The traditional intraoperative two-dimensional transesophageal echocardiography (2DTEE) has limitations in measuring left ventricular ejection fraction (LVEF) because measurements rely on geometric assumptions. The availability of online software and real time three-dimensional transesophageal echocardiography (RT3D-TEE) makes intraoperative LVEF measurements fast and easy. This is the first report of intraoperative measurement of LVEF and aortic valve area (AVA) by RT3-DTEE in a patient who received transcatheter-based transapical aortic valve implantation.

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Keywords Hemodynamics, Intraoperative 3D TEE
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Scohy, T.V, Soliman, O.I.I, Lecomte, P.V.E.L, McGhie, J.S, Kappetein, A.P, Hofland, J, & ten Cate, F.J. (2009). Intraoperative real time three-dimensional transesophageal echocardiographic measurement of hemodynamic, anatomic and functional changes after aortic valve replacement. Echocardiography: a journal of cardiovascular ultrasound and allied techniques, 26(1), 96–99. doi:10.1111/j.1540-8175.2008.00767.x