Table 1.

Main parameters for RV assessment

View	Normal values
RV dimensions
RV-Focused four apical chamber view	Base: < 41 mm Midlevel: < 35 mm
RV area
Manual tracing of RV endocardial border from the lateral tricuspid annulus along the free wall to the apex and back to medial tricuspid annulus, along the interventricular septum at end-diastole and at end-systole	RV EDA indexed to BSA (cm2/m2) Men normal range 5–12.6 Women normal range 4.5–11.5 RV ESA indexed to BSA (cm2/m2) Men normal range 2.0–7.4 Women normal range 1.6–6.4
RV wall thickness
Linear measurement of RV free wall thickness (end-diastole) below the tricuspid annulus at a distance approximating the length of anterior tricuspid leaflet,fully open and parallel to the RV freewall	Normal value: < 5 mm
TAPSE tricuspid annular plane systolic excursion
Tricuspid annular longitudinal excursion (M-mode) is measured by proper alignmnt of M-mode cursor with the direction of RV longitudinal excursion from apical view	24 ± 3.5 mm Abnormal < 15 mm
Right ventricle outflow tract acceleration time
By positioning the sample volume at the centre of the pulmonary artery (ideally at the annulus) in the short-axis view	Abnormal < 105 ms

RV right ventricle, TAPSE tricuspid annular plane systolci excursion