patient problem with MRI

I found this image with the paragraph below in"Getting started in Clinical Radiology" imaging book and was really interesting ,
This patient is well prepared for his examination.He
brought a pair of pliers along to take his jewelry off .It took
him about half an hour.

I can't imagine how would be the resulting image after MRI scan or 
if that metal is highly magnetic and movable during the scan.

So before any MRI scan the Radiologist must get any history 
from the patient about any procedures the has been done before 
or previous accidents or truma because there may by any metallic particle  
that can move during the scan ( read the previous post) especially if foriegn body in eye or brain or if the patient has a cardiac pace maker.

beside danger that might happen , 
also the resultant image will contain artaifacts that prevents report to be 
accurate or even the radiologist may repeat the scan after removing the cause
Tattoos may also hinder imaging gingand heat up and depending on the ingredients . For the
same reason, eyeshadows (which often contain metal)