title: How should we measure left atrium size and function?
abstract: Echocardiographic assessment of left atrial size from M-mode or 2D echocardiography measurements has been used in clinical and research studies for years, but its accuracy is now questioned. New techniques, such as 3D and tissue Doppler imaging, assessing velocities, strain and strain rate, provide improved prognostic value in a wide range of diseases. 2D strain imaging using speckle tracking on B-mode images may yield even better, angle-independent, results than tissue Doppler imaging-derived strain echocardiography. Finally, velocity vector imaging is a novel image analysis technique that may be used to quantify left atrial volume.
authors.affiliation: Applied and Experimental Medicine Department, Chair of Cardiology University of Brescia, Brescia, Italy.
authors.forename: Enrico
authors.initials: E
authors.lastname: Vizzardi
authors.forename: Antonio
authors.initials: A
authors.lastname: D'Aloia
authors.forename: Elena
authors.initials: E
authors.lastname: Rocco
authors.forename: Laura
authors.initials: L
authors.lastname: Lupi
authors.forename: Riccardo
authors.initials: R
authors.lastname: Rovetta
authors.forename: Filippo
authors.initials: F
authors.lastname: Quinzani
authors.forename: Luca
authors.initials: L
authors.lastname: Bontempi
authors.forename: Antonio
authors.initials: A
authors.lastname: Curnis Md
authors.forename: Livio
authors.initials: L
authors.lastname: Dei Cas
mesh_terms: D002306:Cardiac Volume; D015150:Echocardiography, Doppler / Q000379:methods*; D019560:Echocardiography, Three-Dimensional / Q000379:methods*; D006325:Heart Atria / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D009929:Organ Size; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed / Q000379:methods