| Archwire (Stainless Steel) |
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| Airway stents or tracheostomy |
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| Artificial limb |
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| Brackets Dental (Stainless steel) |
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| Bone Fusion (Spinal) Stimulator |
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| Bone Growth Stimulator |
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| Breast Tissue Expanders |
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| Catheters with metallic components (Swan-Ganz catheter) |
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| Cerebral artery aneurysm clips |
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| Cochlear Implants |
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| Color Contact Lenses (Circle Contact Lenses or Big Eye Contact Lenses) |
It may contain iron oxide and other metals, which means their use during magnetic resonance imaging (MRI) is a potential hazard. |
| Corneal Implants (Boston Kerato-prosthesis) |
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| Coronary and peripheral artery stents |
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| Crowns (Dental) stainless steel or cobalt-chrome |
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| Dental Implants (Ferromagnetic) |
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| Dental and Maxillofacial Implants containing magnets |
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| Diabetic Subjects |
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| Drug infusion pumps (insulin delivery, analgesic drugs, or chemotherapy pumps) |
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| Electronic Retinal Implants |
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| Feeding Tubes |
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| Foley catheter with a temperature probe |
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| Gastric Reflux Device |
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| Halo vests |
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| Harrington rods |
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| Hearing aid |
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| Implantable cardioverter defibrillators (ICDs) |
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| Implantable Drug Infusion Pumps |
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| Implantable neurostimulation systems |
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| Implantable Pediatric Sternum Device |
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| Insulin Pumps |
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| Internal pacing wires |
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| Intra-Cranial Vascular Clips |
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| IUDs (unknown models) |
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| Lashes |
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| Loop Recorders |
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| Magnetic dental implants |
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| Mascara |
Remove it because such cosmetics often contain iron oxides that create a local artifact and may even result in eye irritation during MR imaging |
| Metal implants (iron-based) |
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| Metallic Foreign Body in the Eye |
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| Metallic fragments such as bullets, shotgun pellets, and metal shrapnel |
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| Metallic Tattoos |
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| Neuro-Stimulation Systems |
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| Ocular prosthesis |
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| Pacemakers (CIED) |
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| Penile prosthesis |
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| Powered hair dye |
May contain metallic particles (like Bigen). |
| Pregnant/possibly pregnant |
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| Programmable shunts |
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| Prosthesis (any type of limb, eye, penile) |
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| Prosthetic Heart Valves |
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| Retinal tacks |
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| Shrapnel |
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| Shunt (Spinal or Brain) |
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| Spinal cord stimulators (SCS) |
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| Surgical clips or wire sutures |
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| Temporary Transvenous Pacing Leads |
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| Tissue expander |
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| Triggerfish Contact Lens |
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| Ventricular Catheters |
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| Wig |
Many wigs contain metal, so must be removed for scans |
