How to Measure Pulmonary Vein Flow Velocities

  1. Image the left pulmonary vein (or the right pulmonary vein)
  2. Align cursor with blood flow, use color flow Doppler for accuracy
  3. Place sample volume 1 cm into the pulmonary vein from the opening into the right atrium
  4. Use PW Doppler and record spectral doppler
  5. Using the preset measurements under ‘Analysis’ measure:
    1. Peak S velocity
    2. Peak D velocity
    3. Peak AR velocity
    4. AR wave duration
Pulmonary Venous Flow Ultrasound