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. 2017 Mar 16;12(3):e0173867. doi: 10.1371/journal.pone.0173867

Fig 2. HIFU positive and negative pressure waveforms displayed in 3D at 500 W (free-field), across (A & B) and along (C & D) the plane of the HIFU beam propagation.

Fig 2

At this acoustic power, the peak positive pressure was 65.97±4.42 and peak negative pressure of 10.98±0.45. Additionally, the beam width along the HIFU beam propagation is greater than the across the HIFU beam-axis.