Anaesthesia for neuroradiology.

M ANY recent developments in technology have resulted in great progress in the investigation and treatment of patients with central nervous system diseases by radiological procedures. Anaesthetists may be involved in the care of these patients when the procedures are prolonged or uncomfortable, require complete immobility of the patient, or when the patient does not tolerate the procedure without sedation. The objectives of this lecture will be first, to review the general principles of anaesthesia outside of the operating room as illustrated by the management of patients during magnetic resonance imaging (MRI), and secondly, the discussion of anaesthesia for interventional neuroradiology (INR) with an update of the endovascular treatment of cerebral aneurysms and strokes.