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Surgeons regularly use digital images to explore the heart in close detail. But no two human hearts are alike. This led Dr. Matthew Bramlet to create exact heart models from those images. Dr. Bramlet is a pediatric or children’s heart expert at the University of Illinois College of Medicine. He says the 3-D models show information he cannot get any other way. It allows him to hold a copy of the patient’s heart in his hand to study it. A 3-D printer uses images from a digital display to create a physical model of a human heart. Pictures from medical tests like CAT scans or MRIs are sent to a 3-D printer to create a heart in a plaster or clay form. The printer then builds the heart, thin layer by thin layer. Dr. Bramlet says the model matches the real heart in every detail. In his first case, digital images showed only one tiny hole in a baby’s heart. His model showed several defects or problems that the baby was born with, but could not be seen easily in the images. The heart surgeon was able to change the type of surgery for the patient based on the 3-D model. He added that 3-D heart models save time during heart operations. Dr. Kathy Magliato is a cardiac surgeon at Saint John’s Health Center in Los Angeles. She welcomes the new technology. She says it could help her make better decisions before she operates on the hearts of her patients. She says being able to hold the heart model in her hand means she can plan an operation before opening a body. Dr. Magliato says that is what can change the operation, and save lives.
