MRI (magnetic resonance imaging) and CT (computerized tomography) are both scans that can take pictures of any part of the body, including the heart. However, because MRI uses a powerful magnet and radio waves (instead of the series of x-rays used by CT scans), MRI scans are free from radiation. The advantage of a CT scan is that it is much faster and can be performed without medicine to keep children calm during the scan.
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Testing Procedures