title: Implementation of a web-based, interactive polytrauma tutorial in computed tomography for radiology residents: how we do it.
abstract: OBJECTIVE
  Due to the time factor in polytraumatized patients all relevant pathologies in a polytrauma computed tomography (CT) scan have to be read and communicated very quickly. During radiology residency acquisition of effective reading schemes based on typical polytrauma pathologies is very important. Thus, an online tutorial for the structured diagnosis of polytrauma CT was developed.
  
  
  METHODS
  Based on current multimedia theories like the cognitive load theory a didactic concept was developed. As a web-environment the learning management system ILIAS was chosen. CT data sets were converted into online scrollable QuickTime movies. Audiovisual tutorial movies with guided image analyses by a consultant radiologist were recorded.
  
  
  RESULTS
  The polytrauma tutorial consists of chapterized text content and embedded interactive scrollable CT data sets. Selected trauma pathologies are demonstrated to the user by guiding tutor movies. Basic reading schemes are communicated with the help of detailed commented movies of normal data sets. Common and important pathologies could be explored in a self-directed manner.
  
  
  CONCLUSIONS
  Ambitious didactic concepts can be supported by a web based application on the basis of cognitive load theory and currently available software tools.
authors.affiliation: Department of Diagnostic and Interventional Radiology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany. Schlorhaufer.Celia@mh-hannover.de
authors.forename: C
authors.initials: C
authors.lastname: Schlorhaufer
authors.forename: M
authors.initials: M
authors.lastname: Behrends
authors.forename: G
authors.initials: G
authors.lastname: Diekhaus
authors.forename: M
authors.initials: M
authors.lastname: Keberle
authors.forename: J
authors.initials: J
authors.lastname: Weidemann
mesh_terms: D003194:Computer-Assisted Instruction / Q000379:methods*; D003479:Curriculum; D005858:Germany; D006801:Humans; D020407:Internet; D007396:Internship and Residency / Q000458:organization & administration*; D009104:Multiple Trauma / Q000000981:diagnostic imaging*; D011871:Radiology / Q000193:education*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014194:Traumatology / Q000193:education*