Fig. 19
From: Non-invasive pediatric cardiac imaging—current status and further perspectives
(Four-chamber view in a late gestational healthy fetus): illustrating diastolic (left) and systolic (right) phases using Doppler ultrasound gated cardiac MRI. Ovale foramen as the physiological atrial shunt in the prenatal period is visualized in both diastolic and systolic phases. Motion artifacts (due to missing ECG triggering) normally blur cardiac contours in standard fetal MRI images