Cardiac catheterization is a procedure accomplished by passing small tubes or catheters into the heart from arteries and veins in the groin or arm. A cardiologist with specialized training performs it. The study includes the observation of the heart's pumping function and the visualization of the coronary arteries, which supply the heart muscle with blood.Echocardiogram (echo) and Doppler ultrasound are tests use ultrasound waves sent to the body and are returned through a microphone. An echo study provides an image of the moving heart and allows examination of the movement of blood through the heart.Stress echocardiogram (stress echo) is an echocardiography examination conducted during exercise. Exercise will be done using a treadmill or if walking is difficult, medication can be infused to simulate exercise. An echocardiogram is performed immediately exercise. An echo study provides an image of the moving heart and allows examination of the movement of blood through the heart.Stress Test (Treadmill) is an electrocardiogram (ECG) study conducted during exercise. Exercise will be done using a treadmill or if walking is difficult, medication can be infused to simulate exercise. During exercise, the ECG measures and records these electrical impulses as they travel through the heart muscle. It indicates if there is damaged heart tissue interfering with the normal flow of electrical impulses through the heart.Thallium Stress Test is a type of nuclear scanning test for myocardial perfusion (blood flow in the heart). This test shows how well blood flows to the heart muscle. Done with conjunction an exercise stress test on a treadmill.Electrocardiogram (ECG) is a test in which several electronic sensors are placed on the body to monitor electrical activity associated with the heartbeat.Chest X-Ray is one of the simplest diagnostic tools. It will tell the size, shape of the heart, and the condition of the lungs. Holter Electrocardiogram (ECG) is a continuous recording of your heart's rhythm for 24 or 48 hours; The Holter ECG will provide your physician with a record of how your heart reacts to situations during rest, activity, and stress while in your home environment.Permanent Pacemaker is an electronic device consisting of an electrode connected to the heart muscle and a regulatory device and power source implanted in the skin. It provides regular, mild electric shocks that stimulate the heart muscle and maintain normal heartbeat.