title: MRI scanning in patients implanted with a Vibrant Soundbridge.
abstract: OBJECTIVE
  To observe the in vivo effects of MRI scanning on the Vibrant Soundbridge system.
  
  
  METHODS
  Retrospective questionnaire.
  
  
  METHODS
  Sixty-three implantees answered a retrospective questionnaire covering their medical/otological and physical conditions pre-, intra-, and post-magnetic resonance imaging scanning (MRI). Bone conduction (BC) thresholds were measured after MRI scanning and compared with the prescan BC.
  
  
  RESULTS
  Thirteen implantees (20.6%) underwent 19 MRI scans (1; 1.5 T) for different medical indications (e.g., exclusion of a brain tumour, lumbar disc herniation etc.). Scanner-related impulse noise, pain in the middle ear, or pressure at the receiver bed, as well as changes of the transfer function of the floating mass transducer (FMT) are observed frequent effects of MRI scanning. Two patients required transtympanal repositioning of the FMT. A subjectively reported or objectively documented sensorineural hearing loss was not found in any of our patients in this series.
  
  
  CONCLUSIONS
  MRI scanning with an implanted Vibrant Soundbridge has possible major side effects, but did not affect cochlear function in this series.
authors.affiliation: Department of Otolaryngology at ukb, Hospital of the University of Berlin (Charité Medical School), Germany. todt@gmx.net
authors.forename: Ingo
authors.initials: I
authors.lastname: Todt
authors.forename: Jan
authors.initials: J
authors.lastname: Wagner
authors.forename: Romy
authors.initials: R
authors.lastname: Goetze
authors.forename: Sandra
authors.initials: S
authors.lastname: Scholz
authors.forename: Rainer
authors.initials: R
authors.lastname: Seidl
authors.forename: Arne
authors.initials: A
authors.lastname: Ernst
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001301:Audiometry, Pure-Tone; D001309:Auditory Threshold; D005260:Female; D005500:Follow-Up Studies; D006310:Hearing Aids; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000009:adverse effects* / Q000379:methods; D008297:Male; D008875:Middle Aged; D009998:Ossicular Prosthesis; D019919:Prosthesis Implantation; D012189:Retrospective Studies; D018570:Risk Assessment; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D014732:Vibration