An interventional cardiologist is a cardiologist who has one to two years of additional education and training in diagnosing and treating cardiovascular diseases as well as congenital (congenital) and catheter-based procedures for structural heart conditions, such as angioplasty and stenting. What kinds of procedures do interventional cardiologists do? Cardiac catheterization This test assesses the presence, size, and location of plaque deposits in the arteries, the strength of the heart muscle, and the function of the heart valves. During cardiac catheterization, the catheter is inserted into a blood vessel in the leg or wrist and gently guided into the heart. Contrast dye is injected into the coronary arteries so the cardiologist can detect the movement of blood through the arteries and chambers of the heart. Percutaneous coronary intervention (PCI) The goal of PGI, also known as angioplasty, is to open the coronary artery to restore blood flow. PCI is a procedure scheduled for the e