3 March 2014 Influence of illumination position on image contrast in epi-optoacoustic imaging of human volunteers
Author Affiliations +
Abstract
In a multi-modal combination of optoacoustic (OA) and pulse-echo ultrasound (US) imaging, epi-mode irradiation with the irradiation optics integrated with the acoustic probe has the advantage of flexible clinical application on any part of the body that is already accessible to US. In epi-mode strong clutter limits the OA imaging depth to often around one centimetre. We investigated clutter in automated scanning of volunteer forearms using a real-time combined OA and US system. The results agree well with our theory that clutter arises from strong optical absorption at the location of tissue illumination. As a consequence, we show that an intermediate separation distance between imaging plane and irradiation region leads to superior OA image contrast compared to an irradiation close to the imaging plane.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Stefan Preisser, Stefan Preisser, Gerrit Held, Gerrit Held, Sara Peeters, Sara Peeters, Michael Jaeger, Michael Jaeger, Martin Frenz, Martin Frenz, } "Influence of illumination position on image contrast in epi-optoacoustic imaging of human volunteers", Proc. SPIE 8943, Photons Plus Ultrasound: Imaging and Sensing 2014, 894346 (3 March 2014); doi: 10.1117/12.2058126; https://doi.org/10.1117/12.2058126
PROCEEDINGS
4 PAGES


SHARE
Back to Top