Glossary

Angiography - An x-ray technique where dye is injected into the chambers of your heart or the arteries that lead to your heart (the coronary arteries). The test measure the blood flow and blood pressure in the heart chambers and see if the coronary arteries are blocked.

Aorta - The largest artery in the body and the initial vessel to supply blood from the heart.

Aortic valve - The valve that regulates blood flow from the heart into the aorta.

Artery - A vessel that carries oxygen-rich blood to the body.

Biopsy - The process by which a small sample of tissue is taken for examination.

Cardiovascular - Pertaining to the heart and circulatory (blood vessels) system.

Cardiologist - A doctor who specializes in the study of the heart and its function in health and disease.

Cardiology - The study of the heart and its function in health and disease.

Computed tomography (CT or CAT scan) - An x-ray technique that uses a computer to create cross-sectional images of the body.

Echocardiography - A method of studying the heart's structure and function by analyzing sound waves bounced off the heart and recorded by an electronic sensor placed on the chest. A computer processes the information to produce a one-, two- or three-dimensional moving picture that shows how the heart and heart valves are functioning.

Electrocardiogram (ECG or EKG) - A test in which several electronic sensors are placed on the body to monitor electrical activity associated with the heartbeat.

Holter monitor - A portable device for recording heartbeats over a period of 24 hours or more.