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Published May 15, 2009 | Published
Journal Article Open

Photoacoustic endoscopy


We have developed photoacoustic endoscopy with a miniaturized imaging probe. A light-guiding optical fiber, an ultrasonic sensor, and a mechanical scanning unit are integrated to enable circumferential sector scanning, which produces B-scan images. Biological tissues, including the gastrointestinal tract of a rat, have been imaged ex vivo or in situ.

Additional Information

© 2009 Optical Society of America. Received March 11, 2009; accepted April 3, 2009; posted April 22, 2009 (Doc. ID 108687); published May 14, 2009. This research was supported by the U.S National Institutes of Health (NIH) grants R01 NS46214 (BRP), R01 EB000712, R01 EB008085, and U54 CA136398 (Network for Translational Research). L. W. has a financial interest in Endra, Inc., which, however, did not support this work. J. M. Y. was supported in part by a Korea Research Foundation (KRF) grant funded by the Korean Government (KRF-2007-357-C00039).

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