Figure 2From: Left atrial volume measurement with automated border detection by 3-dimensional echocardiography: comparison with magnetic resonance imaging MRI of left atrium. Steady state free precession cine gradient echo was performed on sequential slices of the left atrium. The left atrial border was traced at end-left ventricular systole. The summation of the areas multiplied by slice thickness is the left atrial volume. LA = left atrium, RA = right atrium, LV = left ventricle.Back to article page