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. Author manuscript; available in PMC: 2010 Jun 29.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2009 Jan;56(1):204–212. doi: 10.1109/TUFFC.2009.1020

Figure 1.

Figure 1

3-D scanning process of the dual-layer transducer array in (a) transmit and (b) in receive. Shaded elements indicate the active subaperture.