Figure 10
Top panels show the pulsed wave mitral inflow Doppler at AVD of 100, 250 and 50 ms and bottom panels show mitral inflow and aortic outflow PW Doppler at the same settings. Marked E and A fusion and diastolic mitral regurgitation (white arrows) is shown in panel B along with reduced aortic ejection time and marked increase in myocardial performance index as shown in panel D. A marked improvement in mitral diastolic filling time and E and A separation is shown in panels A and E at an AVD of 100 and 50 ms respectively and a corresponding improvement in LV ejection time as well as myocardial performance index as shown in panels B and F. Note that diastolic mitral regurgitation is still present at an AVD as short as 100ms (white arrows panel A).