MRI Safety with Anal Plugs

Primary Safety Concerns

All metallic items must be removed from patients before MRI, including dental prostheses, jewelry, and clothing with zippers or buttons, as recommended by the European Journal of Nuclear Medicine and Molecular Imaging 1, 2, 3
Thermal injuries can occur from radiofrequency heating of metallic objects during scanning, even with appropriate precautions, according to Pediatrics 4

The MRI safety classification system categorizes implants and devices as "MRI unsafe", "MRI conditional", or "MRI safe", with "MRI unsafe" being an absolute contraindication, as stated by the European Journal of Nuclear Medicine and Molecular Imaging 1, 2, 3
"MRI conditional" devices require specific conditions, such as field strength limits or positioning requirements, to be met before scanning, as recommended by the European Journal of Nuclear Medicine and Molecular Imaging 1, 2, 3

A standardized checklist should be used to screen for implants, ports, catheters, metallic implants, vascular stents, coils, active implants, cardiac pacemakers, and any foreign bodies, as suggested by the European Journal of Nuclear Medicine and Molecular Imaging 1, 2, 3
Plain radiographs, such as anteroposterior and lateral views of chest, abdomen, and pelvis, should be obtained if there is any suspicion of retained foreign bodies, according to the World Journal of Emergency Surgery 5, 6
Digital examination should occur after imaging when foreign bodies are suspected, to prevent accidental injury to the examiner from sharp metallic objects, as recommended by the World Journal of Emergency Surgery 6, 7

Image artifacts from any implant can create signal voids and geometric distortions, potentially compromising diagnostic quality, as stated by the European Journal of Nuclear Medicine and Molecular Imaging 1, 2, 3
Patient discomfort during prolonged scanning may be exacerbated by retained devices, according to the European Journal of Nuclear Medicine and Molecular Imaging 1, 2, 3
Emergency access concerns, such as complications arising during scanning, can be complicated by the presence of a foreign body, as noted by Pediatrics 4