50 MHz color flow mapping

Author

Ferrara, K. Whittaker ; Zagar, B. ; Silverman, R. ; Aggarwal, K. ; Dayton, P. ; Sokil-Melgar, J. ; Aslanidis, Y.

Author_Institution

Virginia Univ., Charlottesville, VA, USA

Volume

2

fYear

1995

fDate

7-10 Nov 1995

Firstpage

1497

Abstract

Following our previous work on the estimation of blood velocity using high frequency ultrasound, we demonstrate the generation of in-vivo two dimensional (2D) color flow maps. In this paper, using a transducer with a nominal center frequency of 50 MHz, we demonstrate that velocities below 1 mm/s can be distinguished from the surrounding tissue. High resolution 2D maps of very low velocity blood flow within the ciliary body and processes of the rabbit eye are presented

Keywords

acoustic correlation; biomedical ultrasonics; blood flow measurement; eye; image colour analysis; image resolution; medical image processing; ultrasonic transducers; 50 MHz; blood velocity estimation; ciliary body; color flow mapping; high frequency ultrasound; high resolution 2D maps; in-vivo two dimensional color flow maps; rabbit eye; transducer; very low velocity blood flow; Bandwidth; Blood flow; Control systems; Frequency estimation; Pulse amplifiers; Rabbits; Scattering; Space vector pulse width modulation; Ultrasonic transducers; Velocity control;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1995. Proceedings., 1995 IEEE

Conference_Location

Seattle, WA

ISSN

1051-0117

Print_ISBN

0-7803-2940-6

Type

conf

DOI

10.1109/ULTSYM.1995.495839

Filename

495839