Figure 8From: Echocardiographic assessment of ischemic mitral regurgitation Pulsed wave Doppler of transmitral flow. Pulsed wave Doppler interrogation from the apical four chamber view of the transmitral diastolic flows into the LV can provide adjunct information to grading of MR severity. In this example, the E wave measures approximately 1.6Â m/s, and this is consistent with a high flow rate of early diastolic passive LV filling which can be seen with severe MR.Back to article page