Leskinen, J;
Pulkkinen, A;
Tick, J;
Tarvainen, T;
(2019)
Photoacoustic tomography setup using LED illumination.
In: Ntziachristos, V and Zemp, R, (eds.)
Opto-Acoustic Methods and Applications in Biophotonics IV.
SPIE: Washington, USA.
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Abstract
Photoacoustic tomography (PAT) is a hybrid imaging modality that combines optical contrast with ultrasound resolution. Most of the PAT configurations are based on high-energy solid-state lasers such as Nd:YAG laser. In this work, a PAT system that uses light-emitting diode (LED) as a light source is introduced. The system is designed so that the imaged target can be stationary. The target is illuminated by a LED light source from one side and the pressure wave is measured using an acoustic transducer that is rotated around the target. Image reconstruction is based on Bayesian approach to illposed inverse problems. The system was tested with light absorbing targets also in limited-view and sparse angle measurement situations. The results show that LED-based instrumentation and advanced reconstruction methods can form a potential PAT system that can also be applied in limited-view and sparse angle photoacoustic tomography.
| Type: | Proceedings paper |
|---|---|
| Title: | Photoacoustic tomography setup using LED illumination |
| Event: | European Conferences on Biomedical Optics, 2019, Munich, Germany |
| Location: | Munich, GERMANY |
| Dates: | 24 June 2019 - 25 June 2019 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.2526723 |
| Publisher version: | https://doi.org/10.1117/12.2526723 |
| 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. |
| Keywords: | photoacoustic tomography, limited-view measurements, light-emitting diode, LED, inverse problems, Bayesian methods |
| 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 Computer Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10092765 |
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