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The effects of acoustic attenuation in optoacoustic signals.

Phys. Med. Biol. 56, 6129-6148 (2011)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
In this paper, it is demonstrated that the effects of acoustic attenuation may play a significant role in establishing the quality of tomographic optoacoustic reconstructions. Accordingly, spatially dependent reduction of signal amplitude leads to quantification errors in the reconstructed distribution of the optical absorption coefficient while signal broadening causes loss of image resolution. Here we propose a correction algorithm for accounting for attenuation effects, which is applicable in both the time and frequency domains. It is further investigated which part of the optoacoustic signal spectrum is practically affected by those effects in realistic imaging scenarios. The validity and benefits of the suggested modelling and correction approaches are experimentally validated in phantom measurements.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter no keywords
ISSN (print) / ISBN 0031-9155
e-ISSN 1361-6560
Quellenangaben Band: 56, Heft: 18, Seiten: 6129-6148 Artikelnummer: , Supplement: ,
Verlag Institute of Physics Publishing (IOP)
Verlagsort Bristol
Begutachtungsstatus Peer reviewed