Title :
Photoacoustic phasoscopy for tissue characterization
Author :
Fei Gao ; Yuanjin Zheng ; Xiaohua Feng ; Ohl, C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
In this paper, a novel method named photoacoustic `phasoscopy´ (PAP) is proposed to collect both scattered photons and induced photoacoustic wave to build a photo-acoustic phase spectrum, rather than conventional frequency spectrum, for biological tissue characterization,. PAP provides phase contrast with enhanced sensitivity and robustness compared with pure optical or photoacoustic sensing only. Experimental result of characterizing three different kinds of biological tissues proves the feasibility of PAP for potential biomedical sensing and imaging applications.
Keywords :
acoustic imaging; acoustic wave scattering; biological tissues; biomedical optical imaging; photoacoustic spectra; sensitivity; biological tissue characterization; biomedical imaging applications; biomedical sensing; conventional frequency spectrum; optical sensing; phase contrast; photoacoustic phase spectrum; photoacoustic phasoscopy; photoacoustic sensing; photoacoustic wave; photon scattering; sensitivity; Biomedical optical imaging; Kidney; Muscles; Optical imaging; Optical scattering; Optical sensors; Transducers; phasoscopy; photoacoustic effect; photon-tissue interaction; tissue characterization;
Conference_Titel :
Photonics Global Conference (PGC), 2012
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-2513-4
DOI :
10.1109/PGC.2012.6458064
