Diagnosing Paroxysmal Atrial Fibrillation: Are Biomarkers the Solution to This Elusive Arrhythmia?

Figure 6

Measurement of left atrial velocity using tissue Doppler. The left image demonstrates the position of the probe at the lateral mitral annulus. The right image represents the velocities generated during diastole with the atrial component (termed ) marked (unpublished).

(a)

(b)