Spectral optoacoustic imaging using a scanning transducer

Guenther Paltauf; Kornel P. Koestli; Daniel Frauchiger; Martin Frenz

doi:10.1117/12.446661

24 October 2001 Spectral optoacoustic imaging using a scanning transducer

Guenther Paltauf, Kornel P. Koestli, Daniel Frauchiger, Martin Frenz

Proceedings Volume 4434, Hybrid and Novel Imaging and New Optical Instrumentation for Biomedical Applications; (2001) https://doi.org/10.1117/12.446661
Event: European Conferences on Biomedical Optics, 2001, Munich, Germany

Abstract

A scanning optoacoustic transducer was used to generate images of biological tissue in vivo. The transducer consisted of an optical fiber for delivery of laser pulses and an annular piezoelectric film. Optoacoustic waves were generated by irradiating the tissue with 5 ns long pulses from an optical parametric oscillator (OPO) which was tuned between 500 and 600 nm. The motorized scanner allowed to generate a 200x200 pixel image within 20 seconds. In images of human skin in vivo, certain structures such as the epidermis, blood capillaries and deeper blood vessels could be localized and identified by their spectral characteristics. From the spectral dependence of blood containing structures the oxygenation level of hemoglobin could be estimated.

Citation Download Citation

Guenther Paltauf, Kornel P. Koestli, Daniel Frauchiger, and Martin Frenz "Spectral optoacoustic imaging using a scanning transducer", Proc. SPIE 4434, Hybrid and Novel Imaging and New Optical Instrumentation for Biomedical Applications, (24 October 2001); https://doi.org/10.1117/12.446661

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available