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1·27 days agoit can’t be that hard to have an automated lock on the door.
No, but human factors dictate: it can be that hard to use the lock properly.
out them further away.
Some places do this, other places don’t have a good layout to make metal detectors a practical thing for the MRI suite.
with MRI machines costing what they do, these aren’t the prices you would worry about.
Often (depending on location), the most expensive part of the MRI suite isn’t the device, but the room itself.
The machines are actually built pretty tough for the impact. I think they’re designed to resist a flying steel oxygen cylinder and just crack some plastic cover parts. One place I visited told a tale of attempting to remove the stuck O2 cylinder using a come-along and strap, but I believe they were unsuccessful and had to quench anyway to get it off.
could never calculate the price of the repair versus the value of the possibility of saving human life.
If necklace guy was being choked by his chain and quenching the magnet would have saved his life, I’m 99.99% certain that any tech I have ever spoken with would have quenched the magnet without hesitation. However, if the chain snapped his neck while dragging him across the room like being jerked in a hangman’s jig, quenching is far too late to be of help - I’m pretty sure they would push the $30K button anyway, just out of respect for the dead and to make removing him slightly more dignified, also because they’re not likely to get that steel ball off without quenching.
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.
Welcome to the freely accessible internet. I’m sure there are “private message boards” with much more rigorous vetting of their participants, if that’s what you need.
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.
It’s a super conducting electromagnet, and if you quench it instantly pieces would be flying all over the room
The kill switch is VERY expensive to press, many thousands of dollars, and even when it does an “instant” magnet quench, by the time you hear the screams it’s all over anyway, the metal has landed on the magnet. Quenching the magnet will make it let go, but it won’t unbreak the neck bones.
A - standard metal detectors probably won’t work well right at the MRI room door. Some facilities may have a longer hallway for access and putting one there, far from the actual MRI suite, would make a lot of sense (I think I visited one location that had that layout), but not all facilities are laid out in a way that that could work.
B - the nature of how a metal detector works would probably have negative impacts on MRI image quality if it is too close to the imager - even outside the shield room door.
I did a sort of tour of a couple dozen MRI facilities for a couple of years, the stronger ones all have radio-frequency shield rooms complete with metal / gasketed doors that are supposed to be closed during imaging. Actual practice regarding keeping those doors closed was pretty loose in the places / times I was visiting. And, in the article’s case it sounds like imaging wasn’t in progress so the door was probably standing open…
The major failure in this case was lack of education / restraint of the husband. Before he got within 25 feet of the MRI room door, he should have had “the talk” about metal objects and MRIs not mixing, deadly consequences, etc. Other things could have helped, but I suspect the local safety procedures are patient focused and hubby didn’t get properly educated before entering the danger zone.
They have extensive screening and education and safeguard procedures, for the patients. I’m guessing hubby skipped (probably wasn’t even offered) all those and just dashed in the door when called. Tech still should have put hubby through “the talk” if he was anywhere close to the door to the room.
MRI is one of the most sci-fi come to life technologies most people are likely to encounter in their lives. Superconducting magnets are about as non-intuitive as it gets, once they get you past the point of your ability to resist the force, there’s no recovery - you’re going faster and faster until the metal hits the housing. There have been multiple accidents with steel oxygen cylinders - for the obvious reason: they’re so common in the environment where MRIs are used, and it’s no small feat to get the cylinder removed.
Now you make me question whether it’s a future deportation destination…
It’s a farmed turkey, it’s mostly white meat.
Photo made with AI, and that’s not Alligator Intelligence.
Noem is no dumbass, but she plays a convincing one on TV.
Grafts and extorts?
Don’t call it a special tax, call it an incentive for industries which pay fair living wages for employees. Everybody pays the same tax rate, but if you employ people the cost of employing those people can be partially rebated to your business (from the taxes it pays.)
You’ve never been in Minneapolis in February? Phoenix in August?
That’s a placeholder, meaningless, price.
It’s not about logic, or compassion, it’s about JUSTICE - aka revenge, sending a message, setting an example, etc. etc.
While I don’t agree with it, that’s what a LOT of Tennessee voters want.