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Fig. 8 | Cardiovascular Ultrasound

Fig. 8

From: Quantification of the relative contribution of the different right ventricular wall motion components to right ventricular ejection fraction: the ReVISION method

Fig. 8

Representative pulmonary hypertension patient. Panel a: TAPSE (23 mm) was normal. Panel b: FAC (41%) was also normal indicating preserved RV systolic function. Panel c: RV end-diastolic (92 ml) and end-systolic (48 ml) volumes as well as RV ejection fraction (48%) obtained from 3D echocardiography data sets showed normal RV systolic function. Panel d: the longitudinal displacement appears supernormal. Panel e and f: By removing the longitudinal and anteroposterior components of RV volume change, the radial displacement of RV wall appears dramatically reduced. Panel g: Quantitative analysis of the relative contribution of longitudinal and radial RV wall displacement to global RV volume change confirms the significant reduction of radial displacement and an increase of longitudinal displacement as the main mechanism to preserve RV stroke volume and ejection fraction in chronic, compensated RV pressure overload pathophysiology (pulmonary artery systolic pressure: 69 mmHg)

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