Bias-sensitive crossed-electrode relaxor 2D arrays for 3D photoacoustic imaging

Chris Ceroici; Katherine Latham; Ryan Chee; Jeremy A. Brown; Roger J. Zemp

doi:10.1117/12.2288854

19 February 2018 Bias-sensitive crossed-electrode relaxor 2D arrays for 3D photoacoustic imaging

Chris Ceroici, Katherine Latham, Ryan Chee, Jeremy A. Brown, Roger J. Zemp

Proceedings Volume 10494, Photons Plus Ultrasound: Imaging and Sensing 2018; 1049420 (2018) https://doi.org/10.1117/12.2288854
Event: SPIE BiOS, 2018, San Francisco, California, United States

Abstract

We introduce novel bias-sensitive piezoelectric transducer (relaxor) arrays for 3D photoacoustic imaging. A 64×64 element relaxor array using a crossed electrode or Top-Orthogonal to Bottom-Electrode (TOBE) wiring configuration is used to receive photoacoustic data from two crossed wires with 17.8 um diameters in an intralipid medium. A 3D image was then reconstructed. By biasing a column and receiving along a row, individual elements can be isolated for readout of signals from all elements using bias-switching-based multiplexing. We demonstrate a reconstruction technique called Hadamard-bias encoding with dynamic receive beamforming in which, rather than using a single column to index an array element, multiple columns are biased simultaneously allowing for more receiving elements and substantially improved SNR. Ongoing work will investigate in vivo imaging. The proposed arrays represent a new paradigm for 3D photoacoustic imaging.

Conference Presentation

Citation Download Citation

Chris Ceroici, Katherine Latham, Ryan Chee, Jeremy A. Brown, and Roger J. Zemp "Bias-sensitive crossed-electrode relaxor 2D arrays for 3D photoacoustic imaging", Proc. SPIE 10494, Photons Plus Ultrasound: Imaging and Sensing 2018, 1049420 (19 February 2018); https://doi.org/10.1117/12.2288854

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available