Dr. Gavrielle R. Untracht Profile

Dr. Gavrielle R. Untracht

at Technical Univ of Denmark

SPIE Involvement:

Scholarship Committee | Editorial Board Member: Biophotonics Discovery | Author | Career Lab Leader

Publications (12)

Proceedings Article | 7 April 2024 Poster

Multicore fibres for spatial offset optical coherence tomography

Stefan Mark Jensen, Gavrielle Untracht, Madhu Veettikazhy, Esben Ravn Andresen, Peter Eskil Andersen

Proceedings Volume 12998, 129981M (2024) https://doi.org/10.1117/12.3022475

KEYWORDS: Optical coherence tomography, Multicore fiber, Light sources and illumination, Endoscopy, Signal attenuation, Scattered light, Multiple scattering, In vivo imaging, Image guided intervention, Diseases and disorders

Proceedings Article | 13 March 2024 Presentation

Spatially offset OCT: leveraging multiple scattering for enhanced contrast deep in biological tissues

Gavrielle Untracht, Freja Høier, Philip Wijesinghe, Harold Yura, Kishan Dholakia, Peter Andersen

Proceedings Volume PC12830, PC128300G (2024) https://doi.org/10.1117/12.3005420

KEYWORDS: Optical coherence tomography, Tissues, Multiple scattering, Biomedical optics, Microscopy, Image segmentation, Image contrast enhancement, Speckle, Signal attenuation, Scattered light

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Proceedings Article | 13 March 2024 Presentation

Experimental comparison of parametric attenuation models in optical coherence tomography

Gavrielle Untracht, Morgane Zimmer, Lars Lindvold, Dominik Marti, Peter Andersen

Proceedings Volume PC12830, PC128302R (2024) https://doi.org/10.1117/12.3005423

KEYWORDS: Optical coherence tomography, Tissues, Scattering, Attenuation, Optical properties, Standards development, Extremely high frequency, Absorption, Radiomics, Multiple scattering

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Proceedings Article | 13 March 2024 Presentation

Towards harmonization of retinal OCTA-derived microvascular metrics with open-source software OCTAVA

Gavrielle Untracht, Madeleine Durkee, Mei Zhao, Andrew Kwok-Cheung Lam, Bartosz Sikorski, Marinko Sarunic, Peter Andersen, David Sampson, Fred Chen, Danuta Sampson

Proceedings Volume PC12824, PC128240A (2024) https://doi.org/10.1117/12.3000195

KEYWORDS: Open source software, Equipment, Retinal diseases, Reproducibility, Image analysis, Vascular diseases, Retinal scanning, Quantitative analysis, Optical sensing, Optical coherence tomography

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Proceedings Article | 13 March 2024 Presentation

OCTAVA: an open-source toolbox for quantitative analysis of OCTA images and applications in cutaneous microvascular assessment

Gavrielle Untracht, Nikolaos Dikaios, Vinzent Ortner, Merete Haedersdal, David Sampson, Christian Heiss, Danuta Sampson

Proceedings Volume PC12816, PC1281602 (2024) https://doi.org/10.1117/12.3000192

KEYWORDS: Quantitative analysis, Vascular diseases, Software development, Optical coherence tomography, Open source software, Image processing, Equipment, Diseases and disorders, Dermatology, Data analysis

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SPIE Press Book | 27 January 2024

Light: A Spectrum of Opportunity

Danuta Sampson, Andrea Curatolo, Philip Wijesinghe, Agata Azzolin, Isinsu Toker, Gavrielle Untracht

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SPIE Press Book | 15 August 2023

Jesse Explores: Vision and Vision Impairment

Danuta Sampson, Gavrielle Untracht

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Jesse Explores: Vision and Vision Impairment

Proceedings Article | 11 August 2023 Paper

OCT-derived attenuation coefficient can differentiate between healthy and diabetic bone in a mouse model

Gavrielle Untracht, Lasse Bo Mortensen, Lejla Emini, Niklas Rye Jørgensen, Peter Andersen

Proceedings Volume 12632, 126320H (2023) https://doi.org/10.1117/12.2670587

KEYWORDS: Bone, Attenuation, Mouse models, Optical coherence tomography, Dual energy x-ray absorptiometry, Animal model studies, X-rays, Osteoporosis, Minerals, Diagnostics

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Proceedings Article | 11 August 2023 Paper

Enhanced contrast in optical coherence tomography using multiple scattering

Gavrielle Untracht, Mingzhou Chen, Philip Wijesinghe, Joesp Mas, Harold Yura, Dominik Marti, Peter Andersen, Kishan Dholakia

Proceedings Volume 12632, 126321G (2023) https://doi.org/10.1117/12.2670209

KEYWORDS: Optical coherence tomography, Multiple scattering, Signal attenuation, Microscopy, Image contrast enhancement, Biomedical optics, Scattered light, Optical microscopy, Interference (communication), Image enhancement

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Proceedings Article | 4 March 2019 Presentation

Advantages and limitations of all-fiber quasi-Bessel beam probes: theory and practice (Conference Presentation)

Michael Hackmann, Karol Karnowski, Onur Cetinkaya, Gavrielle Untracht, David Sampson

Proceedings Volume 10854, 1085419 (2019) https://doi.org/10.1117/12.2509774

KEYWORDS: Imaging systems, Laser beam diagnostics, Gaussian beams, Optical imaging, Signal to noise ratio, Image resolution, Tissues, Endoscopy, Statistical modeling, Systems modeling

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Proceedings Article | 7 March 2016 Presentation + Paper

GPU-based computational adaptive optics for volumetric optical coherence microscopy

Han Tang, Jeffrey Mulligan, Gavrielle Untracht, Xihao Zhang, Steven Adie

Proceedings Volume 9720, 97200O (2016) https://doi.org/10.1117/12.2213949

KEYWORDS: Optical coherence tomography, Reconstruction algorithms, Adaptive optics, Aberration correction, Optical coherence microscopy, Tissues, Graphics processing units, Holography, Interferometry, Deconvolution, Visualization, Parallel computing, 3D image processing, Imaging systems

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Proceedings Article | 15 October 2012 Paper

3D x-ray fluorescence microscopy with 1.7 micron resolution using lithographically fabricated micro-channel arrays

Arthur Woll, David Agyeman-Budu, Donald Bilderback, Darren Dale, Alexander Kazimirov, Mark Pfeifer, Tia Plautz, Thomas Szebenyi, Gavrielle Untracht

Proceedings Volume 8502, 85020K (2012) https://doi.org/10.1117/12.944365

KEYWORDS: Channel projecting optics, X-rays, Silicon, Sensors, X-ray optics, Photons, X-ray microscopy, Confocal microscopy, Deep reactive ion etching, Collimation

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Showing 5 of 12 publications

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