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Cardiac MRI of patients with implanted electrical cardiac devices
  1. Mark Ainslie,
  2. Christopher Miller,
  3. Benjamin Brown,
  4. Matthias Schmitt
  1. Cardiology Department, University Hospital of South Manchester, Manchester, UK
  1. Correspondence to Dr Mark Ainslie Cardiology Department, University Hospital of South Manchester, Southmoor Road, Manchester M23 9LT, UK; markpeterainslie{at}hotmail.com

Abstract

Implantable pulse generators and defibrillators have traditionally been considered contraindications to MRI. However, recent data have challenged this paradigm and demonstrated that patients with newer generation devices can safely undergo MRI, including cardiac MRI, provided basic precautions are taken. Indeed, the introduction of MRI conditional systems has led to a conceptual shift in clinical decision making—‘can this patient undergo MRI safely?’ is being superseded by ‘should this patient be implanted with an MRI conditional device?’. This review outlines the risks associated with MRI in patients with implanted cardiac devices, and discusses practical measures to minimise risks and facilitate safe and diagnostic scanning.

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