Towards ultra-large area vascular contrast skin imaging using multi-MHz-OCT

Madita Göb; Sazgar Burhan; Simon Lotz; Robert Huber

doi:10.1117/12.2612171

7 March 2022 Towards ultra-large area vascular contrast skin imaging using multi-MHz-OCT

Madita Göb, Sazgar Burhan, Simon Lotz, Robert Huber

Proceedings Volume 11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI; 1194807 (2022) https://doi.org/10.1117/12.2612171
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

We demonstrate ultra-large field of view OCT scanning using standard optics, a X-Y-galvanometer scanner and a synchronously driven motorized XYZ-positioning stage. The integration of a movable stage into our self-built 3.3 MHz- OCT system allows acquiring coherent ultra-large area images, fully leveraging the high speed potential of our system. For fast OCT-angiography, one galvanometer axis scanner is driven in a repetitive sawtooth pattern, fully synchronized to the movement of the linear stage, to obtain multiple measurements at each position. This technique requires exact synchronization, precise repositioning, and uniform movements with low tolerances to ensure a minimum revisitation error. We analyze error and performance of our setup and demonstrate angiographic imaging.

Conference Presentation

Citation Download Citation

Madita Göb, Sazgar Burhan, Simon Lotz, and Robert Huber "Towards ultra-large area vascular contrast skin imaging using multi-MHz-OCT", Proc. SPIE 11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI, 1194807 (7 March 2022); https://doi.org/10.1117/12.2612171

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