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. Author manuscript; available in PMC: 2017 Jul 12.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2015 Sep;62(9):1623–1633. doi: 10.1109/TUFFC.2014.006883

Fig. 6.

Fig. 6

Contrast-to-tissue ratio (CTR) for B-mode and energy projection (EP) images as a function of contrast agent formulation and applied pressure. The effects of time-domain averaging (TDA) are shown by the dotted lines. The contrast agent concentration is 0.3%. The error bars indicate one standard deviation. The asterisks denote a significant effect of TDA within droplet or microbubble groups (p < 0.05).