Abstract
The paper is devoted to implementing in a specific tomographic device a two-step algorithm designed to reconstruct the spatial distributions of the sound velocity and absorption coefficient, primarily in soft biological tissues. To generate the input data of the first and second steps, a correlation algorithm is used based on determination of the time shift in the signal propagation time in the presence of an object. The results of reconstruction are presented, which are based on data measured for objects-phantoms using a developed experimental ultrasound tomograph model. We discuss problems that arise during reconstruction with a low resolution at the first step of the algorithm, and we demonstrate the high spatial resolving power achieved at the second step.
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Original Russian Text © V.A. Burov, D.I. Zotov, O.D. Rumyantseva, 2015, published in Akusticheskii Zhurnal, 2015, Vol. 61, No. 2, pp. 254–273.
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Burov, V.A., Zotov, D.I. & Rumyantseva, O.D. Reconstruction of the sound velocity and absorption spatial distributions in soft biological tissue phantoms from experimental ultrasound tomography data. Acoust. Phys. 61, 231–248 (2015). https://doi.org/10.1134/S1063771015020013
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DOI: https://doi.org/10.1134/S1063771015020013