B-mode image contrast improvement and 2-D strain estimation using satellite-view imaging method

Author

Yamakawa, Makoto ; Kondo, Kengo ; Shiina, Tsuyoshi

Author_Institution

Adv. Biomed. Eng. Res. Unit, Kyoto Univ., Kyoto, Japan

fYear

2009

fDate

20-23 Sept. 2009

Firstpage

2422

Lastpage

2425

Abstract

Ultrasound scanners are widely used in the medical field. However, the contrast of B-mode images is poorer than that of CT/MRI images, and only a 1-D blood-flow image or strain image is obtained. Therefore, we improved the contrast of B-mode images by measuring an object from many viewpoints using two or more probes (satellite-view imaging) and by transmitter dynamic focusing with a virtual-point sound source. We also measured 2-D strain with sufficient accuracy using this satellite-view imaging method and quantitatively evaluated tissue elasticity.

Keywords

biological tissues; biomechanics; biomedical ultrasonics; elasticity; medical image processing; strain measurement; 2D strain estimation; B-mode image contrast improvement; medical ultrasound scanners; satellite-view imaging method; tissue elasticity; transmitter dynamic focusing; virtual-point sound source; Acoustic imaging; Biomedical imaging; Capacitive sensors; Computed tomography; Magnetic resonance imaging; Probes; Strain measurement; Transmitters; Ultrasonic imaging; Ultrasonic variables measurement; 2-D strain ratio; satellite-view imaging; tissue elasticity; transmitter dynamic focusing; virtual-point sound source;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2009 IEEE International

Conference_Location

Rome

ISSN

1948-5719

Print_ISBN

978-1-4244-4389-5

Electronic_ISBN

1948-5719

Type

conf

DOI

10.1109/ULTSYM.2009.5441842

Filename

5441842