Fig. 3From: A review of the LARIAT device: insights from the cumulative clinical experience a The dashed line indicates the desired ligation site, just inferior to the Coumadin ridge (arrow). b The proximal end of the balloon is positioned at the LAA orifice under TEE guidance. The radio-opaque marker at the proximal end of the balloon (arrow) guides advancement of the LARIAT system over the LAA os under fluoroscopy; PV pulmonary veinBack to article page