Ultrasound system, non-imaging, Doppler blood-flow measurement

Doppler blood-flow measurement devices are ultrasound devices using the Doppler effect , designed to measure blood flow velocities in arteries and veins mainly subcutaneously . These devices detect and measure blood flow related parameters of the heart, arteries and veins , with applications ranging from technical verification during carotid surgery and shunt patency assessment to transanal haemorrhoidal dearterialization in haemorrhoidal disease .