Diagnostics II - Invasive and Non-Invasive Tests

by Joseph Alpert, MD

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    Welcome back! This is Part 4 of “Cardiology: An Introduction”. This is going to be a continuation of our examination of the various cardiovascular diagnostic approaches for patients with suspected heart disease. In the previous session, we talked about the basic beginning steps in making a diagnosis - the history, the physical exam, the electrocardiogram. Now, we are going to talk about more sophisticated tests, imaging tests in particular, that will help us diagnose heart disease and, in particular, the commonest heart disease - atherosclerotic heart disease, which can lead to heart attacks and sudden death. Here is a list of the non-invasive tests. What we mean by a ‘non-invasive’ test, is that we do not have to introduce anything inside the body. We also have invasive tests. And I will talk about that in just a moment. And you can see here that the basic tests are still included. For example, the electrocardiogram, the chest X-ray, and then we move on to more sophisticated imaging tests such as ultrasound test, the echo test. We move from there to X-ray, sophisticated tests such as the CAT scan, also called the CT scan which gives us very exquisite images of the heart. And finally, the magnetic-resonance imaging test, the MRI, which gives us very detailed pictures inside the heart. And, of course, we also can record the electrocardiogram over a long period of time - 24 hours, 48 hours, 72 hours in order to see if there are abnormalities in cardiac rhythm. Let’s start with the very basic test, that is the chest X-ray. And I will show you some examples a little later in this talk. But, basically, what the chest X-ray shows us… it shows us the heart, the ribs and the lungs and gives us a rough picture...

    About the Lecture

    The lecture Diagnostics II - Invasive and Non-Invasive Tests by Joseph Alpert, MD is from the course Introduction to the Cardiac System. It contains the following chapters:

    • Invasive and Non-Invasive Tests
    • Stress Tests
    • Nuclear and Non-Invasive Ischemia Tests
    • Rules for Ordering Tests

    Quiz for lecture

    Test your knowledge with our quiz for lecture Diagnostics II - Invasive and Non-Invasive Tests.

    1. Coronary angiogram
    2. Chest x-ray
    3. Echocardiogram
    4. CT angiogram
    5. MRI
    1. An ECG, nuclear, or echo stress test
    2. Chest x-ray
    3. ECG
    4. Echocardiogram
    5. CT angiogram
    1. Electrocardiogram
    2. Chest xray
    3. Echocardiogram
    4. CT scan
    5. Magnetic resonance imaging

    Author of lecture Diagnostics II - Invasive and Non-Invasive Tests

     Joseph Alpert, MD

    Joseph Alpert, MD

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