Subject has an active implantable or other electromagnetic device.
Implantable electronic medical devices in the brain
History of arrhythmia requiring an implantable cardiac defibrillator
Implantable electronic medical devices (e.g. pacemaker, defibrillator) in the upper torso
Implantable electronic device in the brain
Subjects unable (due to existent medical condition, e.g., pacemaker or implantable cardioverter defibrillator [ICD] device) or unwilling to have a head contrast enhanced MRI.
Patients who are unable to get MRIs due to any reason including pacemakers or automatic implantable cardioverter-defibrillator (AICD) are ineligible
Current use of any electronic stimulation device, such as cardiac demand pacemakers, automatic implantable cardiac defibrillator, nerve stimulators, or deep brain stimulators
Current use of any electronic stimulation device, such as cardiac demand pacemakers, automatic implantable cardiac defibrillator, nerve stimulators, or deep brain stimulators
History of arrhythmia requiring an implantable cardiac defibrillator.
implantable
Subjects unable (due to existent medical condition, e.g., pacemaker or implantable cardioverter-defibrillator [ICD] device) or unwilling to have a head contrast enhanced MRI
Presence of cardiac pacemaker or implantable cardioverter-defibrillator
Current use of any electronic stimulation device, such as cardiac demand pacemakers, automatic implantable cardiac defibrillator, nerve stimulators, or deep brain stimulators
Current use of any electronic stimulation device, such as cardiac demand pacemakers, automatic implantable cardiac defibrillator, nerve stimulators, or deep brain stimulators
Automatic implantable cardioverter defibrillator (AICD) placement within the last  days
Implantable pacemaker or implantable cardioverter defibrillator
Patients with pacemaker or an implantable cardioverter defibrillator (ICD) devices
History of arrhythmia requiring an implantable cardiac defibrillator
Patients considered at risk for life-threatening QTc prolongation (i.e., personal or family history of Long QT syndrome, presence of implantable pacemaker, or implantable cardioverter defibrillator, etc.)
History of arrhythmia requiring an implantable cardiac defibrillator;
Significant active cardiovascular or pulmonary disease at study entry ? History of arrhythmia requiring an implantable cardiac defibrillator
A pacemaker or implantable cardiac defibrillator
Implantable pacemaker or implantable cardioverter defibrillator
Implantable pacemaker or implantable cardioverter defibrillator
Implantable cardioverter defibrillator.
Implantable pacemaker or automatic implantable cardioverter defibrillator
Obligate use of a cardiac pacemaker or implantable cardioverter defibrillator
Obligate use of a cardiac pacemaker or implantable cardioverter defibrillator
Wearing a pacemaker or implantable cardioverter-defibrillator; uncontrolled seizure disorder
Participants who have a pacemaker, pacer wires, implantable defibrillator, or implanted monitoring device
Presence of pacemaker/implantable cardioverter-defibrillator (ICD) or perfusion pumps
Implantable cardioverter defibrillator.