Figure 1
From: Increased biventricular hemodynamic forces in precapillary pulmonary hypertension
Right ventricular outflow tract in one patient with precapillary pulmonary hypertension: relative pressure gradients, hemodynamic forces and flow. (A) The colored field illustrates the relative pressure gradients. Local hemodynamic forces are illustrated with white arrows, with direction and magnitude indicated for each point. (B) The global force (white arrow) is a sum of all local forces and drives the blood flow (red arrow) towards the pulmonary artery during systole. (C) By the end of systole, the global force is directed in the opposite direction of the flow, thereby decelerating the blood. The global force is analyzed in three directions for each ventricle (Fig. 2).
