title: MRI Mode Programming for Safe Magnetic Resonance Imaging in Patients With a Magnetic Resonance Conditional Cardiac Device.
abstract: Although diagnostically indispensable, magnetic resonance imaging (MRI) has been, until recently, contraindicated in patients with an implantable cardiac device. MR conditional cardiac devices are now widely used, but the mode programming needed for safe MRI has yet to be established. We reviewed the details of 41 MRI examinations of patients with a MR conditional device. There were no associated adverse events. However, in 3 cases, paced beats competed with the patient's own beats during the MRI examination. We describe 2 of the 3 specific cases because they illustrate these potentially risky situations: a case in which the intrinsic heart rate increased and another in which atrial fibrillation occurred. Safe MRI in patients with an MR conditional device necessitates detailed MRI mode programming. The MRI pacing mode should be carefully and individually selected.
authors.affiliation: Division of Cardiology, Department of Medicine, Nihon University School of Medicine.
authors.forename: Toshiko
authors.initials: T
authors.lastname: Nakai
authors.forename: Sayaka
authors.initials: S
authors.lastname: Kurokawa
authors.forename: Yukitoshi
authors.initials: Y
authors.lastname: Ikeya
authors.forename: Kazuki
authors.initials: K
authors.lastname: Iso
authors.forename: Keiko
authors.initials: K
authors.lastname: Takahashi
authors.forename: Naoko
authors.initials: N
authors.lastname: Sasaki
authors.forename: Sonoko
authors.initials: S
authors.lastname: Ashino
authors.forename: Kimie
authors.initials: K
authors.lastname: Okubo
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Okumura
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kunimoto
authors.forename: Ichiro
authors.initials: I
authors.lastname: Watanabe
authors.forename: Atsushi
authors.initials: A
authors.lastname: Hirayama
mesh_terms: D000368:Aged; D054537:Atrioventricular Block / Q000150:complications / Q000503:physiopathology / Q000628:therapy*; D001919:Bradycardia / Q000150:complications / Q000503:physiopathology / Q000628:therapy*; D001921:Brain / Q000473:pathology*; D002544:Cerebral Infarction / Q000150:complications / Q000175:diagnosis; D017147:Defibrillators, Implantable; D004562:Electrocardiography / Q000528:radiation effects; D006339:Heart Rate / Q000528:radiation effects; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D010138:Pacemaker, Artificial; D061214:Patient Safety; D010911:Pituitary Neoplasms / Q000150:complications / Q000175:diagnosis; D012189:Retrospective Studies; D012984:Software / Q000592:standards*