What is the fine-grained topic of the following text: MRIs are not for everyone, however, so please be sure to notify your doctor if you are claustrophobic, have a pacemaker, defibrillator, aneurysm clips in your brain, a shunt with telesensor inner ear implants (cochlear), metal fragments in one or both eyes, implanted spinal cord stimulators, metal pins or other metal implants or if you’re pregnant or breastfeeding. Only return the topic.
Precautions and contraindications for MRI scans