Harvard Heart Letter

Safety of implanted cardiac devices and MRIs: An update

Research we’re watching Contrary to conventional wisdom, most people with older implanted cardiac devices may be able to safely get a magnetic resonance imaging (MRI) scan, according to a study in the Feb. 23, 2017, New England Journal of Medicine. The devices, which include pacemakers and implantable cardioverter-defibrillators (ICDs), help regulate and restore the heart’s normal rhythm. Concerns that the powerful magnets in MRIs could damage these battery-operated devices led to the development…

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