Colchester, RJ;
Moore, JT;
Peters, TM;
Finlay, MC;
Desjardins, AE;
(2021)
Real-time all-optical ultrasound imaging of a dynamic heart valve phantom.
In:
Proceedings of Frontiers in Biophotonics and Imaging.
SPIE
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Abstract
All-optical ultrasound imaging, in which ultrasound is generated and received using light, is well-suited to minimally invasive surgical procedures. Here we present a device that can provide real-time M-mode ultrasound images, and demonstrate its use imaging a dynamic heart valve phantom. This device, comprising two optical fibres, one with a graphene-polydimethylsiloxane composite coating for ultrasound generation, and a second with a concave Fabry-Perot cavity for ultrasound reception, had a diameter of < 1 mm. This provided a wide ultrasound transmission bandwidth (> 30 MHz) that enabled imaging with high axial resolution (< 50 μm) and large imaging depths (> 2 cm). M-mode imaging with an A-line rate of 100 Hz was demonstrated on a heart valve phantom with realistic mitral valve motion. This work demonstrates the potential for all-optical ultrasound imaging to be used for guidance of intracardiac interventions.
| Type: | Proceedings paper |
|---|---|
| Title: | Real-time all-optical ultrasound imaging of a dynamic heart valve phantom |
| Event: | Frontiers in Biophotonics and Imaging |
| Dates: | 28 September 2021 - 01 October 2021 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.2598781 |
| Publisher version: | https://doi.org/10.1117/12.2598781 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10136377 |
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