Table 1 Routine acquisition parameters in MATLAB SWEI structure

Impulse frequency

5 MHz

Beam frequency

5 MHz

Impulse duration

1000 cycles of 192 µs

Impulse focus configuration

14.8 mm

Beam focus configuration

Plane wave, fully open

Data channel sampling frequency

20.0 MHz

IQ data beam forming sampling frequency

0.25 λ

Pulse repetition interval

100 µs

Excitation voltage

50 V

Sampling frequency

5000 Hz

Number of transmission channels

128

Number of reception channels

128