TEE measurements of LAA emptying velocities. LAA flow velocity profiles by TEE in a patient with SR (Figure 3A) and in a patient with AF (Figure 3B). Peak e-wave velocity was 28 cm/s and peak a-wave velocity was 73 cm/s in patient A. Mean peak e-wave velocity of five consecutive beats was 26 cm/s in patient B. Prominent f-waves were detected similar to the VENC-CMR flow curve (Figure 3B), corresponding to high-amplitude atrial fibrillation waves in ECG in this patient.