Figure 2.

Balanced-SSFP cine images of: (A) two-chamber (2ch) view and (B) four-chamber (4ch) at end systole showing measurement of the left atrial volume (LAV) by the biplane area–length method. The atrial endocardial border was traced to delineate left atrium (LA) area excluding the pulmonary veins, LA appendage, and mitral valve recess. LA volume was measured as reported in the Section “Materials and Methods.”