To investigate the longitudinal motion of the left ventricle, we performed Doppler tissue imaging and intramyocardial pulsed Doppler echocardiography in 32 normal subjects aged 39±14 (SD) years. Intramyocardial velocities were recorded at the lower or papillary, middle or chordal, and upper or mitral levels of the
interventricular septum and the posterior wall in the apical long-axis view. The entire left ventricle moved
toward the transducer (coded in red) during systole and moved away (coded in blue) during diastole, except
for part of the apex that moved in the opposite direction. The systolic (S), early diastolic (E), and presystolic (A) waves were recorded using ultrasonography. All three waves of the septum and the posterior wall
were significantly higher toward the mitral annulus. S and E waves were lower in the septum than in the
posterior wall. A/E values of the left ventricular walls correlated closely with A/E values of mitral inflow as
well as with age.
This new method may provide insight into assessment of global or localized left ventricular myocardial