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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Ultrasound Med Biol. 2017 Dec 25;44(3):622–634. doi: 10.1016/j.ultrasmedbio.2017.11.005

Fig. 1.

Fig. 1

Measurement of developed ultrasonic transducer with impedance matching network (IMN). (a) Pulse-echo waveform and echo spectrum of the ultrasonic transducer with IMN. Measured center frequency was 182 MHz. (b) Measured B-mode image, axial and lateral resolutions of the ultrasonic transducer with IMN. The axial and lateral resolutions were 21 μm and 9 μm, respectively.