* Represents the height of the LA roof from the point where the LAPW and esophagus make contact.

AF, atrial fibrillation; GH, gastric hypomotility; LA, left atrial; LAPW, left atrial posterior wall; LIPV, left inferior pulmonary vein; LSPV, left superior pulmonary vein; RIPV, right inferior pulmonary vein; RSPV, right superior pulmonary vein.