Dr. Stefan Catheline Profile

Dr. Stefan Catheline

Professor at Lab of Therapeutic Applications of Ultrasound

SPIE Involvement:

Conference Program Committee | Author

Proceedings Article | 3 December 2021 Paper

Digital holography-based quantitative elastography using noise-correlation

Agathe Marmin, Simon Chatelin, Manuel Flury, Sybille Facca, Stefan Catheline, Amir Nahas

Proceedings Volume 11921, 1192108 (2021) https://doi.org/10.1117/12.2615455

KEYWORDS: Digital holography, Elastography, Tissues, Point spread functions, Optical coherence tomography, Holography, Polymers, Anisotropy, Actuators, Tissue optics

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SPIE Journal Paper | 19 August 2021 Open Access

Time-of-flight and noise-correlation-inspired algorithms for full-field shear-wave elastography using digital holography

Agathe Marmin, Gabrielle Laloy-Borgna, Sybille Facca, Sylvain Gioux, Stefan Catheline, Amir Nahas

JBO, Vol. 26, Issue 08, 086006, (August 2021) https://doi.org/10.1117/12.10.1117/1.JBO.26.8.086006

KEYWORDS: Elastography, Wave propagation, Tissues, Digital holography, Algorithm development, Video, Computer simulations, Speckle, Signal to noise ratio, Correlation function

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Significance: Quantitative stiffness information can be a powerful aid for tumor or fibrosis diagnosis. Currently, very promising elastography approaches developed for non-contact biomedical imaging are based on transient shear-waves imaging. Transient elastography offers quantitative stiffness information by tracking the propagation of a wave front. The most common method used to compute stiffness from the acquired propagation movie is based on shear-wave time-of-flight calculations. Aim: We introduce an approach to transient shear-wave elastography with spatially coherent sources, able to yield full-field quantitative stiffness maps with reduced artifacts compared to typical artifacts observed in time-of-flight. Approach: A noise-correlation algorithm developed for passive elastography is adapted to spatially coherent narrow or any band sources. This noise-correlation-inspired (NCi) method is employed in parallel with a classic time-of-flight approach. Testing is done on simulation images, experimental validation is conducted with a digital holography setup on controlled homogeneous samples, and full-field quantitative stiffness maps are presented for heterogeneous samples and ex-vivo biological tissues. Results: The NCi approach is first validated on simulations images. Stiffness images processed by the NCi approach on simulated inclusions display significantly less artifacts than with a time-of-flight reconstruction. The adaptability of the NCi algorithm to narrow or any band shear-wave sources was tested successfully. Experimental testing on homogeneous samples demonstrates similar values for both the time-of-flight and the NCi approach. Soft inclusions in agarose sample could be resolved using the NCi method and feasibility on ex-vivo biological tissues is presented. Conclusions: The presented NCi approach was successful in computing quantitative full-field stiffness maps with narrow and broadband source signals on simulation and experimental images from a digital holography setup. Results in heterogeneous media show that the NCi approach could provide stiffness maps with less artifacts than with time-of-flight, demonstrating that a NCi algorithm is a promising approach for shear-wave transient elastography with spatially coherent sources.

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Proceedings Article | 5 March 2021 Presentation

What resolution to expect from shear wave elastography?

Stefan Catheline, Gabrielle Laloy-Borgna, Chadi Zemzemi, Ali Zorgani

Proceedings Volume 11645, 1164512 (2021) https://doi.org/10.1117/12.2579326

KEYWORDS: Elastography, Ultrasonography, Near field optics, Wave propagation, Super resolution, Near field, Tissues, Microscopes, Medical imaging, Magnetic resonance imaging

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Proceedings Article | 5 March 2021 Presentation

Time-reversal-based passive elastography using full-field digital holography

Agathe Marmin, Stefan Catheline, Amir Nahas

Proceedings Volume 11645, 116450D (2021) https://doi.org/10.1117/12.2578560

KEYWORDS: Elastography, Digital holography, Tissues, Optical coherence tomography, Ultrasonography, Phase measurement, Magnetic resonance imaging, Tissue optics, Optical resolution, In vivo imaging

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Proceedings Article | 5 March 2021 Presentation

How good is the Voigt model for elastic wave propagation in micro-elastography?

Gabrielle Laloy-Borgna, Stefan Catheline, Ali Zorgani

Proceedings Volume 11645, 1164511 (2021) https://doi.org/10.1117/12.2579249

KEYWORDS: Wave propagation, Solids, Tissues, Velocimetry, Ultrafast imaging, Speckle, Solid modeling, Particles, Microscopes, Error analysis

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Proceedings Article | 5 March 2021 Poster + Presentation

Noise-correlation-based elastography using digital holography in anisotropic media

Agathe Marmin, Simon Chatelin, Stefan Catheline, Amir Nahas

Proceedings Volume 11645, 116451E (2021) https://doi.org/10.1117/12.2578645

KEYWORDS: Elastography, Digital holography, Tissues, Optical coherence tomography, Wave propagation, Polymers, Optical properties, Optical imaging, Mach-Zehnder interferometers, Imaging systems

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Proceedings Article | 5 March 2021 Presentation

Quantitative full-field transient elastography based on digital holography

Agathe Marmin, Gabrielle Laloy-Borgna, Sybille Facca, Sylvain Gioux, Stefan Catheline, Amir Nahas

Proceedings Volume 11645, 116450A (2021) https://doi.org/10.1117/12.2578581

KEYWORDS: Elastography, Digital holography, Wave propagation, Ultrasonography, Tissues, Optical coherence tomography, Natural surfaces, Mach-Zehnder interferometers, Cameras

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Proceedings Article | 9 March 2020 Presentation

Complex elastic wave propagation in micro-elastography (Conference Presentation)

Stefan Catheline, Gabrielle Laloy-Borgna, Ali Zorgani, Bruno Giammarinaro, Pol Grasland-Mongrain

Proceedings Volume 11242, 1124208 (2020) https://doi.org/10.1117/12.2551486

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Proceedings Article | 4 March 2019 Presentation

Passive elastography: from organ to cell (Conference Presentation)

Stefan Catheline

Proceedings Volume 10880, 108800L (2019) https://doi.org/10.1117/12.2516534

KEYWORDS: Elastography, Imaging systems, Ultrasonography, Tissues, Tomography, Cancer, Brain mapping, Magnetic resonance imaging, Soft tissue optics, Tissue optics

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Proceedings Article | 24 April 2017 Presentation

Passive optical coherence elastography using a time-reversal approach (Conference Presentation)

Thu-Mai Nguyen, Ali Zorgani, Mathias Fink, Stefan Catheline, A. Claude Boccara

Proceedings Volume 10067, 1006707 (2017) https://doi.org/10.1117/12.2251839

KEYWORDS: Elastography, Coherence (optics), Tissue optics, Tissues, In vivo imaging, Wave propagation, Ultrafast imaging, Imaging systems, Natural surfaces, Actuators

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