I am having an MRI done tomorrow for my right shoulder and I am wondering if I can get an MRI with this metal rod in my right ankle? The man who made my appointment at the MRI office said it should be no problem? Also, I wear a hair replacement system but it is made up of only a thin panty-hose-type mesh secured onto my scalp with a white glue. And can I spray my hair with my usual wet-gel product prior to the MRI? Will any of this be a problem in the MRI machine?