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Left and right ventricular size and global function as well as cardiac hemodynamics pre and post <jats:styled-content style=\"fixed-case\">TAVR<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">LV<\/jats:styled-content> regional wall motion can be assessed. Three\u2010dimensional (3D) imaging adds significantly via accurate measurement of aortic annulus that helps select the appropriate valve size. Biplane imaging allows simultaneous assessment of target cardiac structure in two orthogonal views and provides a rapid assessment during and immediately post valve deployment by evaluating stent height, leaflet motion, and the presence and severity of paravalvular leak (<jats:styled-content style=\"fixed-case\">PVL<\/jats:styled-content>). 2<jats:styled-content style=\"fixed-case\">DTEE<\/jats:styled-content> and 3<jats:styled-content style=\"fixed-case\">DTEE<\/jats:styled-content> allow evaluation of mechanism of <jats:styled-content style=\"fixed-case\">PVL<\/jats:styled-content> that helps guide the decision regarding need for balloon post dilation of the implanted valve or valve in valve 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