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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: Ultrasound Med Biol. 2011 Jun 16;37(8):1230–1239. doi: 10.1016/j.ultrasmedbio.2011.05.013

Fig. 2.

Fig. 2

Localized harmonic motion (LHM) induced on a phantom (RTV6166, 20% part A, 80% part B) with a modulation frequency of 75 Hz. Five periods of the LHM were induced 20 ms after starting the acquisition and RF lines were acquired for a total of 100ms: (a) displacements calculated from the beginning of the acquisition and (b) frequency spectrum of the displacements with a peak at 75Hz (modulation frequency).