Geert Kleinnibbelink

Chapter 7 166 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 2 -2 17 19 21 23 25 27 29 31 33 RV area (cm 2 ) RV longitudinal strain (%) Baseline After saline infusion After IVC balloon inflation 0 10 20 30 40 50 60 70 17 19 21 23 25 27 29 31 33 15 RV Pressure (mmHG) RV area (cm 2 ) 35 Baseline After saline infusion After IVC balloon inflation 0 2 4 6 8 10 12 14 16 18 17 19 21 23 25 27 29 31 33 Baseline After saline infusion After IVC balloon inflation RV longitudinal strain (%) RV area (cm 2 ) A) B) C) Figure 1. Mean RV strain-area (A), transformed strain-area (B) and RV pressure-area loops (C) of n=7 patients suspected of pulmonary arterial hypertension at baseline, after saline infusion and after IVC balloon inflation. For the transformed strain-area loop, positive instead of negative strain values are used-(B).