What Makes The Different Sounds In MRI Scans? Knocking to Rhythmic Chirping MRI Sounds Explained

Рет қаралды 733,037

Жыл бұрын

Why does an MRI make different noises? This video takes a rare look inside MRI scanners to show you what actually makes the different sounds during MRI scans. The sounds in MRI are produced by only 3 components in the MRI scan room: The coldhead, RF coil and gradient coil. Topics include chirping sound in MRI, what makes MRI scans so loud, why does an MRI make a loud knocking noise and more. Join us as we demystify MRI scan sounds. Thank you for watching!
Revision note: In this video, we used the term "sublimation" around timestamp 0:50 to describe the process of boil-off of liquid helium in MRI machines. However, it's important to clarify that a more accurate term for this phenomenon would be "expansion." Liquid helium doesn't undergo sublimation when transitioning to its gaseous state in this context. This correction ensures a more precise understanding of the process. Thank you to our community members for drawing attention to this correction.
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Пікірлер: 489

@MRIPETCTSupportEngineer Жыл бұрын

I hope this video was helpful! Listen to the sounds of an MRI scan filmed inside the scan room here: kzfaq.info/get/bejne/iq-jpbKluLm5gY0.html Why Is Metal Not Allowed In MRI Scan Rooms? Click here to watch: kzfaq.info/get/bejne/q81jmJyImq6Umn0.html What Is MRI and How Does It Work?: kzfaq.info/get/bejne/Z5-hqJmEvtezhJc.html

@Jared7873 8 ай бұрын

3:07 Why aren't the fiberglass mountings designed so the gradient coils don't knock against them?

@benjaminwolfe2309 3 ай бұрын

Sorry, maybe that explanation would work for scientists and electrical engineers; but for us common lowlife slobs with other Masters degrees, that did not make any sense at all. Any way you can make a video without using technical jargon? Also, animation showing movement of internal parts as they make those sounds would be most helpful. Don't slow the sounds. We've all had to have MRIs at one point or another, so the sounds are very familiar. I've always wondered what makes the different sounds, and unfortunately after your video, I STILL DO!!!

@garman1966 2 ай бұрын

I could fall asleep listening to that video of the sounds inside an MRI.

@BarneySaysHi 9 ай бұрын

Having been in a MRI in 2015, I can say that, even with the proper hearing protection on, these things are loud.

@HelloKittyFanMan 9 ай бұрын

Of course, because how much hearing protection you have on while going through it doesn't affect how much sound output they have.

@cascade5682 9 ай бұрын

I used non-ferric headphones and cranked up the music.

@nemo227 8 ай бұрын

I had my my brain scanned (yes, presence of brain confirmed😇) about the same year. They said it would be loud but it turned out to not be bothersome.

@ajdziaj 8 ай бұрын

It depends on the strength of primary field. I had a head scan in 0.3T open scanner and while it was loud, I did easily it without hearing protection (it was available for patients). It didn't deafen me afterwards, even temporarily.

@nemo227 8 ай бұрын

@@ajdziaj Important point. All scans are not the same.

@EduardQualls 8 ай бұрын

The best thing about MRI, CT and such imaging scanners is that almost no person must now hear the dreaded phrase "exploratory surgery."

@beck7610 11 ай бұрын

I've had 3 in my life, and every time i walk in and hear the coldhead pumping im like "damn, that's a sick beat!" Humor gets me through basically everything tbh

@sheilaolfieway1885 8 ай бұрын

and I thought i was the only one who thought it was a rock band.

@tubeyoujacob 8 ай бұрын

Just had one this morning and honestly I spent the 15 mins vibing and mixing the coldhead sound in my head 🤣

@simonmitchell9910 7 ай бұрын

Yeah I close my eyes and start thinking of good trance choons....soon passes by.

@TheBigDavid 5 ай бұрын

Same, I always think it sounds like a Daft Punk B track haha!

@angiebuco5189 5 ай бұрын

I tried to get one done on Tues and 6 months ago ..no deal. Why is the noise so loud

@diegoalberto1071 9 ай бұрын

Guys every time you get an MRI please make sure your ear protection is put on right, if you're mid-scan and you realize the sound is getting too loud( it is) stop the scan, and put them on right. Don't feel pressured by the technician or the machine, stop the scan, they should give you an emergency button to hold onto... press it! I was to scared to stop the machine and it only got louder and louder, my right ear was rigging and i got temporary damage, do not be afraid to stop the scan.

@LoneRanger100 9 ай бұрын

I wish I’d known that, my useles plug fell out. And they forgot the music having asked what I’d like to distract me…

@lcxb8575 9 ай бұрын

I had an MRI and they never offered any hearing protection. And my insurance company decided to deny the MRI charge. I'll never go inside one again.

@dickbutt7854 9 ай бұрын

I was given the option to listen to music through one of those cheap over-the-ears foam headsets. I declined the music. Wasn't offered hearing protection. Permanent damage. Wish I had known how loud it would be

@tchevrier 8 ай бұрын

I've never had a problem with the ear plugs, but I did feel like I was going to throw up when the contrast started. I was seriously considering hitting the button.

@NancyGonzalez-et2sb 8 ай бұрын

Had 2 done.ok but loud ask for advanced mri

@mehranmoradi4608 Жыл бұрын

Respect great engineers that life wouldn't be possible without them.

