title: Theoretical observation on diagnosis maneuver for benign paroxysmal positional vertigo.
abstract: CONCLUSIONS
  To make a comprehensive analysis with a variety of diagnostic maneuvers is conducive to the correct diagnosis and classification of BPPV.
  
  
  OBJECTIVE
  Based on the standard spatial coordinate-based semicircular canal model for theoretical observation on diagnostic maneuvers for benign paroxysmal positional vertigo (BPPV) to analyze the meaning and key point of each step of the maneuver.
  
  
  METHODS
  This study started by building a standard model of semicircular canal with space orientation by segmentation of the inner ear done with the 3D Slicer software based on MRI scans, then gives a demonstration and observation of BPPV diagnostic maneuvers by using the model.
  
  
  RESULTS
  The supine roll maneuver is mainly for diagnosis of lateral semicircular canal BPPV. The Modified Dix-Hallpike maneuver is more specific for the diagnosis of posterior semicircular canal BPPV. The side-lying bow maneuver designed here is theoretically suitable for diagnosis of anterior semicircular canal BPPV.
authors.affiliation: a Neurology Department , Wenzhou People's Hospital , Wenzhou , Zhejiang , PR China.
authors.forename: Xiao-Kai
authors.initials: XK
authors.lastname: Yang
authors.affiliation: a Neurology Department , Wenzhou People's Hospital , Wenzhou , Zhejiang , PR China.
authors.forename: Yan-Yan
authors.initials: YY
authors.lastname: Zheng
authors.affiliation: a Neurology Department , Wenzhou People's Hospital , Wenzhou , Zhejiang , PR China.
authors.forename: Xiao-Guo
authors.initials: XG
authors.lastname: Yang
mesh_terms: D065635:Benign Paroxysmal Positional Vertigo / Q000175:diagnosis*; D006801:Humans; D021621:Imaging, Three-Dimensional; D008279:Magnetic Resonance Imaging; D008954:Models, Biological; D010808:Physical Examination / Q000379:methods*; D012189:Retrospective Studies
keywords: Semicircular canal; diagnosis maneuver; model; theory; vertigo