期刊
BIOMEDICAL OPTICS EXPRESS
卷 7, 期 9, 页码 3696-3704出版社
OPTICAL SOC AMER
DOI: 10.1364/BOE.7.003696
关键词
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资金
- European Research Council (ERC) [310970 MOPHIM]
- Innovative Engineering for Health award by the Wellcome Trust [WT101957]
- Engineering and Physical Sciences Research Council (EPSRC) [NS/A000027/1]
- European Union project FAMOS (FP7 ICT) [317744]
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.
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