title: [Experience of Fusion image guided system in endonasal endoscopic surgery].
abstract: OBJECTIVE
  To review endonasal endoscopic surgeries aided by Fusion image guided system, and to explore the application value of Fusion image guided system in endonasal endoscopic surgeries.
  
  
  METHODS
  Retrospective research. Sixty cases of endonasal endoscopic surgeries aided by Fusion image guided system were analysed including chronic rhinosinusitis with polyp (n = 10), fungus sinusitis (n = 5), endoscopic optic nerve decompression (n = 16), inverted papilloma of the paranasal sinus (n = 9), ossifying fibroma of sphenoid bone (n = 1), malignance of the paranasal sinus (n = 9), cerebrospinal fluid leak (n = 5), hemangioma of orbital apex (n = 2) and orbital reconstruction (n = 3).
  
  
  RESULTS
  Sixty cases of endonasal endoscopic surgeries completed successfully without any complications. Fusion image guided system can help to identify the ostium of paranasal sinus, lamina papyracea and skull base. Fused CT-CTA images, or fused MR-MRA images can help to localize the optic nerve or internal carotid arteiy . Fused CT-MR images can help to detect the range of the tumor. It spent (7.13 ± 1.358) minutes for image guided system to do preoperative preparation and the surgical navigation accuracy reached less than 1mm after proficient. There was no device localization problem because of block or head set loosed.
  
  
  CONCLUSIONS
  Fusion image guided system make endonasal endoscopic surgery to be a true microinvasive and exact surgery. It spends less preoperative preparation time, has high surgical navigation accuracy, improves the surgical safety and reduces the surgical complications.
authors.forename: Jingying
authors.initials: J
authors.lastname: Wen
authors.forename: Hongtao
authors.initials: H
authors.lastname: Zhen
authors.forename: Lili
authors.initials: L
authors.lastname: Shi
authors.forename: Pingping
authors.initials: P
authors.lastname: Cao
authors.forename: Yonghua
authors.initials: Y
authors.lastname: Cui
mesh_terms: D065634:Cerebrospinal Fluid Leak / Q000601:surgery; D004724:Endoscopy / Q000295:instrumentation*; D018214:Fibroma, Ossifying / Q000601:surgery; D006801:Humans; D059747:Nasal Surgical Procedures / Q000379:methods*; D019635:Neurosurgical Procedures; D009666:Nose / Q000473:pathology; D018308:Papilloma, Inverted / Q000601:surgery; D010256:Paranasal Sinuses / Q000473:pathology; D012189:Retrospective Studies; D012852:Sinusitis / Q000601:surgery; D013100:Sphenoid Bone / Q000473:pathology; D025321:Surgery, Computer-Assisted / Q000379:methods*