Translator Disclaimer
23 February 2012 In vivo imaging with GRIN-lens optical resolution photoacoustic micro-endoscopy
Author Affiliations +
In this paper we introduce a novel optical resolution photoacoustic micro-endoscopy system using GRIN-lens focusing. This real-time imaging system takes advantage of an image guide fiber consisting of 100,000 individual single-mode fibers in a 1.4-mm-diameter bundle, and a 532-nm fiber laser with repetition-rates as high as 600 kHz. Fast scanning mirrors were used to scan the entire image guide fiber allowing for the maximum field-of-view. The ability of the proposed system is demonstrated using both phantom and in vivo studies. The system offers <7 μm lateral spatial resolution and several volumetric/C-scans per second frame-rate. The proposed setup can be inserted into the body due to the flexible nature of the image guide and micron-scale footprint of the apparatus.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Parsin Hajireza, Wei Shi, Alexander Forbrich, Peng Shao, and Roger J. Zemp "In vivo imaging with GRIN-lens optical resolution photoacoustic micro-endoscopy", Proc. SPIE 8223, Photons Plus Ultrasound: Imaging and Sensing 2012, 82230I (23 February 2012);

Back to Top