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From: nima53
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  • some sweet info here

  • Whoa man glad I took my jewelry off for my MRI this morning! Haha

  • That's cool video:)

  • I'm thinkin' a steel compressed gas cylinder would be fun to let into the room...:)

  • are permanent retainers magnetic?

  • i like to put steel object in my rectum is it dangerous ?

  • I have strews in my knee . 2 strews hold the ACL graft. Is it safe? Plz someone tell me?!

  • @TheCrazy243 Screws are usually titanium, or a non-magnetic alloy. As long as it's not near a soft vital organ, or in your head, screws are generally considered safe.

  • @TheCrazy243 It should be, but the MRI scanners will know more.

  • @TheCrazy243 Dude I got to steal rods in my back and,,,,15 StrewsI in my jax gotta for one of thes aug 24th on my brain!!! Think I had a brain fart and all the gas is stuck up there!! I'm fucked

  • @TheCrazy243 your screws should be very safe. Generally after a month or so after having surgery with implanted metal, it's safe to have an MRI. The exceptions to this would be if you had a pacemaker, or an aneurysm clip in your brain.

    And you'd be unlikely to have an MRI of the knee anyway. The presence of metal around the bit that is scanned causes a lot of artefact and parts of the image aren't there.

  • Let's hope someone doesn't have a metal plate in their jaw.

  • hey i have a question.....if u have fillings in ur teeth does this affect the MRI or TEETH in ANY way possible..... -_-'.....

  • @nazneenhirji786 No. Fillings aren't magnetic.

  • @nazneenhirji786 ull be missing some fillings (or teeth) after the mri is done =)

    nah im kidding dont think the fillings are from iron-metal

  • What if you were Wolverine?

  • I wouldn't like to have metal testicles..

  • @Diddleshot i have got metal testicles...u dont wanna hear my story

  • @the689anomoly i do !!!

  • My lab uses a 9.4T one.

  • So what happens if I leave my PA in when I have a scan?

  • Can anyone advise me about ARMRIT certification and the potential job obstacles I might face as an MRI tech with this type of certitification in Ca.

  • @SHOEsoSTUPID What is the ARMPIT certification?

  • It seems like boss caught you up playing with the MRI and now you're going into a big trouble.

  • You are cute.:)

  • And that is only a 1.5 Tesla scanner. Try the same with a 3T one, or a 7T pre-clinical one :D

    Might be fun. Expensive, but fun.

  • @VoltanIgor mahaha 7T is awsome, I've seen one.

  • YEA THEN PUT A FUCKING CAR IN IT U DOUCHE..... BORING VID

  • @smirko rah rah rah, i yell at people with caps on youtube!

  • this happens if you try touching chuck norris ass...

  • That guy looks pissed that you're fucking with his MRI

  • imagine if u had metel balls lol

  • @jackbubu42 yeah thats why chuck norris would have a real probleme going in there whit his balls off steal !! hahahahaha

  • This is a pup, they are working on a 30 tesla at the Berlin Neutron Scattering Center, hate to be paying for the power bill!

  • @cronnin iys a magnet, it still works when its off, if he gets close enough, it will f*** up his phone, credit card, iPod, compass, YMCA card anything pretty much, dont wear steet toe boot neaf one and lift a foot, (personal experince) you will get stuck..

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  • NO!!! He said more heavier!

  • why the fuck is that in your house

  • i like how you gave the signal to end the video at the end lol

  • MRI+Pacemaker= Bad Day

  • Please answer my question: Why do my compass respond to Earth's magnetic field, but won't budge when I'm in a hospital with an MRI? Does that imply the Earth's magnet is stronger?

  • @TheKuroky Maybe MRI doesn't have permanent magnet? Maybe it's magnetic field is produced by current, when it turns on.

