A few weeks ago I posted my layperson’s summary of why there’s even an issue with metal and MRI (click here to read that post on MRI and Metal). In this posting, I hope to explain why it’s so critical to find metals, particularly ferromagnetic metals, being carried by people or inside objects.
A very common question asked about ferromagnetic detection systems is, “will it find __________ [insert the object of your choice: pacemaker, cell phone, pocket knife, intra-orbital fragments…]?” Funny, but in the hundreds, if not thousands, of times that question has been posed to me, never once has it been, “will it find a nail I stuck in my nose 30 years ago?”
Many people just learning about MRI safety and hazards ask very similar questions. One of most frequent is, “why do I have to remove all metal before an MRI,” or it’s corollary, “can I get an MRI with some metal on (or in) me?” To answer these questions, let’s start at the very beginning… What A Very Good Place To Start… (Click Here)