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Figure 1: (a and b) Live/real time three-dimensional transthoracic echocardiographic (3D TTE) assessment of atrial septal defect (ASD). Arrowhead points to a large secundum ASD visualized from both right atrial (RA) (a) and left atrial (LA) (b) aspects. Note the large rim of tissue surrounding the defect (AS: Atrial septum). Reproduced with permission from Mehmood F, Vengala S, Nanda NC, et al. Usefulness of live three-dimensional transthoracic echocardiography in the characterization of ASD in adults. Echocardiography J 2004;21:707-13

Figure 1: (a and b) Live/real time three-dimensional transthoracic echocardiographic (3D TTE) assessment of atrial septal defect (ASD). Arrowhead points to a large secundum ASD visualized from both right atrial (RA) (a) and left atrial (LA) (b) aspects. Note the large rim of tissue surrounding the defect (AS: Atrial septum). Reproduced with permission from Mehmood F, Vengala S, Nanda NC, et al. Usefulness of live three-dimensional transthoracic echocardiography in the characterization of ASD in adults. Echocardiography J 2004;21:707-13