  • @TheKuroky no, as he clearly says the earths field is 0.00005 T and an MRI machine is 1.5T

  • @TheKuroky the rooms where MRIs are conducted are surrounded by shielding in the walls to prevent the MRI from reacting to things outside of the room, usually there is a little computer where the results of the scan are sent and the operator can see them, if there was no shielding, the computer outside of the room would not function, among other devices in the vicinity of the MRI room

  • @Ant1matt3r Ummm, not quite. All clinical MRI's are in rooms that have radiofrequency (RF) shielding. Not all of them (in fact, a minority) have magnetic shielding (a completely separate system). The RF shield generally does nothing with respect to keeping the magnetism inside the room. This is fundamentally different than every other type of shielding used in radiology.

  • all the iron in your body goes to your head and you die

  • do you have magnets that will stick to asphalt or concrete?

  • @TheDannypro its called gravity ;)

  • Strong enough to burst your head open when you get an MRI. True story.

  • what a thick man, who the hell let him near a machine of this caliber?!

  • is this just like a cat scan?

  • flmae46, dont watch too much dr.house

  • people who get mri's who get tatoos in prison are FUCKED!!!

  • watch more mythbusters!

  • I assume teeth fillings are exempt ??

  • teeth fillings aren't ferromagnetic

  • @MarbleMagic good to know:D

  • @MarbleMagic Neither are the plates, pins and screws doctors use to mend broken bones but they still cause a big problem in MRI machines.

    The magnet in an MRI is strong enough to super heat any metal (even a 1.5T one, which is actually fairly wimpy by today's standards). The heating causes severe burns, it's nothing to do with metal being pulled out of your body, unless you're unfortunate enough to have some sort of iron in you - some bullets contain iron for example.

  • @whispersandechoes Those used today aren't, old ones might be.

    I never had problems with implants heating up, all they ever did was causing interferences in the images.

    One patient we had in our 3T machine had a piece of shrapnel stuck in his forehead, from the accident he had - this nearly erased the whole picture. Other than that, nothing happened.

    We also experience the same artifacts metal causes to appear with clothes made of synthetics. Not at 1.5T but at 3T and up.

  • @MarbleMagic Fair enough. :)

  • MORE HEAVIER

  • A bit anticlimactic lol.

  • Purpose to show strength of a MRI for the average person ??? That is why the techs screen for metal / foreign objects.....

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  • Imagine the earths magnet force was as same as the MRI. The moon would collide with Earth

  • ...would it? why would it kill you?

    i'll ask him again tommorow (well today, its 5am...) what I remember him saying is they put a dye in his blood and sent it backwards to see what muscles/ligaments we're abnormal.

    don't always trust the net you know, I said to an x-ray doctor that x-rays are gamma because of wiki and he was adamant that x-ray is its own type, and he's the doctor, not that I feel I can trust most people nowadays but you catch my drift.

  • I don't know about that but there is a big section of radiology called Nuclear Medicine where they specialize in having a person drink or inject a radioactive isotope and they they can monitor it through live xrays as it passes through the body such a blood and tissue. I don't know if they do that with MRI's though.

  • @vampov thats pretty much it, he told me -the doctors- said the "dye" flows backwards and shows any irregularitys, which is what i've been trying to say. I'm no medic but I have heard of this before, one person I know had iodine injected in small amounts for a similar test for different reasons. i'm not sure I trust the knowledge of these exams, injecting you with radioactive material is quite frankly stupid from the average persons perspective of things and imo rightly so.

  • i think ur a little confused...dyes aren't injected for MRIs, ur thinking of CT scans. also, the amount of iodine that is put into the patient's blood stream is not near enough to harm them unless, of course, they are allergic to iodine. also, chemotherapy is radioactive and it helps treat cancer, so i don't think its stupid. its quite logical, but i guess if you don't know the facts it would make you wonder

  • @pointeprincess302 Contrasting agents are frequently used in MRI's.

  • @pointeprincess302 MRIs used non-iodinated contrast if the study calls for it. Also, the contrast used in CTs can absolutely be harmful. It is absolutely contraindicated in patients taking certain drugs as well as in patients with renal failure of certain severity.

