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Long Island man wearing 9kg-metal necklace dies after being sucked into MRI machine
(www.independent.co.uk)
this post was submitted on 21 Jul 2025
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Not just the helium, there's a considerable time spent "recharging" the magnet with electricity - many patients will lose access to MRI scan service during the multiple days it is down for recharge.
Dont they loose the access to the machine anyway for few day? Im under impression metal slamming to the machine usually breaks it pretty good.
Well, the thing is, to kill the magnetic field within a few seconds would break the machine, so they don't do that because it would up the cost of a shutdown from tens of thousands of dollars to several hundreds of thousands of dollars, and the downtime would go from several days to potentially several months.
As it is they "quench" the superconducting electromagnet, which then requires a large amount of LH2 and electricity to get going again. I have heard numbers like $30,000 to get the magnet running again, not counting lost revenue during the many days it takes to get going.