What Is The Full Form Of CAG in Medical ? CAG ’s full form in medical term is Coronary Angiogram or Coronary Artery Angiography, a procedure to visualize the arteries in the human heart. Coronary Angiogram is also known as Cardiac Catheterization. If a patient has chest pain, is born with a heart defect, or has a heart valve problem, doctors may suggest Coronary Angiogram understand the medical situation better. Also, in emergency conditions like acute heart attack, CAG can be performed by ... Coronary angiography is a procedure that uses a special dye (contrast material) and x-rays to see how blood flows through the arteries in your heart. During a coronary angiogram procedure, a small catheter is inserted through the skin into an artery at the arm or groin, slowly advancing to the opening of the coronary arteries. A solution containing iodine is injected into each coronary artery, where visualization can be observed from an x-ray. Angiographic images accurately reveal the extent and severity of all coronary artery blockages, the strength of heart muscles and performance of the cardiac valves. CAG stands for coronary angiogram, a medical test that uses X-ray imaging to examine the heart's blood vessels. It can help diagnose and treat coronary artery disease, heart defects, or valve problems.