Figure 2From: Single beat 3D echocardiography for the assessment of right ventricular dimension and function after endurance exercise: Intraindividual comparison with magnetic resonance imaging Manual tracking of right ventricular endocardial borders in CMR. Shown are two slices in the same height at the same examination. Endocardial borders in end-diastole (A) and end-systole (B) are traced. These discs are then calculated into a three-dimensional model of the ventricleBack to article page