Open AccessNoninvasive photoacoustic detecting intraocular foreign bodies with an annular transducer array
Author(s) -
Diwu Yang,
Lvming Zeng,
Chang-Ning Pan,
Xuehui Zhao,
Xuanrong Ji
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.000984
Subject(s) - photoacoustic imaging in biomedicine , transducer , optics , photoacoustic tomography , data acquisition , materials science , photoacoustic doppler effect , computer science , acoustics , physics , operating system
We present a fast photoacoustic imaging system based on an annular transducer array for detection of intraocular foreign bodies. An eight-channel data acquisition system is applied to capture the photoacoustic signals using multiplexing and the total time of data acquisition and transferring is within 3 s. A limited-view filtered back projection algorithm is used to reconstruct the photoacoustic images. Experimental models of intraocular metal and glass foreign bodies were constructed on ex vivo pig's eyes and clear photoacoustic images of intraocular foreign bodies were obtained. Experimental results demonstrate the photoacoustic imaging system holds the potential for in clinic detecting the intraocular foreign bodies.