Dr. Thomas Roetzer Profile

Dr. Thomas Roetzer

at Medizinische Univ. Wien

SPIE Involvement:

Author

Publications (8)

Proceedings Article | 28 April 2022 Poster + Presentation

Characterization of ex vivo glioma samples from fluorescence-guided surgery using multimodal optical coherence microscopy-based radiomic features

Johanna Gesperger, Karl-Heinz Nenning, Conrad Merkle, Antonia Lichtenegger, Pablo Eugui, Thomas Roetzer, Barbara Kiesel, Petra Mercea, Alexandra Lang, Georg Langs, Georg Widhalm, Bernhard Baumann, Adelheid Wöhrer

Proceedings Volume PC11946, PC119460X (2022) https://doi.org/10.1117/12.2609514

KEYWORDS: Surgery, Radio optics, Coherence (optics), Tumors, Optical coherence tomography, Feature extraction, Tissues, Tissue optics, Shape analysis, Neuroscience

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Proceedings Article | 5 March 2021 Presentation

Multimodal optical coherence microscopy and texture analysis for ex vivo brain tumors from fluorescence-guided surgery

Johanna Gesperger, Antonia Lichtenegger, Thomas Roetzer, Karl-Heinz Nenning, Pablo Eugui, Barbara Kiesel, Conrad Merkle, Marco Augustin, Petra Mercea, Georg Widhalm, Adelheid Wöhrer, Bernhard Baumann

Proceedings Volume 11629, 1162925 (2021) https://doi.org/10.1117/12.2577509

KEYWORDS: Tumors, Brain, Tissues, Surgery, Optical coherence microscopy, Optical coherence tomography, Reflectivity, Data acquisition, Visualization

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Proceedings Article | 5 March 2021 Poster + Presentation

Pilot study: intra-tumor heterogeneity of lower grade glioma samples using multi-modal optical coherence microscopy

Antonia Lichtenegger, Johanna Gesperger, Barbara Kiesel, Thomas Roetzer, Pablo Eugui, Matthias Salas, Conrad Merkle, Georg Widhalm, Adelheid Wöhrer, Bernhard Baumann

Proceedings Volume 11630, 116301P (2021) https://doi.org/10.1117/12.2575071

KEYWORDS: Tumors, Optical coherence microscopy, Luminescence, Imaging systems, Neuroimaging, Brain, Signal attenuation, Visible radiation, Laser tissue interaction, Objectives

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Proceedings Article | 5 March 2021 Presentation

Fluorescence lifetime imaging and spectroscopy for enhanced protoporphyrin IX guided brain tumor surgery

David Reichert, Mikael Erkkilä, Georg Widhalm, Barbara Kiesel, Lisa Wadiura, Petra Mercea, Marco Andreana, Angelika Unterhuber, Marco Wilzbach, Christoph Hauger, Wolfgang Drexler, Rainer Leitgeb, Thomas Rötzer, Adelheid Wöhrer

Proceedings Volume 11629, 116290B (2021) https://doi.org/10.1117/12.2578660

KEYWORDS: Fluorescence lifetime imaging, Tumors, Luminescence, Brain, Surgery, Spectroscopy, Fluorescence spectroscopy, Tissues, Neuroimaging, Imaging spectroscopy

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Proceedings Article | 9 March 2020 Presentation

Discrimination of brain tumor regional samples using combined visible light optical coherence microscopy and fluorescence imaging (Conference Presentation)

Johanna Gesperger, Antonia Lichtenegger, Thomas Roetzer, Pablo Eugui Arrizabalaga, Barbara Kiesel, Danielle Jade Harper, Conrad Wiliam Merkle, Marco Augustin, Georg Widhalm, Adelheid Woehrer, Bernhard Baumann

Proceedings Volume 11226, 112261G (2020) https://doi.org/10.1117/12.2544652

KEYWORDS: Tumors, Luminescence, Brain, Neuroimaging, Visible radiation, Optical coherence microscopy, Optical coherence tomography, Surgery, Tissues, Backscatter

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Proceedings Article | 9 March 2020 Presentation

Intra-tumor heterogeneity of glioblastoma samples revealed by visible light optical coherence microscopy (Conference Presentation)

Antonia Lichtenegger, Johanna Gesperger, Barbara Kiesel, Thomas Roetzer, Pablo Eugui, Danielle Harper, Matthias Salas, Marco Augustin, Conrad Merkle, Christoph Hitzenberger, Georg Widhalm, Adelheid Wöhrer, Bernhard Baumann

Proceedings Volume 11228, 112281T (2020) https://doi.org/10.1117/12.2544612

KEYWORDS: Visible radiation, Optical coherence microscopy, Optical coherence tomography, Signal attenuation, Light scattering, Tissue optics, Scattering, Microscopy, Neuroimaging, Brain

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SPIE Journal Paper | 24 February 2020 Open Access

Surgical microscope with integrated fluorescence lifetime imaging for 5-aminolevulinic acid fluorescence-guided neurosurgery

Mikael Erkkilä, David Reichert, Nancy Hecker-Denschlag, Marco Wilzbach, Christoph Hauger, Rainer Leitgeb, Johanna Gesperger, Barbara Kiesel, Thomas Roetzer, Georg Widhalm, Wolfgang Drexler, Angelika Unterhuber, Marco Andreana

JBO, Vol. 25, Issue 07, 071202, (February 2020) https://doi.org/10.1117/12.10.1117/1.JBO.25.7.071202

KEYWORDS: Luminescence, Fluorescence lifetime imaging, Microscopes, Tumors, Tissues, Imaging systems, Cameras, Surgery, Visualization, Laser scanners

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Proceedings Article | 19 July 2019 Paper

Combined visible light optical coherence microscopy and fluorescence imaging setup to investigate 5-aminolevulinic acid postive glioma samples

Antonia Lichtenegger, Johanna Gesperger, Barbara Kiesel, Danielle Harper, Pablo Eugui, Matthias Salas, Marco Augustin, Thomas Roetzer, Christoph Hitzenberger, Georg Widhalm, Adelheid Woehrer, Bernhard Baumann

Proceedings Volume 11078, 1107819 (2019) https://doi.org/10.1117/12.2526618

KEYWORDS: Tumors, Brain, Luminescence, Visible radiation, Tissues, Neuroimaging, Optical coherence microscopy, Tissue optics, Mirrors, Optical coherence tomography

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Showing 5 of 8 publications

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