Depolarization imaging for caries detection validated by co-registered PS-OCT and µCT volumes (Conference Presentation)

Jonas Golde; Florian Tetschke; Robin Vosahlo; Julia Walther; Christian Hannig; Edmund Koch; Lars Kirsten

doi:10.1117/12.2546764

9 March 2020 Depolarization imaging for caries detection validated by co-registered PS-OCT and µCT volumes (Conference Presentation)

Jonas Golde, Florian Tetschke, Robin Vosahlo, Julia Walther, Christian Hannig, Edmund Koch, Lars Kirsten

Author Affiliations +

Proceedings Volume 11217, Lasers in Dentistry XXVI; 1121707 (2020) https://doi.org/10.1117/12.2546764
Event: SPIE BiOS, 2020, San Francisco, California, United States

Abstract

The prerequisite for a successful caries management is the early and precise detection of lesions. We have recently shown that depolarization imaging based on polarization-sensitive optical coherence tomography (PS-OCT) is a promising tool to detect demineralized enamel. To validate this contrast mechanism, we acquired data sets of tooth samples with occlusal caries lesions using PS-OCT and x-ray micro-computed tomography (µCT). Spatial alignment of the PS-OCT and µCT volumes was achieved by creating point clouds from surface segmentations, and subsequent registration. PS-OCT depolarization signals are in good agreement with the µCT results, showing the potential of this approach for caries diagnostics.

Conference Presentation

Citation Download Citation

Jonas Golde, Florian Tetschke, Robin Vosahlo, Julia Walther, Christian Hannig, Edmund Koch, and Lars Kirsten "Depolarization imaging for caries detection validated by co-registered PS-OCT and µCT volumes (Conference Presentation)", Proc. SPIE 11217, Lasers in Dentistry XXVI, 1121707 (9 March 2020); https://doi.org/10.1117/12.2546764

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