Does MRI pose more than minimal risk in pediatric research?

Shedding light on a question that has baffled research ethics review boards, a new analysis of the use of magnetic resonance imaging in pediatric clinical trials finds that the risks of physical and psychological harm associated with this procedure are no greater than the risks that healthy children face from everyday activities. However, adding an intravenous contrast dye or sedation to an MRI increases the odds of harm to unacceptable levels.

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