Although fetal echocardiography remains the gold standard for prenatal detection of congenital heart disease, mainly due to its ease-of-use, availability, and high diagnostic performance, MRI is occasionally used as a complementary and safe modality. However, MRI workflow is problematic as bulk fetal motion can occur anytime during acquisition, but can only be identified retrospectively, after image reconstruction. We describe an acquisition scheme that changes this workflow and allows interactive real-time planning of the fetal cardiac scan. The operator can easily find the desired scan plane even in a moving imaging target. This technique is applied and tested in two pregnant patients.