Doppler sonography

This set-up shows how blood flow studies are performed using Doppler ultrasound (Doppler sonograph). On a realistic arm dummy, the differences between continuous (venous) and pulsating (arterial) flow are shown as well as the difference in flow through a normal blood vessel and a stenosis. Ideal experiment for medical students to learn the principles of Doppler sonography True to life with an arm model with blood vessels and stenosis Experiment components can also be used for other experiments relevant for medical students  Display of measurement values as with a diagnostic system Analyse blood flow and search positive and negative flow components. Explain the differences. Locate the built-in stenosis and compare the spectral distribution upstream and downstream of the stenosis. Examine and compare the three pulse modes of the pump. Venous flow Arterial flow Stenosis Blood flow velocity tracings Frequency shift Doppler effect Doppler angle Doppler sonography Colour Doppler Continuity equation