Hp z820

This system (Fig. 1) is a Verasonics data acquisition system (VDAS) equipped with an extended transmit burst option (model V-1, Verasonics Inc., Redmond, WA, USA). The unit has two 12-bit data acquisition boards, permitting operation of 128 transmit channels and 64 receive channels simultaneously. The device is programmed and controlled through a host personal computer (HP Z820, Hewlett Packard, Palo Alto, CA, USA) using MATLAB 2011b (Mathworks, Waltham, MA, USA). A graphical user interface (GUI) is displayed on a touch screen monitor allowing easy control of the ultrasound system parameters. The ultrasound image is displayed on the same monitor. The system is programmed to work with an ATL HDI C5-2 abdominal probe (Philips Ultrasound, Andover, MA, USA). To simplify testing of the diagnostic system, the user can only change the output voltage of either the B-mode or the Doppler imaging. All other controls are for adjusting backend image processing or are used for data collection and measurement tools. Once the operator enables Push mode they can select 50% or 100% power output.

The UP system (Fig. 1) is essentially a diagnostic ultrasound platform with a power supply capable of emitting longer, slightly higher amplitude focused pulses for short durations (VDAS, Verasonics Inc., Redmond, WA, USA). The unit has one 12-bit data acquisition board, permitting operation of 128 transmit channels and 64 receive channels simultaneously. The device is programmed and controlled through a host personal computer (HP Z820, Hewlett Packard, Palo Alto, CA, USA) using MATLAB (Mathworks, Waltham, MA, USA). A graphical user interface (GUI) is displayed on a touch screen monitor allowing easy control of the ultrasound system parameters. The ultrasound image is displayed on the same monitor. The system is programmed to work with the ATL HDI C5-2 (Philips Ultrasound, Andover, MA, USA).