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  • Title: Artefact reduction in optoacoustic tomographic imaging by estimating the distribution of acoustic scatterers.
    Author: Deán-Ben XL, Ntziachristos V, Razansky D.
    Journal: J Biomed Opt; 2012 Nov; 17(11):110504. PubMed ID: 23096956.
    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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