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As use of intrauterine devices (IUDs), subdermal implants, and hysteroscopic sterilization with tubal microimplants continues to rise, the safety of magnetic resonance imaging (MRI) in women with these contraceptive devices assumes particular importance. A key concern is the possibility that the intense magnetic field might cause devices to move or become overheated. Investigators reviewed reports published between 1985 and 2010 involving MRI in women using contraceptive devices.
Four reports showed that no device movement or clinically important heating was associated with MRI and copper IUDs (note that copper is not ferromagnetic). Tubal microimplants used for hysteroscopic sterilization (Essure) contain stainless steel, nickel, and titani…