title: Magnetic field interactions of copper-containing intrauterine devices in 3.0-Tesla magnetic resonance imaging: in vivo study.
abstract: OBJECTIVE
  An ex vivo study found a copper-containing intrauterine device (IUD) to be safe for women undergoing an MRI examination at a 3.0-T field. No significant artifacts caused by the metallic implant were detected. However, there are still no in vivo data about these concerns. The aim of this study was to evaluate 3.0-T magnetic field interactions of copper-containing IUDs in vivo.
  
  
  METHODS
  Magnetic field interactions and potential adverse events were evaluated in 33 women using a questionnaire-based telephone survey. Two experienced radiologists performed artifact evaluation on MR images of the pelvis.
  
  
  RESULTS
  Eighteen patients were eligible for the survey. One patient reported a dislocation of the IUD after the MR examination. All other patients had no signs of field interactions. No IUD-related artifacts were found.
  
  
  CONCLUSIONS
  MRI at 3.0-T is possible for women with copper-containing IUDs. However, consulting a gynecologist to check the correct position of the IUD and exclude complications after an MR examination is highly recommended. High-quality clinical imaging of the female pelvis can be performed without a loss in image quality.
authors.affiliation: Department of Radiology, Medical University of Vienna, Vienna 1090, Austria. vanessa.berger-kulemann@meduniwien.ac.at
authors.forename: Vanessa
authors.initials: V
authors.lastname: Berger-Kulemann
authors.forename: Henrik
authors.initials: H
authors.lastname: Einspieler
authors.forename: Nilouparak
authors.initials: N
authors.lastname: Hachemian
authors.forename: Daniela
authors.initials: D
authors.lastname: Prayer
authors.forename: Siegfried
authors.initials: S
authors.lastname: Trattnig
authors.forename: Michael
authors.initials: M
authors.lastname: Weber
authors.forename: Ahmed
authors.initials: A
authors.lastname: Ba-Ssalamah
mesh_terms: D000328:Adult; D016477:Artifacts; D003300:Copper; D005260:Female; D006358:Hot Temperature; D006801:Humans; D007435:Intrauterine Devices, Copper / Q000009:adverse effects; D060526:Magnetic Fields; D008279:Magnetic Resonance Imaging / Q000009:adverse effects / Q000379:methods*; D008875:Middle Aged; D010388:Pelvis
chemical_list: D003300:Copper
keywords: 3.0T; Copper; Intrauterine device; Magnetic resonance; Safety