Iatrogenic cerebral radiation necrosis.

Cerebral radiation necrosis is the most serious late reaction to high doses of ionising radiation to the brain, and its treatment is generally unsatisfactory. We present a patient who developed cerebral radiation necrosis after protracted fluoroscopy during repeated embolisations of an extracranial arteriovenous malformation. Treatment with bevacizumab (a humanised murine monoclonal antibody against vascular endothelial growth factor) was followed by neurological and radiological improvements.

Quantifying the Financial Savings of Motion Correction in Brain MRI: A Model-Based Estimate of the Costs Arising From Patient Head Motion and Potential Savings From Implementation of Motion Correction.

Background: Patient head motion is a major concern in clinical brain MRI, as it reduces the diagnostic image quality and may increase examination time and cost.

Purpose: To investigate the prevalence of MR images with significant motion artifacts on a given clinical scanner and to estimate the potential financial cost savings of applying motion correction to clinical brain MRI examinations.

Study Type: Retrospective.