Fig. 6

Multiplanar reformats of FE-MUSIC in a 3-month old girl (7.7 kg) with Tetralogy of Fallot (ToF) and a double aortic arch. Characteristic features of ToF (a, Additional file 3: Online video 6a) including right ventricular (RV) hypertrophy with dynamic RV outflow tract obstruction, an overriding aorta, and a perimembranous ventricular septal defect (black asterisk) are clearly visualized on dynamic review. Both proximal courses of the left and right coronary arteries (a, white arrow; Additional file 3: Online video 6a) are also well visualized; the distal right coronary artery can be seen coursing along the right ventricle. Additional file 3: Online video 6a exemplifies the value of dynamic, multiphase imaging in the setting of coronary visualization. The large ventricular septal defect (a, black asterisk; b, white arrow) and the complete vascular ring from a double aortic arch (c, white arrows) are clearly delineated. There is no dynamic compression of the trachea. Colorized volume rendered cine MUSIC images (Additional file 3: Online video 6b) illustrate the dynamic complex extra-cardiac vascular anatomy and its relationship to intra-cardiac structures, which can be used to provide a more concrete image of the anatomic problem and explain a clearly complex case to parents and guardians (d, Additional file 3: Online video 6c). There is anomalous pulmonary venous drainage with the left innominate vein (black arrow, d) dipping inferiorly before joining the right innominate vein (white arrowhead, d) to form a right-sided superior vena cava. The left superior vertical vein (black arrowhead, d) joins the low bridging left innominate vein (black arrow, d) and the left superior pulmonary vein (white arrow, d), which forms the confluence of the superior pulmonary venous trunk (Additional file 3: Online video 6b, left panel). There is also a double aortic arch, which forms a complete vascular ring without tracheal compression (Additional file 3: Online video 6b, right panel). The FE-MUSIC data were further processed for 3D printing (photographed in d, Additional file 3: Online video 6c). The patient subsequently underwent successful surgical repair