Central nervous system MRI and cardiac implantable electronic devices.
As the population ages and indications for MRI increase, it is estimated that 50 to 75% of patients with a cardiac implantable electronic device (CIED) - pacemaker (PM) or implanted cardiac defibrillator (ICD) - will need an MRI during their CIED's lifetime. Three categories of materials are defined: MRI compatible, MRI non-compatible, and MRI conditional. MRI compatible CIEDs without electrodes have been developed, but do not allow battery changes, so that they are exclusively indicated for patients whose life expectancy is less than that of the battery (6-7years). For MRI conditional CIEDs, all manufacturers publish restrictions. These restrictions can relate to the patient (size, position in the MRI, body temperature), the MRI parameters (magnetic field), or the examination in itself (gradients, specific absorption rate, duration, isocenter). The neuroradiologist can expect to be confronted with the issue of MRI in patients with a CIED. The purpose of this review is to provide them with updated information on MRI and CIEDs.
Neuroradiology department, University Hospital of Brest, LaTIM, Inserm UMR 1101, boulevard Tanguy-Prigent, 29609 Brest cedex, France.
Romain
R
Cadieu
Neuroradiology department, University Hospital of Brest, LaTIM, Inserm UMR 1101, boulevard Tanguy-Prigent, 29609 Brest cedex, France.
Marilyne
M
Peron
Cardiology department, University Hospital of Brest, ORPHY, EA 4324, boulevard Tanguy-Prigent, 29609 Brest cedex, France.
Florent
F
Le Ven
Neuroradiology department, University Hospital of Brest, LaTIM, Inserm UMR 1101, boulevard Tanguy-Prigent, 29609 Brest cedex, France.
Sébastien
S
Kerdraon
Radiology department, University Hospital of Saint-Étienne, North hospital, Inserm U1059, avenue Albert-Raimond, 42055 Saint-Étienne cedex 2, France. Electronic address: claire.boutet@chu-st-etienne.fr.
Claire
C
Boutet
Cardiology department, University Hospital of Brest, ORPHY, EA 4324, boulevard Tanguy-Prigent, 29609 Brest cedex, France.
Jacques
J
Mansourati
Neuroradiology department, University Hospital of Brest, LaTIM, Inserm UMR 1101, boulevard Tanguy-Prigent, 29609 Brest cedex, France.
Douraied
D
Ben Salem
D000075202:Contraindications; D017147:Defibrillators, Implantable; D006801:Humans; D008279:Magnetic Resonance Imaging; D010138:Pacemaker, Artificial; D061214:Patient Safety; D012307:Risk Factors
Cardiac implantable electronic device; Implanted cardiac defibrillator; Magnetic Resonance Imaging; Pacemaker; Safety