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Figure 2 Systolic Dyssynchrony and Mitral Annulus Velocities From a Patient With Heart Failure and Normal EF
(Top) An example of systolic dyssynchrony from a patient with heart failure and normal ejection fraction (EF). Posterolateral systolic velocity (yellow) occurs 110 ms after anteroseptal systolic velocity (blue). (Lower left) Myocardial velocities at septal annulus. (Lower right) Myocardial velocities at lateral annulus. Notice the reduced systolic (Sa) and early diastolic (Ea) velocities and the markedly reduced Ea/Aa ratio at both sites. Aa = myocardial late diastolic velocity.
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