title: Multiplane transesophageal echocardiographic assessment of left atrial appendage anatomy and function.
abstract: Anatomic indexes of the LAA are dependent on the plane in which the appendage is viewed. Greater LAA neck width and cross-sectional area are observed at 135 degrees than at 45 degrees or 90 degrees, consistent with the characteristic 3-dimensional ungular shape of this structure. Appendage ejection and inflow velocity measurements are independent of the imaging plane.
authors.affiliation: Charles A. Dana Research Institute, Boston, Massachusetts, USA.
authors.forename: S K
authors.initials: SK
authors.lastname: Chan
authors.forename: J P
authors.initials: JP
authors.lastname: Kannam
authors.forename: P S
authors.initials: PS
authors.lastname: Douglas
authors.forename: W J
authors.initials: WJ
authors.lastname: Manning
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016279:Atrial Function, Left; D001783:Blood Flow Velocity; D018619:Echocardiography, Doppler, Pulsed; D017548:Echocardiography, Transesophageal / Q000379:methods; D005260:Female; D006325:Heart Atria / Q000000981:diagnostic imaging*; D006331:Heart Diseases / Q000000981:diagnostic imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D013927:Thrombosis / Q000000981:diagnostic imaging