Intraoperative MR systems: High-field approaches

Since the introduction of MR-guided neurosurgery, the field has evolved considerably. As it has been convincingly demonstrated, MR-guided therapy seems to be feasible and safe at all clinical field strengths up to 1.5 T. This article discusses the technology of MR-guided therapy at 1.5 T, and in particular, the multiple approaches that have been advanced to date.