June 13, 2016 – While 3-D printing has been around since the mid-1980s, there is accumulating evidence that this technology has the potential to revolutionize the understanding and management of heart conditions. A team of researchers from the Cleveland Clinic created a 3-D model of an aortic valve from a patient with a severe case of calcific aortic stenosis (AS) — narrowing of the aortic valve — to simulate the patient’s beating heart and assess the blood flow, or “hemodynamics.”