Intrauterine devices

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Author: Mikael Häggström [notes 1]

Planning

Indications

For intrauterine devices (IUDs), indications for imaging are mainly suspected perforation or expulsion, such as painful insertion and missing strings on vaginal examination.

Choice of modality

  • Transvaginal ultrasonography is generally the initial investigation of choice.[1]
  • Projectional radiography ("X-ray") of intrauterine devices can detect the absence versus presence of an intrauterine device, which is useful when an IUD is not found on vaginal examination and ultrasonography.[1]
  • Low dose CT is indicated when specific anatomic location of the IUD is needed.
  • Normal dose CT is indicated in suspected complications such as perforation of nearby organs and/or abscess formation.[1]
  • MRI is rarely indicated, but can visualize an IUD with both 1.5-T and 3.0-T magnets.[1]

Notes

  1. For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Radlines:Authorship for details.

References

  1. 1.0 1.1 1.2 1.3 Boortz, Hillary E.; Margolis, Daniel J. A.; Ragavendra, Nagesh; Patel, Maitraya K.; Kadell, Barbara M. (2012). "Migration of Intrauterine Devices: Radiologic Findings and Implications for Patient Care ". RadioGraphics 32 (2): 335–352. doi:10.1148/rg.322115068. ISSN 0271-5333.