Typically, there are no risks associated with Cardiac MRI because it is a method of taking pictures of the organs and tissues and such a procedure does not lead to cancer and other such diseases as is popularly thought.
Cardiac MRI produces no side-effects from the magnetic fields and radio waves. This method of taking pictures of organs and tissues doesn't carry a risk of causing cancer or birth defects.
Serious reactions to the contrast agent used for MRI are very rare. However, side effects are possible and include the following:
- Nausea (feeling sick to your stomach)
- Changes in taste
- Allergic reactions
Rarely, the contrast agent can be harmful in people who have severe kidney or liver disease. It may cause a disease called nephrogenic (NEF-ro-JEN-ik) systemic fibrosis.
If your cardiac MRI includes a stress test, more medicines will be used during the test. These medicines may have other side effects that aren't expected during a regular MRI scan, such as:
- Arrhythmias (ah-RITH-me-ahs), or irregular heartbeats
- Chest pain
- Shortness of breath
- Palpitations (feelings that your heart is skipping a beat, fluttering, or beating too hard or fast)
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