Catheter mounted Doppler ultrasound transducers

Author

Ritter, T.A. ; Shung, K.K. ; Voie, A. ; Moehring, M.

Author_Institution

NIH Resource Center for Med. Ultrasonic Transducer Technol., Pennsylvania State Univ., University Park, PA, USA

Volume

2

fYear

2000

fDate

36800

Firstpage

1223

Abstract

A transducer was designed and fabricated for assessment of cochlear blood flow using 12.5 MHz microvascular Doppler ultrasonography. The design includes a 2-2 composite element, front acoustic matching layers, a rear “unmatching” layer, electrical tuning, and a 0.5 mm diameter brass core. Tests indicate low insertion loss, performance comparable to model predictions, and effective detection of cochlear blood flow

Keywords

Doppler measurement; biomedical transducers; biomedical ultrasonics; blood flow measurement; ear; ultrasonic transducers; 0.5 mm; 12.5 MHz; 2-2 composite element; brass core; catheter mounted Doppler ultrasound transducers; cochlear blood flow assessment; cochlear blood flow detection; electrical tuning; front acoustic matching layers; insertion loss; medical diagnostic imaging; microvascular Doppler ultrasonography; rear unmatching layer; Acoustic testing; Acoustic transducers; Blood flow; Catheters; Insertion loss; Performance loss; Predictive models; Ultrasonic imaging; Ultrasonic transducers; Ultrasonography;

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.2000.921543

Filename

921543