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. Author manuscript; available in PMC: 2013 Sep 11.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Oct;57(10):2284–2292. doi: 10.1109/TUFFC.2010.1689

Fig. 15.

Fig. 15

These bar graphs correspond to those in Figure 11 where phantom 2 has been used instead of phantom 1. Results are similar to those obtained using phantom 1. Phantom 2, however, contains a block with 137-μm spheres instead of 115-μm spheres. The 137-μm spheres were detected using the 770 single-element 55 MHz transducer, whereas no such detection occurred for the 115-μm spheres in phantom 1.