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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2019 Sep 11;67(1):70–80. doi: 10.1109/TUFFC.2019.2940375

Fig. 4.

Fig. 4.

In vitro temperature measurements in canine liver at 3.1 MHz and 3-s pulse duration using 3 different thermocouples: needle T-type with 0.64 mm (N64), needle T-type with 0.25 mm diameter (N25), and wire T-type with 0.30 mm diameter (W30). (a)(b)(c) Temperature variation measured at different peak-negative-pressures. (d)(e)(f) Temperature variation measured with different pulse repetition frequencies. (g)(h)(i) Temperature variation measured at different locations following the beam lateral profile (0.00 mm, 0.19 mm, 0.30 mm, 0.50 mm, 0.75 mm, 1.00 mm, 1.25 mm, and 1.50 mm).