Large-area dynamic contrast MHz optical coherence tomography for label-free imaging of porcine tissue

Sazgar Burhan, Madita Göb, Mario Pieper, Tjalfe Laedtke, Thorge Grahl, Michael Münter, Hinnerk Schulz-Hildebrandt, Gereon Hüttmann, Peter König, Robert Huber

Abstract

We demonstrate a 3.2 MHz-OCT system for inter-volumetric dynamic optical coherence tomography of ex vivo porcine kidney tissue. Employing a home-built Fourier Domain mode locking (FDML) laser with a 1310 nm wavelength, the system achieved a lateral resolution of 3.48 μm and a frame rate of 612 Hz. A motorized XYZ positioning stage enabled the precise acquisition of multiple volumes, which were seamlessly stitched together to generate a comprehensive dataset with a total area of 2.6 × 2.6 mm2. Validations against histological sections confirmed the system’s ability to visualize cellular tissue structures.
Original languageEnglish
Title of host publicationOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIX
EditorsRainer A. Leitgeb, Yoshiaki Yasuno
Number of pages1
Volume13305
PublisherSPIE
Publication date03.2025
Pages1330502
DOIs
Publication statusPublished - 03.2025

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