Percutaneous Coronary Intervention (PCI), also known as coronary angioplasty, is a therapeutic procedure to treat the narrowed or stenotic section of the coronary artery of the heart due to coronary atherosclerosis. In balloon catheter angioplasty, tightly folded and narrow balloons are passed into the narrowed artery and inflated to a fixed size using liquid. This procedure reduces the narrowing of the artery by pushing the plaque (or blockage) to the sides of the artery.1
