Fig. 3-6 A-E:
- A-C : show mean values from
M21-29, M31-39 and M41-49, respectively, which were obtained as described
earlier.
- D : shows for the sake of
comparison reconstructed valve plane displacements for transducer positions M2
to M4. A common time scale for events a' through h' was set, by summing up the
respective event-times and averaging.
- E : depicts the variation in time
for the events in M3 and M4, respectively, with regard to M2.
- a' :
Point immediately prior to atrial contraction affecting the valve plane
- b' :
Point at maximum displacement of the valve plane by atrial systole
- c':
Closing of the mitral valve
- d' :
End of the supposed isovolumetric ventricular contraction
- e' :
Point at which the valve plane has reached the same position, as prior to atrial
systole
- f' :
Amplitudinal maximum (closest approach to apex)
- g' :
End of rapid return of the valve plane, in atrial direction
- h' :
Slight rebound movement, due to overshooting