Comparison of nonlinear and linear imaging techniques at high frequency

Author

Cherin, E. ; Poulsen, J.K. ; van der Steen, A.F.W. ; Foster, F.S.

Author_Institution

Sunnybrook & Women´´s Coll. Health Sci. Centre, Toronto, Ont., Canada

Volume

2

fYear

2000

fDate

36800

Firstpage

1639

Abstract

High frequency second harmonic imaging was compared with fundamental imaging in terms of lateral resolution, depth of field and image quality. In order to assess the fundamental beam at 20 MHz, the harmonic beam at 40 MHz, and the fundamental beam at 40 MHz of a 40 MHz broadband transducer, transmission measurements were performed using a hydrophone. The beam profile obtained using each of these techniques was estimated in a tissue-mimicking phantom. Image quality was evaluated in phantom and mouse tissue in vitro

Keywords

biological tissues; biomedical ultrasonics; harmonic generation; hydrophones; image resolution; ultrasonic transducers; ultrasonic transmission; 20 MHz; 40 MHz; beam profile; broadband transducer; depth of field; fundamental beam; fundamental imaging; harmonic beam; high frequency; hydrophone; image quality; in vitro; lateral resolution; linear imaging techniques; mouse tissue; nonlinear imaging techniques; phantom tissue; second harmonic imaging; tissue-mimicking phantom; transmission measurements; Frequency; High-resolution imaging; Image quality; Image resolution; Imaging phantoms; In vitro; Mice; Performance evaluation; Sonar equipment; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2000 IEEE

Conference_Location

San Juan

ISSN

1051-0117

Print_ISBN

0-7803-6365-5

Type

conf

DOI

10.1109/ULTSYM.2000.921638

Filename

921638