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Multiplane transesophageal echocardiographic assessment of left atrial appendage anatomy and function
S K Chan1, J P Kannam, P S Douglas
1Charles A. Dana Research Institute, Boston, Massachusetts, USA.
The American Journal of Cardiology
|September 1, 1995
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.