PMN-PT/Epoxy 1-3 composite based ultrasonic transducer for dual-modality photoacoustic and ultrasound endoscopy
Year: 2019
Type: article
Abstract: 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.
Source: Photoacoustics
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,800
Awards: G1178403614, Development of high speed OCT/US/NIRF tri-modality intravascular imaging for Characterization of Atherosclerosis, High-resolution Elastographic Assessment of the Optic Nerve Head, High Resolution Elastograpy of Retina Under Prosthetic Electrical Stimulation, G7519571385, Combined OCT/US/PAT system for intravascular Imaging, Graduate Research Fellowship (GRFP), G8843225178, Phase resolved ARF optical coherence elastography for intravascular imaging
OpenAlex ID: W2953190212