  • and your blood doesn't flow in the opposite direction. its not possible....

  • @KKinsane2009 It depends on what definition one uses - there's some overlap in terms of energy; you can't say the doc was wrong for distinguishing the two.

  • now,you have to pay for scrathes in the machine

  • "Something even more heavier" -Guh ..

  • If blood flows the other direction it would stop, pay attention to school next time..

  • if its flowing it has not stopped...

  • It stops flowing because there are valves in your vains which let the blood flow one direction but not the other that's why it would stop.

  • thats what I thought, until my mums boyfriend had been inside one and had what im describing done.

  • rofl....ummm no. your blood is not gonna flow backwards. you would die. think about your heart and just use common sense. lol

  • I say again, my mums boyfriend HAD THIS DONE, so don't tell me its not possible else what were they actually doing to him and why did they lie in the explaination thereof??? common sense doesn't exist its a metaphor for well known knowledge, and I don't think people do know much to be honest.

  • no it doesnt. look it up. that would kill you for your blood to flow in the opposite direction. no where does it say that.

    also common sense does exist, but youre right about somewhat

  • Either way, even if it was possible for blood to oppose it's natural direction, the blood would have to had to stop at one point before it would even have a chance to reverse it's flow.....

  • @IdontCheckMyEmails

    very good point :) it is possible if you think about it, blood carries iron amongst other magnetic minerals through the body so its not like it can't be done, I guess i'm probably wrong but i'm just saying what the qualified mri user told the patient in question.

    could be an awful like, saw (the films), machine if abused imo.

    also ---> I would compare the overall magnetic feild size against tesla rating ratio and see which is stronger when the feilds are matched sizes.

  • Hmmm.... interesting.

  • It does not make your blood flow backwards. They can see blood flow by using an MRI contrast agent which is injected prior, or during the examination. Also MRI images offer an incrediable amount of detail.

  • dude i fucking hate MRI scanners i have 3 pins in my right leg with 6 screws and when ever i get one it feels like something tugging on it from the inside plus they are loud as shit

  • OW!!! STOP! you are making my leg hurt thinking about that!!! LOL! I have a rod in my leg from when I snapped my shin bone in two. I need to get it out soon as it is really starting to bother me (expecially in the cold). I have not had an MRI though, not since the breaking of my leg at least. I had a CT scan but thats a whole different thing. Man now if they send me to get an MRI anytime soon Im gonna freak out! My leg bothers me enough without magnets tearing it apart from the inside! LOL!

  • so if i stay close to one of those machines and you try to shoot bullets at me i'm invincible?

  • Unfortunately, lead is not magnetic...

  • @poisonfume Even the strongest magnet in the world would have no influence on a bullet fired from a rifle or pistol.

  • But what if it attracts the bullets instead? Then, they wouldn't even have to aim to kill you :D

  • nice try, but lead bullets arent really affected by a magnetic field !

    heh :) can kill you anyway =D

  • There is a gigantic magnet in my pants that not even helium or a (coldhead) to recondense my pants can handle.

  • @ mackc6r Pray tell...where did one as yourself purchase such an enormous magnet? Me thinks Thou is telling us a falsehood, & that thou only has a tiny, small, and insignificant magnet within ones pants. Alas, the words from my mouth are strange and in an oddly ancient tone. I do believe I hath done too much LSD, and hath warped my mental capacities. I must be off now to see a gilded pimp who doth owe me indemnity from a certain commerce where one from his stable did offend me with an indignity

  • tell someone with a metal plate in thier head that its a cat scan and see what happens

  • A quick google search on MRI accidents shows what happens when someone brings an office chair too close or some patients oxygen tank. It turns into a missile and cracks the plastic shell around the MRI machine.

    MRI magnets are so powerful, they literally make every atom in your body vibrate and give off Radio Frequency waves. I really dont think its safe to expose your body to something that makes every atom in your body emit radio frequency. We will see in 20 or 50 years the long term effects.

