3 March 2017 Three-dimensional photoacoustic tomography through coherent-weighted focal-line-based image reconstruction
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Abstract
Here, we introduce a new image reconstruction algorithm that combines coherent weighting with focal-line-based three-dimensional image reconstruction. The new algorithm addresses the major limitation of a linear ultrasound transducer array, i.e., the poor elevation resolution, and does not require any modification to the imaging system or the scanning geometry. We first numerically validated our approach through simulation and then experimentally tested it in phantom and in vivo. Both simulation and experimental results proved that the method can significantly improve the elevation resolution (up to 3.4 times in our experiment) and enhance object contrast.
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Depeng Wang, Yuehang Wang, Yang Zhou, Jonathan F. Lovell, Jun Xia, "Three-dimensional photoacoustic tomography through coherent-weighted focal-line-based image reconstruction", Proc. SPIE 10064, Photons Plus Ultrasound: Imaging and Sensing 2017, 100643G (3 March 2017); doi: 10.1117/12.2253276; https://doi.org/10.1117/12.2253276
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