Title :
High-resolution photoacoustic imaging
Author :
Kong, Fanting ; Chen, Y.C. ; Lloyd, Harriet O. ; Silverman, Ronald H. ; Kim, Hyung ; Cannata, Jonathan M. ; Shung, K. Kirk
Author_Institution :
Dept. of Phys. & Astron., City Univ. of New York, New York, NY, USA
Abstract :
The operation of a high-resolution photoacoustic imaging apparatus based on a ring transducer is demonstrated in this paper, which allows the focused laser and ultrasound beams to be launched from a compact monolithic device. The combination of focused laser beam and short pulse irradiation has led to significant improvement in resolution in both the lateral and axial directions over the pulse-echo imaging technique. The absorption-based imaging also reveals features in ocular tissues that can not be resolved before with pulse-echo ultrasonic imaging.
Keywords :
biological tissues; biomedical optical imaging; biomedical transducers; biomedical ultrasonics; eye; image resolution; photoacoustic effect; ultrasonic imaging; ultrasonic transducers; absorption-based imaging; compact monolithic device; diagnostic imaging technique; focused laser beams; focused ultrasonic beams; high-resolution photoacoustic imaging apparatus; ocular tissues; pulse-echo ultrasonic imaging comparison; ring transducer; ultrasound transducer; Acoustic imaging; Acoustic pulses; Acoustic transducers; Focusing; High-resolution imaging; Optical imaging; Optical pulse generation; Ring lasers; Ultrasonic imaging; Ultrasonic transducers; (110.0110) Imaging Systems; (110.5120) Photoacoustic Imaging;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
