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. Author manuscript; available in PMC: 2016 Oct 31.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2015 Mar;62(3):475–493. doi: 10.1109/TUFFC.2014.006788

Fig. 1.

Fig. 1

Schematic of a USCT system with a circular transducer array whose elements are indexed from 0 to 255. It shows the first data acquisition, where element-0 (in red) is emitting an acoustic pulse, while all 256 elements are receiving signals. The region-of-interest (ROI) is shaded in gray, and the dashed square box represents the physical dimensions (128 × 128 mm2) of all reconstructed images.