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Artefact reduction in optoacoustic tomographic imaging by estimating the distribution of acoustic scatterers.

J. Biomed. Opt. 17:110504 (2012)
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ABSTRACT. The quality of optoacoustic tomographic reconstructions can be severely affected by acoustic reflections or scattering arising at interfaces of highly mismatched organs, such as bones, lungs, or other air-containing cavities. We present a procedure to reduce the associated artefacts based on estimation of the acoustic scatterers distribution within the imaged object. Signals generated by a strong optical absorber are processed and used in a weighted back-projection algorithm. Experimental results in a tissue-mimicking phantom clearly demonstrate improved performance as compared to the case in which no information on the distribution of acoustic scatterers is available.
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Publication type Article: Journal article
Document type Scientific Article
Keywords optoacoustic tomography; heterogeneous acoustic medium; accoustic scattering and reflection; In-vivo ; Photoacoustic Tomography ; Reconstruction
ISSN (print) / ISBN 1083-3668
e-ISSN 1560-2281
Quellenangaben Volume: 17, Issue: 11, Pages: , Article Number: 110504 Supplement: ,
Publisher SPIE
Reviewing status Peer reviewed