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. 2018 Oct 16;18(10):3475. doi: 10.3390/s18103475

Figure 1.

Figure 1

(a) Schematic representation of the needle imaging setup. In this setup, a piezoelectric buzzer is mounted near the needle base to generate acoustic waves that vibrate the needle. (b,c) An ultrasound imaging system equipped with a curvilinear transducer is employed to acquire (b) a power Doppler image and (c) a B-mode image of the excited needle.