A Coronary Angiography is a test to find out if you have a blockage in a coronary artery. Your doctor will be concerned that you�re at risk of a heart attack if you have unstable angina, atypical chest pain, aortic stenosis, or Unexplained heart failure. During the coronary angiography, a CONTRAST dye will be injected into your arteries through a catheter (thin, plastic tube), while your doctor watches how blood flows through your heart on an X-ray screen. This test is also known as a cardiac angiogram, catheter arteriography, or cardiac catheterization.
CT - Coronary Angiogram is used to view your heart and blood vessels. During the test, a specialized dye is injected into your bloodstream. The dye is then viewed under a special camera in a hospital or testing facility. A heart CT scan may also be called a coronary CT Angiogram if it�s meant to view the arteries that bring blood to your heart. The test may be called a coronary calcium scan if it�s meant to determine whether there�s a build-up of calcium in your heart.