New York-based medical company, Vascular Simulations with help from Stratasys, has been utilizing 3D Printed Models to enhance the training and treatment methods for dealing with cardiovascular disease. To create 3D printed models, Vascular Simulations uses imaging data from CT scans or MRIs and converts them into silicone models with Stratasys Dimension Elite 3D Printer.
Source: http://blog.stratasys.com/2016/06/28/3d-printed-vascular-simulation/