Volumetric photoacoustic endoscopy of internal organs: a phantom and in situ study
In this study, we further developed our photoacoustic endoscopic system to produce three-dimensional images of internal organs by performing pullback C-scans. Employing the side-scanning photoacoustic endoscopic probe discussed in the Optical Society of America's journal Optics Letters, we could acquire successive B-scan images by pulling back the probe with a motorized linear stage. We demonstrate the endoscopic system's volumetric imaging ability through imaging of a metal wire phantom and an in situ rat rectum.
Additional Information© 2010 Society of Photo-Optical Instrumentation Engineers (SPIE). This research was supported by the National Institutes of Health 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).The authors are grateful to Namiki Precision, Inc. for supporting the micromotors and Hitachi Cable Manchester for supporting the micro-coaxial cable.
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