Alles, EJ;
Noimark, S;
Zhang, E;
Beard, PC;
Desjardins, AE;
(2016)
Pencil beam all-optical ultrasound imaging.
Biomedical Optics Express
, 7
(9)
pp. 3696-3704.
10.1364/BOE.7.003696.
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Abstract
A miniature, directional fibre-optic acoustic source is presented that employs geometrical focussing to generate a nearly-collimated acoustic pencil beam. When paired with a fibre-optic acoustic detector, an all-optical ultrasound probe with an outer diameter of 2.5 mm is obtained that acquires a pulse-echo image line at each probe position without the need for image reconstruction. B-mode images can be acquired by translating the probe and concatenating the image lines, and artefacts resulting from probe positioning uncertainty are shown to be significantly lower than those observed for conventional synthetic aperture scanning of a non-directional acoustic source. The high image quality obtained for excised vascular tissue suggests that the all-optical ultrasound probe is ideally suited for in vivo, interventional applications.
| Type: | Article |
|---|---|
| Title: | Pencil beam all-optical ultrasound imaging |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1364/BOE.7.003696 |
| Publisher version: | http://doi.org/10.1364/BOE.7.003696 |
| Language: | English |
| Additional information: | Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. |
| Keywords: | Science & Technology, Life Sciences & Biomedicine, Physical Sciences, Biochemical Research Methods, Optics, Radiology, Nuclear Medicine & Medical Imaging, Biochemistry & Molecular Biology, ELECTROMAGNETIC TRACKING, TRANSDUCER, THERAPY, ARRAYS, SENSOR |
| 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/1508221 |
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