Figure 1From: Assessment of atrial septal defects in adults comparing cardiovascular magnetic resonance with transoesophageal echocardiographyAtrial septal defect (ASD) and margins imaged with CMR (panel A - 4 chamber view, panel B - modified biatrial short axis view) and transoesophageal echocardiography (panel C - 4 chamber view, panel D - biatrial short axis view). Margins are denoted with AS anterior superior rim, AI anterior inferior, PS posterior superior, PI posterior inferior.Back to article page