title: Virtual mastoidectomy performance evaluation through multi-volume analysis.
abstract: OBJECTIVE
  Development of a visualization system that provides surgical instructors with a method to compare the results of many virtual surgeries (n > 100).
  
  
  METHODS
  A masked distance field models the overlap between expert and resident results. Multiple volume displays are used side-by-side with a 2D point display.
  
  
  RESULTS
  Performance characteristics were examined by comparing the results of specific residents with those of experts and the entire class.
  
  
  CONCLUSIONS
  The software provides a promising approach for comparing performance between large groups of residents learning mastoidectomy techniques.
authors.affiliation: Ohio Supercomputer Center, Columbus, OH, USA. kerwin@osc.edu
authors.forename: Thomas
authors.initials: T
authors.lastname: Kerwin
authors.forename: Don
authors.initials: D
authors.lastname: Stredney
authors.forename: Gregory
authors.initials: G
authors.lastname: Wiet
authors.forename: Han-Wei
authors.initials: HW
authors.lastname: Shen
mesh_terms: D002983:Clinical Competence; D003198:Computer Simulation; D006801:Humans; D007396:Internship and Residency; D008416:Mastoid / Q000601:surgery*; D012984:Software; D025321:Surgery, Computer-Assisted / Q000193:education* / Q000379:methods; D014584:User-Computer Interface