1. An in-vivo study of the safety of copper-containing intrauterine devices in 3.0 Tesla magnetic resonance imaging
- Author
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Moy, Jeffrey, Landon, Matthew, Vigilante, John, Lehmann, Benjamin, DeChambeau, Amber, Rohlfing, Frederick, and Marks, Robert
- Subjects
Reproductive Medicine ,Biomedical and Clinical Sciences ,Women's Health ,Pain Research ,Neurosciences ,Biomedical Imaging ,Contraception/Reproduction ,Clinical Research ,Reproductive health and childbirth ,Copper IUD ,Intrauterine device ,MRI safety ,Magnetic resonance imaging ,Paragard T380A - Abstract
PurposeThe aim of this study is to prospectively evaluate whether women with copper-containing intrauterine devices (Cu-IUD), currently listed as MR conditional, can safely undergo 3.0 Tesla (3 T) magnetic resonance imaging (MRI).Methods73 women, age 18-54 years old, with a Cu-IUD who were undergoing MRI for any reason were included consecutively. Pre- and post-MRI standard pelvic ultrasound examinations were completed to determine the appropriate pre- and post-MRI positioning of the Cu-IUD. Displaced IUDs were defined by IUD crossbars not in the fundal portion of the endometrial cavity, a visualized tip in the mid or lower uterus, any part of the device located in the cervical canal or outside of the endometrial canal, a fractured device, or a non-visualized IUD. Additionally, a questionnaire was completed by participants to determine the level of pre- and post-MRI pelvic pain.ResultsThere were zero observed displaced Cu-IUDs on post-MRI pelvic ultrasounds (p = 0/70, 95% CI 0, .043). Three participants were dropped from the study due to malpositioned IUDs on pre-MRI pelvic ultrasound. Six patients reported new or worsening pelvic pain/discomfort during or after their MRI examination.ConclusionOur results suggest that performing 3 T MRI using a low SAR setting does not cause displacement of Cu-IUDs, with zero out of 70 patients demonstrating IUD displacement.
- Published
- 2024