Matthew R. Reynolds, MD, MSc; Peter Zimetbaum, MD
Potential Conflicts of Interest: Disclosures can be viewed at www.acponline.org/authors/icmje/ConflictOfInterestForms.do?msNum=M11-2029.
Requests for Single Reprints: Peter Zimetbaum, MD, Division of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, 185 Pilgrim Road, Boston, MA 02215.
Current Author Addresses: Drs. Reynolds and Zimetbaum: Division of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, 185 Pilgrim Road, Boston, MA 02215.
Reynolds M., Zimetbaum P.; Magnetic Resonance Imaging and Cardiac Devices: How Safe Is Safe Enough?. Ann Intern Med. 2011;155:470-472. doi: 10.7326/0003-4819-155-7-201110040-00010
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Published: Ann Intern Med. 2011;155(7):470-472.
Several million persons in the United States are currently living with implanted cardiac rhythm management devices (CRMDs); a few hundred thousand new devices are implanted annually (1). The majority of these patients are older than 60 years. As the long-term survival of this population improves and utilization of CRMDs continues to grow (2), the probability increases that many of these patients will encounter medical situations for which magnetic resonance imaging (MRI) may be useful, or even critical, for optimal diagnosis and treatment. This likelihood is difficult to assess because the value of MRI relative to alternatives may vary, but estimates of greater than 50% have been published (3).
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Cardiology, Rhythm Disorders and Devices.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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