Cardiac Catheterization is done in a special room called the ‘Cardiac Catheterization Laboratory’ (Cath Lab). This contains a special table with X-ray source and an X-ray movie camera, which can be revolved around the patient on the table. The camera records the movie of the coronary arteries on CD, DVD, films or cassettes.
A catheter is passed to the heart via an artery in the groin or the wrist. And a dye which can be seen in an X-ray is passed into the coronary arteries. While the dye passes through the coronary arteries its motion is captured by the X-Ray video camera on computer media and saved on CD or DVD.