The magnetic fields and radio waves used during chest MRI pose no risk.
Serious reactions to the contrast dye used for some MRI tests are very rare. However, side effects are possible and include the following:
Rarely, contrast dye is harmful to people who have moderate to severe kidney disease.
The NHLBI updates Health Topics articles on a biennial cycle based on a thorough review of research findings and new literature. The articles also are updated as needed if important new research is published. The date on each Health Topics article reflects when the content was originally posted or last revised.