title: Focal deformity of the cranial nerves observed on multislice motion-sensitized driven equilibrium (MSDE) in patients with neurovascular compression.
abstract: OBJECTIVE
  Our purpose is to demonstrate the deformity of the cranial nerves by arterial compression using a novel technique, multislice motion-sensitized driven equilibrium (MSDE).
  
  
  METHODS
  Subjects were 10 patients with neurovascular compression (5 patients with trigeminal neuralgia and 5 patients with hemifacial spasm). We observed the existence and extent of deformity of nerves by MSDE. Afterward, we compared operative findings with preoperative imaging findings and evaluated the validity of the latter.
  
  
  RESULTS
  All compressing, blood vessels could be correctly identified through preoperative evaluation. Of all patients, 7 showed deformity of the cranial nerves, which was consistent with operative findings except in one case. In postoperative evaluation, patients' neurological symptoms improved and the deformity disappeared. Three patients did not show deformity on preoperative MSDE images. In these patients, neural compression was also not observed during the operation.
  
  
  CONCLUSIONS
  The deformity of cranial nerves in patients with neurovascular compression was clearly shown using MSDE.
authors.affiliation: Department of Diagnostic Radiology, Faculty of Medicine, Yamagata University, Yamagata, Japan. mkanoto@med.id.yamagata-u.ac.jp
authors.forename: Masafumi
authors.initials: M
authors.lastname: Kanoto
authors.forename: Takaaki
authors.initials: T
authors.lastname: Hosoya
authors.forename: Atsuko
authors.initials: A
authors.lastname: Oda
authors.forename: Tsuguo
authors.initials: T
authors.lastname: Honma
authors.forename: Yukio
authors.initials: Y
authors.lastname: Sugai
mesh_terms: D000368:Aged; D003287:Contrast Media; D003391:Cranial Nerves / Q000503:physiopathology* / Q000601:surgery; D019299:Decompression, Surgical; D005260:Female; D019786:Gadolinium DTPA; D019569:Hemifacial Spasm / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D009408:Nerve Compression Syndromes / Q000503:physiopathology* / Q000601:surgery; D014277:Trigeminal Neuralgia / Q000503:physiopathology* / Q000601:surgery
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA