title: [Development of a computed tomography data-based Vibrant Bonebridge viewer].
abstract: BACKGROUND
  Because of the anatomy of the mastoid and the size of the actuator, positioning of the Vibrant Bonebridge B-FMT can be difficult without prior evaluation of the individual computed tomography (CT) scan of the temporal bone. Development of a user-friendly CT data viewer to enable positioning of the B-FMT in the temporal bone model, whilst identifying individual, potential anatomic conflicts and offering possible solutions could provide a useful tool for preoperative positioning.
  
  
  OBJECTIVE
  Aim of the study was to define the requirements of a Vibrant Bonebridge viewer and construct a prototype.
  
  
  METHODS
  Based on a ZIBAmira software version and inclusion of a B-FMT model upon creation of a model of the temporal bone-which allows the intuitive estimation of individual, anatomic conflicts-a Vibrant Bonebridge viewer was constructed.
  
  
  RESULTS
  The segmentation time of the individual digital imaging and communications in medicine (DICOM) data set is about 5 min. Positioning within the individual three-dimensional temporal bone model allows quantitative and qualitative estimation of conflicts (sigmoid sinus, middle cranial fossa) and determination of a preferred position for the B-FMT. Lifting of the B-FMT can be simulated with the help of a virtual washer.
  
  
  CONCLUSIONS
  The Vibrant Bonebridge viewer reliably allows simulation of B-FMT positioning. The clinical value of the viewer still has to be evaluated.
authors.affiliation: HNO-Klinik, Unfallkrankenhaus Berlin, Warenerstr. 7, 12683, Berlin, Deutschland, todt@gmx.net.
authors.forename: I
authors.initials: I
authors.lastname: Todt
authors.forename: H
authors.initials: H
authors.lastname: Lamecker
authors.forename: H
authors.initials: H
authors.lastname: Ramm
authors.forename: H
authors.initials: H
authors.lastname: Frenzel
authors.forename: B
authors.initials: B
authors.lastname: Wollenberg
authors.forename: T
authors.initials: T
authors.lastname: Beleites
authors.forename: T
authors.initials: T
authors.lastname: Zahnert
authors.forename: J P
authors.initials: JP
authors.lastname: Thomas
authors.forename: S
authors.initials: S
authors.lastname: Dazert
authors.forename: A
authors.initials: A
authors.lastname: Ernst
mesh_terms: D019929:Cochlear Implantation / Q000295:instrumentation / Q000379:methods*; D003054:Cochlear Implants; D006314:Hearing Loss, Conductive / Q000175:diagnosis / Q000628:therapy*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000295:instrumentation / Q000379:methods; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012984:Software; D025321:Surgery, Computer-Assisted / Q000295:instrumentation / Q000379:methods; D013701:Temporal Bone / Q000000981:diagnostic imaging* / Q000601:surgery*; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*; D014584:User-Computer Interface