  • The magnetic field does not make every atom in your body vibrate. It moves the magnetic field associated with the hydrogen protons. So....nothing is physically moving in your body. Your point about long-term effects may be right, but not remotely for the reasons you state.

  • ur paranoid stay inside ur room

  • ... A magnetic field cannot cause vibration or resonance, it can only force protons to line up in one of two configurations... This doesn't cause the release EMR... You need to actually input EMR at the right frequency, to make a proton flip states... Look up NMR, same principle.

    Please KNOW what you're talking about before you post something.

  • ummm but magentic bracelets heal ppl so it is probably its own cure

    learn medicine

  • that is true. to actually be able to manipulate the metal using magnetic force. the metal should have good magnetic properties and not a lot of metals have that, mostly its rare earth metals that have those properties and even then they are quite weak.

  • There's a neurovascular surgical tool that uses a pair of big electromagnets (on either side of your head) to help 'steer' a catheter through the blood vessels in your brain to deploy a stent or clip at the appropriate place.

  • ahahahha more heavier

  • I've heard of strang effects that people experiene when around such high magnetic fields. I've had an MRI, and din't notice much with it, but has anyone ever seen The Philadelphia Experiment? It was the moovie about time travel, and all of those generators were in use then. I've also heard of other effect that people have experienced in high voltage environments like this.

  • DO you know what the "pumping" noise in the background, when i had one in sunderland royal hospital's new scanner, i think it was 2 tesla, all i could hear was that when i was stepping into the machine!

  • I don't know, but I heard a lot of clunking noise in mine in 1994! Not sure of what the strength of it was, at St. Johns Hospital in Detroit. I've heard people have noticed different effects when in an MRI that I've heard about over the years on Coast to Coast AM.

  • That is the Lquid Helium Cooling System

    It cools the 1.5T Magent to almost -300 F or -400 C

  • Liquid helium recondensing, aka the coldhead, liquid helium is not actually being made colder, but when the helium tries to expand into gas the coldhead recondenses it into liquid so it does not boil off.

  • I fix MRI machines, the pumping noise is the coldhead of the magnet, basically the way that this magnet is a magnet, is by running current trough it, the current once in the magnet remains in there, in order for it not to dissipate it needs to be going trough superconductive wire with no resistance, so the wire in submerged in liquid helium, liquid helium is always trying to turn to gas and boil off, the coldhead constantly re-condenses that helium as to preserve it in the magnet = the noise

  • Shame you can remember either of the actual effects...? just that, well, there was one effect, and, erm, another one...  didn't you actually hear what the effect was exactly? just roughly? just to make it a slightly more believable read.... or perhaps just more entertaining than, I've heard of strange effect....and I've heard of other effects too....

    ?

    Nothing actually reported in the whole time MRI has been used.... so, are you sure you're not telling Mr Porky Pies?

  • Go find yourself a 3T or a 7T and try this again

  • I wonder if it would stop a bullet?

  • Since magnets attract ferromagnetic material, if you shot a FM bullet towards the magnet, the magnet might only accelerate the projectile towards the center (most powerful part) of the magnet. Are you asking would it prevent a bullet from leaving if you were already at the center and fired the gun pointing away?

    Then, of course, there's the issue that most bullets aren't significantly composed of steel or other FM materials, and there's no attractive effect on lead.

  • Interesting.

  • i have a plate in my penis and it made my penis stand straight up

  • WTF>?!

  • how'd these 2 hippies get their hands on this machine ??? Get a free MRI scan when you purchase an ultrasound on your balls................

  • I too was wondering the same damn thing lol

    TC

  • so if u have a metil filing ur fucked

  • I think tooth fillings aren't ferromagnetic, meaning they aren't attracted by magnets, so you would be safe ;-)

  • thanks 4 killing the joke

  • Sorry, I didn't realize you were joking ;-)

  • I read that its inconclusive if MRI's contribute to tumour growth. There have been NO long term studies. As the MRI field is so much stronger than the entire planets, it makes me nervous to get one. I really don't wanna know what they might find anyways. Have already made appt & cancelled. Sometimes its better to not know.

