title: Cardiac magnetic resonance in a patient with MRI-conditional pacemaker.
abstract: An implanted pacemaker is generally considered a contraindication for magnetic resonance imaging (MRI). The increasing number of indications for MRI and the rising prevalence of implanted cardiac pacemakers have prompted the recent development of MRI-conditional pacemaker systems. We present the case of a 68-year-old woman with left ventricular hypertrophy, hypertension, aortic valve stenosis and a family history of cardiac amyloidosis, who developed complete heart block. In view of the foreseeable need for cardiac MRI, an MRI-conditional dual chamber pacemaker was implanted. The MRI scan confirmed moderate left ventricular hypertrophy and aortic valve stenosis, and showed no delayed enhancement suggestive of amyloid heart disease. This case illustrates the feasibility of cardiac MRI in this setting and the usefulness of the recently introduced MRI-conditional pacemaker systems.
authors: Serviço de Cardiologia, Hospital dos Lusíadas, Lisboa, Portugal. miguelferreira.md@sapo.pt
authors: António Miguel
authors: AM
authors: Ferreira
authors: Lígia
authors: L
authors: Mendes
authors: Luís
authors: L
authors: Soares
authors: Maria
authors: M
authors: da Graça Correia
authors: Victor
authors: V
authors: Gil
mesh_terms: D000368:Aged; D057791:Cardiac Imaging Techniques; D000075202:Contraindications; D004867:Equipment Design; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D010138:Pacemaker, Artificial