Fig. 4From: Fully automated tracking of cardiac structures using radiopaque markers and high-frequency videofluoroscopy in an in vivo ovine model: from three-dimensional marker coordinates to quantitative analysesDistances between different tricuspid annular segments to the LV apex. The change in distance between the mid-anterior tricuspid annular marker (#8) and the LV apex is a frequently used parameter to quantify right ventricular contractionBack to article page