Portable ultrasound system for blood velocity estimation

Abstract

For blood flow estimation, ultrasound imaging is an important tool. This project report outlines the design, implementation, and analysis of such ultrasound blood velocity estimator. The design is based off a central control system on a Xilinx Zynq 7000 SoC for generating ultrasound pulses and the various timing signals needed for operating the custom designed analogue front-end. The chosen design topology uses a pulsed-wave design with quadrature demodulation to obtain the Doppler frequency. The system was module tested, but was not fully end-to-end tested on a physiological simulator due to time constraints.