Optical Ultrasound Generation and Detection for Intravascular Imaging: A Review

Journal of Healthcare Engineering - Tập 2018 - Trang 1-14 - 2018
Tianrui Zhao1, Lei Su1, Wenfeng Xia2,3
1School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
2Department of Medical Physics and Biomedical Engineering, University College London, Gower Street, London, WC1E 6BT, UK
3Wellcome/EPSRC Centre for Interventional and Surgical Sciences, University College London, Charles Bell House, 67-73 Riding House Street, London W1W 7EJ, UK

Tóm tắt

Combined ultrasound and photoacoustic imaging has attracted significant interests for intravascular imaging such as atheromatous plaque detection, with ultrasound imaging providing spatial location and morphology and photoacoustic imaging highlighting molecular composition of the plaque. Conventional ultrasound imaging systems utilize piezoelectric ultrasound transducers, which suffer from limited frequency bandwidths and reduced sensitivity with miniature transducer elements. Recent advances on optical methods for both ultrasound generation and detection have shown great promise, as they provide efficient and ultrabroadband ultrasound generation and sensitive and ultrabroadband ultrasound detection. As such, all-optical ultrasound imaging has a great potential to become a next generation ultrasound imaging method. In this paper, we review recent developments on optical ultrasound transmitters, detectors, and all-optical ultrasound imaging systems, with a particular focus on fiber-based probes for intravascular imaging. We further discuss our thoughts on future directions on developing combined all-optical photoacoustic and ultrasound imaging systems for intravascular imaging.

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Journal of Healthcare Engineering

Tập 2018

1-14

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