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. Author manuscript; available in PMC: 2011 Jan 10.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Nov;57(11):2437–2449. doi: 10.1109/TUFFC.2010.1710

Fig. 13.

Fig. 13

Average contrast to noise ratio (CNR) values when the background region is centered at a) 20 mm and b) 40 mm. Error bars illustrate the mean CNR plus or minus one standard deviation over 3 trials.