  • They don't seem to contribute to tumor growth, otherwise we would have already seen more tumors in other areas of expertise like people who work at power plants, they face magnetic fields of up to 6 times as powerful as people who work with MRI's...

  • good demonstration

  • so what will it mean for me when i get an MRI? are you saying it is super dangerous for my brain?

  • Only if your brain has iron, cobalt or nickel in it.

  • why would you have a plate in your penis?.........?

  • You also have mental retardation.

  • yep

  • If you had a plate in your dick, and it was made of anything magnetic, you'd get dismembered when they turned on the MRI.

  • Actually the scanner is always active, so it will dismember plate dick immediately.

  • if you had a plate in your penis

    which would be pointless because its merely tissue

    but hypothetically if you did

    it would physically rip out of you

    burst your dorsal artery......OUCH

  • 4 Tesla is a phenomenal magnetic field.

    Be careful, friend.

  • How big of a magnet do you have to put in an MRI before it loses superconductivity and quenches?

  • Huh? Now, if you bring too large of any ferromagnetic object (whether it's magnetized or not) too close to an MRI, it can trigger a quench because of the enormous physical forces exerted between the MRI and the ferromagnetic object. I don't know that anyone has ever quantified just how big, but there would be a number of variables involved.

  • True, it doesn't have to be magnetized

  • That guy didnt look happy you were messing with his machine.

  • Nice one.

  • He said more heavier. Must be really heaviest. LOL.

  • I caught that too haha.

    MRI's are nice though. Physics yay!

  • kjarlsn, you're kidding, right?

  • LOL more heavier !!!

  • remember that the MRI scanner does NOT have a stronger magneticfield then earth!...just so you all dont get all confused!

  • question...will this rip dental fillings out of your teeth??????

  • No, since they are not magnetic.

  • dont you think they would have thought "oh, maybe we should put a magnetic material into your fillnings so the next time you go for an mri your face will be reduced to a piece of skin"

  • 1.5T? man at work we have the 3.5T MRI models. fucking badass throwing shit into it

  • good to know tax dollars are going to pay for your stupid shenanigans you retard

  • I dont care if my tax dollars are used for ShEnAnIGaNs, everyone knows they would do this

  • 1.5T? Weak. Let's see it with a 3T.

  • Dang, I had one of those today and I had to go pee during it so I was so happy when I saw the Doctor come in and say that I was done. I ran to the nearest bathroom after! I know they are sooooo loud!

  • whats the gauss?

  • Gauss and Tesla are measures of the same thing (think centimeters and kilometers). One gauss is 1 / 10,000th of a Tesla. So, translating what the speaker said, the Earth's magnetic field is approximately 5 gauss and the maximum magnetic field strength of the MRI is 15,000 gauss.

  • another reason why hospital grade metals are all non-magnetic, such as titanium, so that it doesn't pull your arm off if you have a metal plate in your arm

  • i have to get one of my knee

  • Thanks for sharing.

  • Why the hell have an 'Alan Wrench' in an MRI room? Hmm? It's a hospital, not a autobody shop! Do you have any other things to video, like how you may not have a brain in you head? Why not use the MRI machine to find that out!

  • hows about you try and use your brain a little better pal, ever heard of an engineer? maintenance man? you know the people who keeps everything working in the hospital???

    them things aint nothin' to joke about you know, ive been caught in a situatuion where the fields werent turned off, a screw driver flew out of my pocket, thats how strong those fields are.

  • Why did you even reply to him? He's obviously a twat.

  • i try to let people know how wrong they are as often as possible lol.

  • I can actually understand that! :p

  • im sure you understand more than bugstomper...i think his name may give away his level of intelligence lol.