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Acceleration of optoacoustic model-based reconstruction using angular image discretization.

IEEE Trans. Med. Imaging 31, 1154-1162 (2012)
Open Access Green as soon as Postprint is submitted to ZB.
Optoacoustic tomography has recently demonstrated powerful performance in small animal imaging and initial clinical trials in terms of the high spatial resolution, versatile contrast, and dynamic imaging capabilities it can provide. Yet, the current optoacoustic image reconstruction methods are usually based on inaccurate forward modelling approaches or otherwise demand a high computational cost, which imposes certain practical limitations and hinders image quantification. Herein, we introduce a new method for accelerating optoacoustic reconstructions, based on angular image discretization of the forward model solution. The method is particularly suitable for accurate image reconstruction with arbitrary meshes and space-dependent resolution, while it can also readily account for small speed of sound variations without compromising the calculation speed. It is further anticipated that the new approach will greatly facilitate development of high performance 3-D optoacoustic reconstruction methods.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Heterogeneous speed of sound; model-based reconstruction; optoacoustic tomography; photoacoustic tomography; PHOTOACOUSTIC TOMOGRAPHY; MEDIA; ALGORITHMS; TISSUE
ISSN (print) / ISBN 0278-0062
e-ISSN 1558-254X
Quellenangaben Volume: 31, Issue: 5, Pages: 1154-1162 Article Number: , Supplement: ,
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Publishing Place New York, NY [u.a.]
Reviewing status Peer reviewed