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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: Ultrasound Med Biol. 2017 Jul 26;43(10):2416–2425. doi: 10.1016/j.ultrasmedbio.2017.06.024

Fig. 2.

Fig. 2

Top: Matched tissue harmonic images using mechanical index (MI) values of 1.6 (left) and 2.6 (right) in an easy-to-image (category 1) volunteer with a body mass index of 20.9 kg/m2. The arrows indicate structures in which the contrast-to-noise ratio (CNR) was computed. Both images are shown with a dynamic range of 60 dB. Bottom: CNR versus MI for each structure. The error bars reflect the variability of CNR among the three pairs of measurements at each MI.