Dr. Richard J. Colchester Profile

Dr. Richard J. Colchester

Research Fellow at University College London

SPIE Involvement:

Author

Publications (15)

Proceedings Article | 13 March 2024 Poster + Paper

Optimisation of all-optical rotational ultrasound imaging using acoustic simulations

Richard Colchester

Proceedings Volume 12819, 128190V (2024) https://doi.org/10.1117/12.2691327

KEYWORDS: Ultrasonography, Transmitters, Simulations, Receivers, Signal to noise ratio, Reflection, Optical fibers, Image resolution, Acoustics, Sensors

Read Abstract +

Proceedings Article | 20 September 2023 Paper

Single optical fibre ultrasound transducer for rotational imaging

Richard Colchester, Edward Zhang, Paul Beard, Adrien Desjardins

Proceedings Volume 12608, 1260802 (2023) https://doi.org/10.1117/12.3005582

KEYWORDS: Ultrasonography, Optical fibers, Copper, Imaging devices, Ultrasound transducers, Signal to noise ratio, Pulsed laser operation, Image processing, Visualization, Stereoscopy

Read Abstract +

Proceedings Article | 11 August 2023 Paper

Miniaturised all-optical ultrasound probe for thrombus imaging

Shaoyan Zhang, Chung Lim, Edward Zhang, Paul Beard, Adrien Desjardins, Richard Colchester

Proceedings Volume 12631, 1263110 (2023) https://doi.org/10.1117/12.2669613

KEYWORDS: Ultrasonography, Miniaturization, Optical fibers, Microresonators, Fiber coatings, Polydimethylsiloxane, Imaging systems, Imaging devices

Read Abstract +

Proceedings Article | 6 March 2023 Presentation

Real-time 3D-photoacoustic tracking system for localisation of an intraoperative needle tip

Christian Baker, Weidong Liang, Mengjie Shi, Tianrui Zhao, Francois Joubert, Sebastien Ourselin, Tom Vercauteren, Richard Colchester, Simeon West, Adrien Desjardins, Wenfeng Xia

Proceedings Volume PC12368, PC1236805 (2023) https://doi.org/10.1117/12.2650170

KEYWORDS: Photoacoustic spectroscopy, 3D acquisition, Ultrasonography, Transmitters, Receivers, Imaging systems, Visualization, Visibility, Semiconductor lasers, Oxides

Read Abstract +

Proceedings Article | 6 October 2021 Presentation + Paper

Real-time all-optical ultrasound imaging of a dynamic heart valve phantom

Richard Colchester, John Moore, Terry Peters, Malcolm Finlay, Adrien Desjardins

Proceedings Volume 11879, 1187908 (2021) https://doi.org/10.1117/12.2598781

KEYWORDS: Ultrasonography, Heart, Transmitters, Optical fibers, Fiber optics, Visualization, Surgery, Receivers

Read Abstract +

Proceedings Article | 19 July 2019 Paper

Large area all-optical ultrasound imaging using robotic control

Richard Colchester, Erwin Alles, George Dwyer, Efthymios Maneas, Danail Stoyanov, Adrien Desjardins

Proceedings Volume 11077, 110771G (2019) https://doi.org/10.1117/12.2525379

KEYWORDS: Ultrasonography, Robotics, Endoscopes, Optical fibers, Fiber optics, Integrated optics, Polymers, Multimode fibers

Read Abstract +

Proceedings Article | 7 March 2019 Presentation

A hybrid approach of two-photon polymerization scaffold printing and microinjection of optically heterogenous material for the fabrication of vascular imaging phantoms (Conference Presentation)

Callum Little, Radhika Poduval, Richard Caulfield, Sacha Noimark, Richard Colchester, Chris Loder, Manish Tiwari, Roby Rakhit, Ioannis Papakonstantinou, Adrien Desjardins

Proceedings Volume 10855, 1085507 (2019) https://doi.org/10.1117/12.2508642

KEYWORDS: Tissue optics, Two photon polymerization, 3D modeling, Printing, Vascular imaging, Tissues, Optical coherence tomography, 3D printing, Imaging systems, Device simulation

Read Abstract +

Proceedings Article | 4 March 2019 Presentation

Radio-frequency ablation monitoring through real-time, video-rate all-optical ultrasound imaging (Conference Presentation)

Erwin Alles, Richard Colchester, Sacha Noimark, Edward Zhang, Paul Beard, Malcolm Finlay, Adrien Desjardins

Proceedings Volume 10855, 108550M (2019) https://doi.org/10.1117/12.2507795

KEYWORDS: Ultrasonography, Imaging systems, Radiofrequency ablation, Image resolution, Cardiology, Atrial fibrillation, Tissues, Magnetic resonance imaging, Electronic imaging, Transducers

