MRI for patients with cardiac implantable electrical devices

Grant V. Chow, Saman Nazarian

Research output: Contribution to journalReview articlepeer-review

15 Scopus citations


MRI has become an invaluable tool in the evaluation of soft tissue and bony abnormalities. The presence of a cardiac implantable electrical device (CIED) may complicate matters, however, because these devices are considered a contraindication to MRI scanning. When MRI is performed in patients with a CIED, risks include reed switch activation in older devices, lead heating, system malfunction, and significant radiofrequency noise resulting in inappropriate inhibition of demand pacing, tachycardia therapies, or programming changes. This report reviews indications and risk-benefit evaluation of MRI in patients with CIED and provides a clinical algorithm for performing MRI in patients with implanted devices.

Original languageEnglish (US)
Pages (from-to)299-304
Number of pages6
JournalCardiology clinics
Issue number2
StatePublished - May 2014
Externally publishedYes


  • Cardiac implantable electrical device
  • Defibrillator
  • MRI
  • Pacemaker

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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