Fig. 1From: Feasibility of biventricular 3D transthoracic echocardiography in the critically ill and comparison with conventional parametersTwo-dimensional (2D) [left] vs real-time three-dimensional (3D) [right] transthoracic echocardiography (echo). 2D echo provides single-plane assessment perpendicular to the piezoelectric crystal arrangement, whereas real-time 3D echo presents a pyramid or ‘volume’ of dataBack to article page