A multi-row transducer array for adaptive imaging

Author

Wildes, D.G. ; Durocher, K.M. ; Hennessy, W.A. ; Lewandowsk, R.S. ; Rigby, K.W. ; Sleeter, J.K. ; Smith, L.S. ; Sogoian, G.C. ; Venkataramani, V.S. ; Bhave, A.A. ; David, J.J. ; Keres, L.J. ; Lillegard, G.A. ; Lu, X.M. ; Miller, D.P. ; Potrykus, G.L. ; St

Author_Institution

GE Corp. Res. & Dev., Niskayuna, NY, USA

Volume

2

fYear

1998

fDate

1998

Firstpage

1831

Abstract

Commercial arrays for medical imaging do not adequately sample the spatial variation of the speed of sound in human abdominal wall tissue. These arrays sense only the average properties of a region of tissue and are unable to achieve significant correction of aberrations. The authors have designed and built a multi-row 1.75 D transducer to support the development of algorithms for adaptive imaging. Electrical connections are made with a two-layer flexible printed circuit. A programmable multiplexer allows the use of large 1.25 D apertures for maximum sensitivity or small 1.75 D apertures for fine spatial sampling. Measurements made with a model aberration demonstrate that a multi-row probe is necessary for adaptive imaging

Keywords

biological tissues; biomedical transducers; biomedical ultrasonics; ultrasonic transducer arrays; ultrasonic velocity; adaptive imaging; algorithms development; commercial arrays; electrical connections; fine spatial sampling; human abdominal wall tissue; maximum sensitivity apertures; medical diagnostic imaging; model aberration; multirow transducer array; programmable multiplexer; sound speed spatial variation sampling; tissue region average properties; two-layer flexible printed circuit; Abdomen; Acoustic transducers; Adaptive arrays; Algorithm design and analysis; Apertures; Biomedical imaging; Biomedical transducers; Flexible printed circuits; Humans; Multiplexing;

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.1998.765307

Filename

765307