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Mike Mitka

JAMA. 2009;301(5):476.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Chicago—Magnetic resonance imaging (MRI) is problematic for patients with electrical heart pacemakers because the procedure may interact with the device in ways that compromise patient safety.

Although MRI is indicated for up to 75% of patients with this cardiac device, only those who have certain types of pacemakers might be eligible for the procedure—and even then, MRI for patients with such pacemakers remains controversial because it is not approved by the US Food and Drug Administration and it is only being performed in specialized centers.

Because of this, device manufacturers have been developing new MRI-safe pacemakers. Early findings from a study of one such device show promise, reported Emanuel Kanal, MD, at the Scientific Assembly of the Radiological Society of North America held here in December. Kanal is director of Magnetic Resonance Services and a professor of radiology and neuroradiology at the University of Pittsburgh Medical Center.

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