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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: IEEE Trans Med Imaging. 2017 Jun 13;36(9):1979–1991. doi: 10.1109/TMI.2017.2714901

Fig. 7.

Fig. 7

(a) Median relative power with respect to the last in vivo muscle contraction time point (for each filtering method) is plotted for every 50ms for each filtering case: proposed filter (teal), proposed filter with no amplitude demodulation (orange), 20Hz high pass (purple), and 50Hz high pass (pink). The time points at which the muscle contracted and released are marked with arrows (at about 8s and 13s, respectively). (b) Power Doppler and corresponding B-mode images (bottom row) are shown for 5, 17, 26, and 30 second time points of the in vivo muscle contraction scan for each filtering case: proposed filter (first row), proposed filter with no amplitude demodulation (second row), 20Hz high pass (third row), and 50Hz high pass (fourth row).