How to Perform Propagation Velocity Measurements

  1. Obtain a mid-esophageal 4-chamber view
  2. Align color flow with the transmitral flow, change the size of the box to include both the mitral annulus and the left ventricular apex
  3. Change the color map baseline towards blue to a velocity of 20 cm/sec
  4. Align the Doppler beam with the blood flow through the mitral valve
  5. Activate M-mode
  6. You should obtain a waveform pattern as in the image below
  7. Measure the slope of the first aliasing velocity from the mitral annulus to 4 cm into the LV.
Propagation Velocity Image