Published February 23, 2012
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A 2.5-mm outer diameter photoacoustic endoscopic mini-probe based on a highly sensitive PMN-PT ultrasonic transducer
Abstract
We have developed a 2.5-mm outer diameter photoacoustic endoscopic mini-probe to use in the instrument channel (typically 2.8 or 3.7 mm in diameter) of standard video endoscopes. To achieve adequate signal sensitivity, we fabricated a focused ultrasonic transducer using a highly-sensitive PMN-PT piezoelectric material. We quantified the PMN-PT transducer's operating parameters and validated the mini-probe's endoscopic imaging capability through an ex vivo imaging experiment on a rat colon.
Additional Information
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). We thank Prof. James Ballard for his attentive reading of the manuscript. This work was sponsored in part by National Institutes of Health grants R01 CA157277, R01 NS46214 (BRP), R01 EB000712, R01 EB008085, and U54 CA136398 (Network for Translational Research). L.W. has a financial interest in Microphotoacoustics, Inc. and Endra, Inc., which, however, did not support this work. J.-M.Y. was supported in part by a Korea Research Foundation Grant funded by the Korean Government (KRF-2007-357-C00039).Attached Files
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Additional details
- Eprint ID
- 89726
- Resolver ID
- CaltechAUTHORS:20180918-140709702
- R01 CA157277
- NIH
- R01 NS46214
- NIH
- R01 EB000712
- NIH
- R01 EB008085
- NIH
- U54 CA136398
- NIH
- KRF-2007-357-C00039
- National Research Foundation of Korea
- Created
-
2018-09-19Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 8223