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. Author manuscript; available in PMC: 2010 Apr 13.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2010;57(2):340–352. doi: 10.1109/TUFFC.2010.1414

Fig. 1.

Fig. 1

Number of effective, independent A-lines calculated from echo data for (a) the VFX13-5 transducer using a center frequency setting of 10MHz and a 2cm transmit focus and (b) the VFX9-4 transducer, using a center frequency setting of 6.15MHz and a 7cm transmit focus.