title: Utility of a moveable 1.5 Tesla intraoperative MR imaging system.
abstract: OBJECTIVE
  This study demonstrates the utility of a newly-developed moveable 1.5 Tesla intraoperative MR imaging system using a case report of a multi-lobulated parafalx meningioma.
  
  
  METHODS
  A 43-year-old female presented with progression of a multi-lobulated anterior parafalx meningioma several years following resection of a large left frontal convexity meningioma.
  
  
  METHODS
  Surgical excision of the lesion was undertaken. Following apparent total resection, intraoperative MR imaging revealed two residual dumbell shaped lobules. Using these updated MR images, the tumour was readily identified and removed.
  
  
  CONCLUSIONS
  The moveable 1.5 Tesla intraoperative MR system used in the present case provides rapid, high resolution MR images during neurosurgical procedures. Moving the magnet out of the surgical field during surgery permits the use of all standard neurosurgical instruments. The ease of use and quality of images combined with minimal interference on well-established surgical techniques makes this system a valuable adjunct in the neurosurgical treatment of intracranial disease.
authors.affiliation: Department of Clinical Neurosciences, University of Calgary, Alberta.
authors.forename: T
authors.initials: T
authors.lastname: Kaibara
authors.forename: J K
authors.initials: JK
authors.lastname: Saunders
authors.forename: G R
authors.initials: GR
authors.lastname: Sutherland
mesh_terms: D000328:Adult; D004865:Equipment and Supplies, Hospital; D005260:Female; D005682:Gadolinium; D006801:Humans; D007432:Intraoperative Period; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*; D008577:Meningeal Neoplasms / Q000175:diagnosis* / Q000601:surgery; D008579:Meningioma / Q000175:diagnosis* / Q000601:surgery; D009364:Neoplasm Recurrence, Local; D009873:Operating Rooms; D012086:Reoperation
chemical_list: D005682:Gadolinium