Image reconstruction for remote photoacoustic tomography using speckle-analysis

Benjamin Lengenfelder; Martin Hohmann; Margarete Röhm; Michael Schmidt; Azhar Zam; Zeev Zalevsky; Florian Klämpfl

doi:10.1117/12.2553080

2 April 2020 Image reconstruction for remote photoacoustic tomography using speckle-analysis

Benjamin Lengenfelder, Martin Hohmann, Margarete Röhm, Michael Schmidt, Azhar Zam, Zeev Zalevsky, Florian Klämpfl

Proceedings Volume 11363, Tissue Optics and Photonics; 113631F (2020) https://doi.org/10.1117/12.2553080
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

Photoacoustic tomography is a new, rising imaging technique since it combines high penetration depth with good image contrast. Speckle-analysis represents an attractive, non-contact alternative to contact-based ultrasound transducers which are state of the art for photoacoustic tomography. In this work, it is demonstrated for the first time that the speckle-sensing technique is in theory capable of photoacoustic image reconstruction by measuring on several surface locations after photoacoustic excitation. Therefore, a simulative model is used to test a back-reconstruction algorithm and a first feasibility experiment is shown.

Conference Presentation

Citation Download Citation

Benjamin Lengenfelder, Martin Hohmann, Margarete Röhm, Michael Schmidt, Azhar Zam, Zeev Zalevsky, and Florian Klämpfl "Image reconstruction for remote photoacoustic tomography using speckle-analysis", Proc. SPIE 11363, Tissue Optics and Photonics, 113631F (2 April 2020); https://doi.org/10.1117/12.2553080

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