Read Abstract +

SPIE Journal Paper | 15 February 2019 Open Access

Micron resolution, high-fidelity three-dimensional vascular optical imaging phantoms

Callum D. Little, Radhika K. Poduval, Richard Caulfield, Sacha Noimark, Richard J. Colchester, Chris D. Loder, Manish K. Tiwari, Roby D. Rakhit, Ioannis Papakonstantinou, Adrien E. Desjardins

JBO, Vol. 24, Issue 02, 020502, (February 2019) https://doi.org/10.1117/12.10.1117/1.JBO.24.2.020502

KEYWORDS: Tissue optics, Two photon polymerization, 3D modeling, Printing, 3D image processing, Silicon, Tissues, Scattering, Image resolution, Optical imaging

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 14 March 2018 Presentation

All-optical side-viewing intravascular ultrasound imaging probe (Conference Presentation)

Richard Colchester, Sacha Noimark, Edward Zhang, Malcolm Finlay, Callum Little, Chris Loder, Roby Rahkit, Ivan Parkin, Paul Beard, Ioannis Papakonstantinou, Adrien Desjardins

Proceedings Volume 10471, 104710V (2018) https://doi.org/10.1117/12.2289848

KEYWORDS: Ultrasonography, Intravascular ultrasound, Transducers, Photoacoustic spectroscopy, Optical fibers, Carbon nanotubes, Laser beam diagnostics, Image resolution, Transmitters, Composites

Read Abstract +

Proceedings Article | 1 August 2017 Paper

Optical fiber laser ultrasound transmitter with electrospun composite for minimally invasive medical imaging

Radhika Poduval, Sacha Noimark, Richard Colchester, Tom Macdonald, Ivan Parkin, Adrien Desjardins, Ioannis Papakonstantinou

Proceedings Volume 10415, 104150B (2017) https://doi.org/10.1117/12.2286162

KEYWORDS: Fiber optics sensors, Ultrasonography, Medical imaging, Optical fibers, Laser optics, Transmitters, Composites, Carbon nanotubes, Polymers

Read Abstract +

Proceedings Article | 27 April 2016 Presentation

All-optical pulse-echo ultrasound probe for intravascular imaging (Conference Presentation)

Richard Colchester, Sacha Noimark, Charles Mosse, Edward Zhang, Paul Beard, Ivan Parkin, Ioannis Papakonstantinou, Adrien Desjardins

Proceedings Volume 9689, 96893I (2016) https://doi.org/10.1117/12.2213757

KEYWORDS: Ultrasonography, Tissues, Intravascular ultrasound, Image resolution, Photoacoustic spectroscopy, Echocardiography, Cardiology, Carbon, Composites, Fabry–Perot interferometers

Read Abstract +

Proceedings Article | 16 July 2015 Paper

Fiber optic photoacoustic probe with ultrasonic tracking for guiding minimally invasive procedures

Wenfeng Xia, Charles Mosse, Richard Colchester, Jean Martial Mari, Daniil Nikitichev, Simeon West, Sebastien Ourselin, Paul Beard, Adrien Desjardins

Proceedings Volume 9539, 95390K (2015) https://doi.org/10.1117/12.2182647

KEYWORDS: Ultrasonography, Photoacoustic spectroscopy, Tissues, Tissue optics, Ultrasonics, Receivers, Medical devices, Visualization, Coating, Natural surfaces

Read Abstract +

Proceedings Article | 11 March 2015 Paper

Real-time needle guidance with photoacoustic and laser-generated ultrasound probes

Richard Colchester, Charles Mosse, Daniil Nikitichev, Edward Zhang, Simeon West, Paul Beard, Ioannis Papakonstantinou, Adrien Desjardins

Proceedings Volume 9323, 932321 (2015) https://doi.org/10.1117/12.2080772

KEYWORDS: Ultrasonography, Optical fibers, Photoacoustic spectroscopy, Coating, Tissue optics, Tissues, Sensors, Laser beam diagnostics, Blood vessels, Imaging systems

Read Abstract +

Proceedings Article | 3 March 2014 Paper

Fiber optic ultrasound transducers with carbon/PDMS composite coatings

Charles Mosse, Richard Colchester, Davinder Bhachu, Edward Zhang, Ioannis Papakonstantinou, Adrien Desjardins

Proceedings Volume 8943, 89430P (2014) https://doi.org/10.1117/12.2037283

KEYWORDS: Optical fibers, Ultrasonography, Optical coatings, Composites, Transducers, Tissue optics, Reflectivity, Natural surfaces, Heart, Carbon nanotubes

Read Abstract +

Showing 5 of 15 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years