APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Sometimes, computed tomography (CT) scans can be used instead. But MRI is the gold standard for diagnosing certain diseases of the brain and spinal cord. Implanted cardiac devices (which include both pacemakers and defibrillators) can be damaged by an MRI scan.

Detailed explanation-2: -Background. Magnetic resonance imaging (MRI) is generally contraindicated for patients with a pacemaker (PM) or implantable cardiac defibrillator (ICD), because of the risk of life-threatening interference with the device.

Detailed explanation-3: -A) Absolute contraindications: The cardiac implantable electronic device (CIED) such as pacemakers, implantable cardioverter defibrillators (ICDs) and cardiac resynchronization therapy (CRT) devices: Patients with CIED are at risk for inappropriate device therapy, device heating/movement, and arrhythmia during MRI.

Detailed explanation-4: -Unlike magnetic resonance imaging, a CT scan can be done even if you have a pacemaker or cardioverter defibrillator. Sometimes a CT scan will be done after you have swallowed a contrast medium.