No abstract

[(ED-ES)/ED)x100]. Examples of fetal cardiovascular abnormalities were selected to demonstrate the utility of this technology. Results: The FS for each segment was independent of gestational age and fetal biometric measurements. There was no significant difference in FS for the basal segments 1 to 5 between the right and left ventricles. The FS of the left ventricle was significantly greater (P<0.0001) than the right ventricle for the mid and apical segments as the result of movement of the interventricular septum into the left ventricle. This technique identified ventricular "tethering" in fetuses with pulmonary stenosis, hypoplastic left ventricle, and critical aortic stenosis. Conclusions:The FS of 24-segments of the right and left ventricles provides a comprehensive method to examine the function of the ventricular chambers and identify fetuses with tethering of the pathological ventricle.Supporting information can be found in the online version of this abstract OP02.03 Quantile score: a new reference system for fetal echocardiography from a large multicentre study