Left Atrium by Echocardiography in Clinical Practice: From Conventional Methods to New Echocardiographic Techniques

Figure 4

Atrial contraction: wave (a) at mitral inflow (a), peak retrograde diastolic (Ar) velocity at pulmonary venous flow (b) by pulsed Doppler, and late diastolic (A′) velocity by pulsed wave tissue imaging (c).

(a)

(b)

(c)