate for the combined effects of absorption and dispersion. Using measurement data obtained from a multi-tissue phantom (A) and a human thyroid (B, in vivo), we demonstrated that image quality can be significantly improved by this extension. Emitting only two steered plane waves, our extended SR-based concept outperformed synthetic aperture (SA) imaging (128 wave emissions), delay-and-sum beamforming (11 wave emissions), and minimum variance beamforming (11 wave emissions) in terms of contrast for object A. Lateral -6 dB-widths were similar to SA. For object B, SR improved the visibility of anatomical contours in contrast to the algorithms used for comparison.
Keywords :
biological organs; biomedical ultrasonics; medical image processing; phantoms; ultrasonic absorption; ultrasonic dispersion; ultrasonic imaging; anatomical contour visibility; delay-and-sum beamforming; extended SR-based concept; fast image acquisition; human thyroid; image quality; minimum variance beamforming; multitissue phantom; plane wave pulse-echo ultrasound imaging absorption; plane wave pulse-echo ultrasound imaging dispersion; sparse recovery; steered plane waves; synthetic aperture imaging; wave emission; Absorption; Acoustics; Dispersion; Image reconstruction; Imaging; Ultrasonic imaging; Wires;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
ISSN :
1948-5719
Print_ISBN :
978-1-4673-5684-8
Type :
conf
DOI :
10.1109/ULTSYM.2013.0148
Filename :
6724905
Link To Document :
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