If you have coronary artery disease, how can dr’s know how much plaque buildup you have in an artery?

3 Responses to “If you have coronary artery disease, how can dr’s know how much plaque buildup you have in an artery?”

  1. Cardiac Physiologist Says:

    Angiogram. A thin tube is passed into an artery in your wrist, or at the top of your leg and dye is squirted down the 2 arteries that supply your heart. The left splits into 2 arteries and the right is basically 1. An x ray picture is taken while the dye is squirted down and any narrowings can be seen.

  2. Chelle27 Says:

    Tests and diagnosis
    The doctor will ask questions about your medical history, do a physical exam and order routine blood tests. He or she may suggest one or more diagnostic tests as well, including:

    Electrocardiogram (ECG). An electrocardiogram records electrical signals as they travel through your heart. An ECG can often reveal evidence of a previous heart attack or one that's in progress. In other cases, Holter monitoring may be recommended. With this type of ECG, you wear a portable monitor for 24 hours as you go about your normal activities. Certain abnormalities may indicate inadequate blood flow to your heart.
    Echocardiogram. An echocardiogram uses sound waves to produce images of your heart. During an echocardiogram, your doctor can determine whether all parts of the heart wall are contributing normally to your heart's pumping activity. Parts that move weakly may have been damaged during a heart attack or be receiving too little oxygen. This may indicate coronary artery disease or various other conditions.
    Stress test. If your signs and symptoms occur most often during exercise, your doctor may ask you to walk on a treadmill or ride a stationary bike during an ECG. This is known as an exercise stress test. In other cases, medication to stimulate your heart may be used instead of exercise.

    Some stress tests are done using an echocardiogram. These are known as stress echos. For example, your doctor may do an ultrasound before and after you exercise on a treadmill or bike. Or your doctor may use medication to stimulate your heart during an echocardiogram.

    Another stress test known as a nuclear stress test helps measure blood flow to your heart muscle at rest and during stress. It's similar to a routine exercise stress test but with images in addition to an ECG. Trace amounts of radioactive material — such as thallium or a compound known as sestamibi (Cardiolite) — are injected into your bloodstream. Special cameras can detect areas in your heart that receive less blood flow.

    Angiogram. To view blood flow through your heart, your doctor may inject a special dye into your arteries before a chest X-ray. This is known as an angiogram. The dye outlines narrow spots and blockages on the X-ray images. If you have a blockage that requires treatment, a balloon or stent can be used to improve the blood flow in your heart.
    Electron beam computerized tomography (EBCT). This test, also called an ultrafast CT scan, can detect calcium within fatty deposits that narrow coronary arteries. If a substantial amount of calcium is discovered, coronary artery disease is likely. Other types of CT scans can also generate images of your heart arteries.
    Magnetic resonance angiography (MRA). This technique uses magnetic waves to produce a 3-D image of your coronary arteries, which your doctor can check for areas of narrowing or blockages — although the details may not be as clear as those provided by an angiogram.

  3. Mike G Says:

    Angiogram shows it nicely.