Fig. 1From: Comparative effectiveness of virtual reality (VR) vs 3D printed models of congenital heart disease in resident and nurse practitioner educational experienceModel Preparation. At top left, the raw blood pool is seen. Islands are selected (orange regions), removed, and the shell is wrapped (top right). A hollowed outer surface is created (bottom left), to which a myocardium is added (blue). These parts undergo Boolean union, and then are progressively trimmed to yield the final whole heart model (bottom right)Back to article page