Alles, EJ;
Colchester, RJ;
Desjardins, AE;
(2018)
Adaptive All-Optical Ultrasound Imaging Through Temporal Modulation of Excitation Light.
In:
2018 IEEE International Ultrasonics Symposium (IUS).
IEEE
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Abstract
In this work, we demonstrate how the wide acoustic bandwidths generated by all-optical ultrasound imaging probes can be leveraged to dynamically trade-off image resolution with penetration depth. This dynamic trade-off was achieved through temporal modulation of the excitation light using bandwidth-limited linear chirps. The penetration depth of the all-optical ultrasound imaging probe used here could be arbitrarily set between 2 and 15 mm, to achieve inversely proportional spatial resolutions ranging from 128 - 500 μm (lateral)and 189 - 295 μn (axial). This added versatility in image parameters will enable seamless multi-scale ultrasound imaging that can strongly benefit interventional imaging.
| Type: | Proceedings paper |
|---|---|
| Title: | Adaptive All-Optical Ultrasound Imaging Through Temporal Modulation of Excitation Light |
| Event: | IEEE International Ultrasonics Symposium (IUS), 22-25 October 2018, Kobe, Japan |
| ISBN-13: | 9781538634257 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ULTSYM.2018.8580194 |
| Publisher version: | https://doi.org/10.1109/ULTSYM.2018.8580194 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Ultrasonic imaging , Optical imaging , Optical pulses , Optical sensors , Optical attenuators , Bandwidth, All-optical ultrasound , chirp modulation , resolution , penetration depth , multi-scale imaging |
| 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/10068074 |
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