title: Magnetic resonance imaging and bone anchored hearing implants: pediatric considerations.
abstract: OBJECTIVE
  Recent developments in bone conduction hearing systems have seen the introduction of transcutaneous devices comprising of magnetic components. Our aim was to identify the number of children implanted with a traditional, non-magnetic percutaneous bone anchored hearing implant (BAHI) who would not have been eligible for a transcutaneous implant based on magnetic resonance imaging (MRI) need.
  
  
  METHODS
  A retrospective case review of 206 children who had a percutaneous BAHI at the Birmingham Children's Hospital (January 2009-October 2012) for auditory rehabilitation.
  
  
  RESULTS
  Twenty-eight percent (56/206) of children required at least one MRI scan after receiving a BAHI and 10 percent of patients (20/206) required two or more MRI scans. The main indication for MRI scanning was for neurological co-morbidities; a MRI brain was the most common scan performed.
  
  
  CONCLUSIONS
  Although transcutaneous hearing devices/middle ear implants have their clear benefits, it may be argued that these relatively more invasive surgical procedures may not be the best option for the child who will require MRI scanning at some point in the future. Clinicians should be mindful of any need for MRI scanning when considering implant choices in the pediatric population.
authors.affiliation: Department of ENT, Birmingham Children's Hospital, UK. Electronic address: jayeshdoshi@hotmail.com.
authors.forename: Jayesh
authors.initials: J
authors.lastname: Doshi
authors.affiliation: Department of ENT, Birmingham Children's Hospital, UK.
authors.forename: Sara
authors.initials: S
authors.lastname: Schneiders
authors.affiliation: Department of Radiology, Birmingham Children's Hospital, UK.
authors.forename: Katherine
authors.initials: K
authors.lastname: Foster
authors.affiliation: Department of ENT, Birmingham Children's Hospital, UK.
authors.forename: Andrew
authors.initials: A
authors.lastname: Reid
authors.affiliation: Department of ENT, Birmingham Children's Hospital, UK.
authors.forename: Ann Louise
authors.initials: AL
authors.lastname: McDermott
mesh_terms: D001307:Auditory Perception / Q000502:physiology; D002648:Child; D002675:Child, Preschool; D003054:Cochlear Implants; D000075202:Contraindications; D006310:Hearing Aids; D006311:Hearing Disorders / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D012189:Retrospective Studies; D053441:Suture Anchors
keywords: Bone anchored hearing implant; Children; Magnetic resonance imaging