PMN-PT/Epoxy 1-3 composite based ultrasonic transducer for dual-modality photoacoustic and ultrasound endoscopy

Yan Li; Gengxi Lu; Jason J. Chen; Joseph C. Jing; Tiancheng Huo; Ruimin Chen; Laiming Jiang; Qifa Zhou; Zhongping Chen

Photoacoustics (Sep 2019)

PMN-PT/Epoxy 1-3 composite based ultrasonic transducer for dual-modality photoacoustic and ultrasound endoscopy

Yan Li,
Gengxi Lu,
Jason J. Chen,
Joseph C. Jing,
Tiancheng Huo,
Ruimin Chen,
Laiming Jiang,
Qifa Zhou,
Zhongping Chen

Affiliations

Yan Li: Beckman Laser Institute, University of California, Irvine, Irvine, CA 92617, USA; Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92697, USA
Gengxi Lu: Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA; Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
Jason J. Chen: Beckman Laser Institute, University of California, Irvine, Irvine, CA 92617, USA; Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92697, USA
Joseph C. Jing: Beckman Laser Institute, University of California, Irvine, Irvine, CA 92617, USA; Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92697, USA
Tiancheng Huo: Beckman Laser Institute, University of California, Irvine, Irvine, CA 92617, USA
Ruimin Chen: Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA
Laiming Jiang: Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
Qifa Zhou: Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA; Roski Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
Zhongping Chen: Beckman Laser Institute, University of California, Irvine, Irvine, CA 92617, USA; Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92697, USA; Corresponding author at: Beckman Laser Institute, University of California, Irvine, Irvine, CA 92617, USA.

Journal volume & issue: Vol. 15

Abstract

Read online

Endoscopic dual-modality photoacoustic (PA) and ultrasound (US) imaging has the capability of providing morphology and molecular information simultaneously. An ultrasonic transducer was applied for detecting PA signals and performing US imaging which determines the sensitivity and performance of a dual-modality PA/US system. In our study, a miniature single element 32-MHz lead magnesium niobate-lead titanate (PMN-PT) epoxy 1–3 composite based ultrasonic transducer was developed. A miniature endoscopic probe based on this transducer has been fabricated. Using the dual modality PA/US system with a PMN-PT/epoxy 1–3 composite based ultrasonic transducer, phantom and in vivo animal studies have been conducted to evaluate the performance. The preliminary results show enhanced bandwidths of the new ultrasonic transducer and improved signal-to-noise ratio of PA and US images of rat colorectal wall compared with PMN-PT and lead zirconate titanate (PZT) composite based ultrasonic transducers. Keywords: Photoacoustic imaging, Ultrasound imaging, Endoscopic imaging, Gastrointestinal, Ultrasonic transducer, PMN-PT epoxy 1-3 composite, Composite based ultrasonic transducer

Published in Photoacoustics

ISSN: 2213-5979 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics: Acoustics. Sound; Science: Physics: Optics. Light
Website: http://www.journals.elsevier.com/photoacoustics/

About the journal