Deep skin structural and microcirculation imaging with extended-focus OCT

Cedric Blatter, Branislav Grajciar, Robert Huber, Rainer Leitgeb


We present an extended focus OCT system for dermatologic applications that maintains high lateral resolution over a large depth range by using Bessel beam illumination. More, Bessel beams exhibit a self-reconstruction property that is particularly useful to avoid shadowing from surface structures such as hairs. High lateral resolution and high-speed measurement, thanks to a rapidly tuning swept source, allows not only for imaging of small skin structures in depth but also for comprehensive visualization of the small capillary network within the human skin in-vivo. We use this information for studying temporal vaso-responses to hypothermia. In contrast to other perfusion imaging methods such as laser Doppler imaging (LDI), OCT gives specific access to vascular responses in different vascular beds in depth.
Original languageEnglish
Title of host publicationPhotonic Therapeutics and Diagnostics VIII
Number of pages7
Publication date09.02.2012
ISBN (Print)978-0819488503
Publication statusPublished - 09.02.2012
EventOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVI - San Francisco, United States
Duration: 21.01.201226.01.2012


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