Continuous wave Doppler from the pulmonary vein in mitral regurgitation
Continuous wave Doppler from the pulmonary vein in mitral regurgitation
In the transthoracic echocardiogram Doppler recording of pulmonary vein flow, the systolic flow, which is normally dominant, is depressed, and the retrograde flow at the time of atrial contraction, which is normally less than the transmitral A wave, is exaggerated.