A Study of an Annular Array CMUT Device for the making of Forward Looking IVUS

An annular array CMUT was designed and fabricated, and its ultrasonic image was obtained for the estimation of the image resolution. The center frequency of CMUT was 20 MHz and its frequency bandwidth was over 100%. We calculated the array factors of each arrays depending on the distances and the an...

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Bibliographic Details
Published in2021 IEEE International Ultrasonics Symposium (IUS) pp. 1 - 4
Main Authors Lee, Seungmok, Ikeda, Junji
Format Conference Proceeding
LanguageEnglish
Published IEEE 11.09.2021
Subjects
annular array
CMUT
Estimation
forward-looking
Image resolution
Imaging
Metals
ultrasonic image
Ultrasonic imaging
Ultrasonic transducer arrays
Wires
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Summary:An annular array CMUT was designed and fabricated, and its ultrasonic image was obtained for the estimation of the image resolution. The center frequency of CMUT was 20 MHz and its frequency bandwidth was over 100%. We calculated the array factors of each arrays depending on the distances and the angles between the transducer elements. An ultrasonic image of a metal wire having 0.5 mm diameter could be obtained by Rx beamforming. This array device can be used to develop a near-field forward-looking array for the integration on a Forward Looking (FL) IVUS (Intravascular Ultrasound) catheter.
ISSN:1948-5727
DOI:10.1109/IUS52206.2021.9593572