Abstract
Magnetic resonance imaging (MRI) has earned a prominent and revolutionary role in diagnostic imaging by allowing high-resolution image acquisition without harmful ionizing radiations. MRI has also gained recognition as an indispensible therapeutic adjunct in minimally invasive neurosurgical procedures by allowing precise targeting of lesions in patients with tumors or movement disorders. Newer applications such as functional MRI and magnetic resonance spectroscopy allow visualization and mapping of activity of task-specific neuronal networks, which has significant implications across a number of specialties including functional neurosurgery and psychiatry. The unique hazards of strong magnetic and radiofrequency fields, the confined space and prolonged imaging times of MRI pose unique challenges and significant limitations to patients and caregivers alike. Strict regulations serve to enhance the safe delivery of MRI. The provision of MRI for patients with implantable electronic devices such as pacemakers remains a particular area of concern and focus of research and guideline development. Anesthesiologists must have a thorough understanding of the unique aspects of anesthetic management in the MRI environment.
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