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MRI compatibility issues in otology.

Michael H Fritsch1, Kristine M Mosier

  • 1Department of Otolaryngology-Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA. mfritsch@iupui.edu

Current Opinion in Otolaryngology & Head and Neck Surgery
|September 8, 2007
PubMed
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Higher MRI magnet strengths and diverse otologic prostheses pose safety risks. This review of 33 studies confirms variability in interactions, offering recommendations for safe magnetic resonance imaging (MRI) in patients with otologic implants.

Area of Science:

  • Otolaryngology
  • Radiology
  • Biomedical Engineering

Background:

  • Advancements in MRI technology increase magnet strength.
  • The number and types of otologic prostheses (ear implants) are growing.
  • Potential safety concerns arise from the interaction between MRI scanners and otologic prostheses.

Purpose of the Study:

  • To review safety issues associated with MRI scans in patients with otologic prostheses.
  • To examine the conclusions of 33 studies on this topic.

Main Methods:

  • Systematic review of 33 referenced studies.
  • Analysis of interactions between various otologic prostheses and MRI scanners of differing magnet strengths.

Main Results:

Related Experiment Videos

  • Significant variability exists in how otologic implants interact with MRI scanners.
  • Implant-scanner interactions depend on specific prosthesis type and MRI magnet strength.
  • The reviewed studies propose specific recommendations for safe MRI procedures.

    • Conclusions:

    • Safe MRI scanning is achievable for patients with otologic prostheses.
    • Individualized assessment and adherence to recommendations are crucial for patient safety.