What information can be revealed by a cardiac catheterization?

Pressures. In addition to coronary anatomy and evaluation of the valves and the heart muscle, cardiac catheterization allows measurements to be obtained inside the heart chambers to determine how well the heart pumps and fills, as well as the blood pressure in the lungs. More advanced evaluation may include an intracoronary (inside the blood vessel) ultrasound to see and measure blockages (plaques).
Cardiac Cath. Most commonly to see the coronary artery anatomy but also for congenital heart disease valvular heart disease function of the heart muscle.