Doppler sonography

螢幕截圖 2016-04-05 14.09.05 螢幕截圖 2016-03-15 10.32.44  螢幕截圖 2016-03-15 10.33.19

Item no.: P5950100

Principle

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.

Tasks

  1. Analyse blood flow and search positive and negative flow components. Explain the differences.
  2. Locate the built-in stenosis and compare the spectral distribution upstream and downstream of the stenosis.
  3. Examine and compare the three pulse modes of the pump.

What you can learn about

  • Venous flow
  • Arterial flow
  • Stenosis
  • Blood flow velocity tracings
  • Frequency shift
  • Doppler effect
  • Doppler angle
  • Doppler sonography
  • Colour Doppler
  • Continuity equation