@randygreen007 9 ай бұрын

*a better quality of…

@JustinCrediblename 9 ай бұрын

@@randygreen007 sometimes it legitimately saves lives though...I suspect

@EoinFurbank 8 ай бұрын

How did you get to engineering first?

@qpr543 8 ай бұрын

Physicists enter before engineers in this. Watch 'Big bang theory' always 😂😂

@shangsty 8 ай бұрын

nah programmers try to come up with something that was engineered without the use of some form of computer or just anything engineered that doesn’t include some form of computer in the design

@Kitteh.B Жыл бұрын

It's almost 2am and I can't sleep because I'm too fascinated with learning about MRI machines. I dunno how to feel about that but thank you for providing the info nonetheless lol

@peshisparkles1582 Жыл бұрын

Hyperfixation vibes

@Kitteh.B Жыл бұрын

@@peshisparkles1582 m o o d

@jasonsignor7237 Жыл бұрын

lol same. 2:15 am here

@isasametturkmen Жыл бұрын

Lol

@Munthebun 9 ай бұрын

Yep, that's why I'm here too

@michaelschweizer4772 9 ай бұрын

It's the sound of a large pump pulling money out of your bank account to pay the bill when done.

@Lorre982 2 ай бұрын

I have genetic desease , to keep monotorized and under controll i take 1 mri each two years for free (yes i live in EU).

@crusiboi 2 ай бұрын

That’s cause you’re living in a sick country

@macky4074 16 күн бұрын

Had my free one this morning, full spine and pelvis (U.K)

@413smr 9 ай бұрын

The first brain MRI I had, in 2008, was completely closed; it was like being in a space capsule. I had no idea what to expect. I'd describe that noise as the Pile Driver from hell.

@berniewhite3053 9 ай бұрын

Absolutely agreed with my GP's description of having a brain MRI: "Like being buried in a coffin on a building site." As someone with high anxiety which causes claustrophobia, I could only get two thirds of the way through, even with Valium on board. I don't think I could ever do it again, unless it was a much more open tube.

@3200GTX 9 ай бұрын

I've always fallen asleep in MRIs. The sounds aren't uncomfortably loud, really. They're rhythmic and hypnotic. Nothing to be afraid of.

@AD-rp8ub 9 ай бұрын

I was a about to have a panic attack. I didnt realize i was claustrophobic

@paullelys161 8 ай бұрын

First time I was in one, for about 30 seconds, the electrically? operated bed couldn't get me out as I was jammed in the tube. Due to claustrophobia they had to put me to sleep for the actual scan and30 years later I still remember waking up half way through it. Not a pleasant experience for me but I remember the banging.

@sheilaolfieway1885 8 ай бұрын

I always thought of it as a heavy metal rock band.

@rakshakgr8746 9 ай бұрын

Respect for great engineers..who have built this MRI machine..

@dfirth224 9 ай бұрын

The idea for the MRI, like cell phones, came from the Star Trek TV program back in the 1960s.

@Engineer9736 8 ай бұрын

And the other MRI machines across the globe?

@saffloweroyl3663 8 ай бұрын

Call me crazy, but the sound experience of an MRI is so soothing.

@nemo227 7 ай бұрын

I won't call you crazy for that reason but that naked sky diving at midnight has got to stop. It would be okay if you weren't doing it above the Catholic girls school but c'mon . . . 😉

@jassenjj 7 ай бұрын

You're not alone... I actually find it therapeutic.

@katbatson 6 ай бұрын

@@jassenjj had my first one today and i fell asleep. I was snoring and had dreams that someone was knocking on my door. 🤣

@lisayeary4256 6 ай бұрын

🎉 yes

@Hummingbirds2023 5 ай бұрын

Crazy

@INeatFreak Жыл бұрын

Just had one today and was surprised by the pumping sounds, had no idea it was pumping liquid helium 🤯

@Ang417 Жыл бұрын

Me too

@VarionJimmy Жыл бұрын

I had one today too. The brain in my case. The sound at 3:13 was sooo load and sounded very strange in my head.

@alexandrakl 11 ай бұрын

Same - I had one today and here I am to figure out what all the noises were!

@johntyler4222 5 ай бұрын

@@Ang417Liquid helium only exists within the magnet housing, it is never pumped. Helium gas is used as a refrigerant by the coldhead. It cools the shields within the housing and reduces liquid helium boiloff. The coldhead cannot turn helium gas into liquid, it just cools the housing, usually in at least 2 stages. Toshiba systems are much quieter due to the fact that the gradient coils are in a vacuum.

@kaisla_onerva Жыл бұрын

Just today had my mri scan, the noices were crazy but looking back kinda cool and super loud!! But i got to watch a movie and we just got a call that my brain is healty and yheres no tumours (just migraine) so im happy! The banging and beeping inside the machine were kinda scary tho 😂

@BillMSmith 7 ай бұрын

I had my first MRI many years ago when they were quite novel. As a farm boy I immediately recognized the sound as being a New Holland hay baler. Of course I also appreciated the idea of adaptive reuse of existing tech. Several years later I had another, and realized they had upgraded to a newer machine from John Deere. Of course tech progresses. My latest, just a couple of years ago, sounded like they had left the farm altogether and moved on to something that probably came from an automated brake drum grinding machine.

@TheGramophoneGirl 9 ай бұрын

They can be scary at first but you get used to them. My first one I was really frightened at all the noise, but by the time I had a 5th one earlier this year I actually fell asleep in it lol

@sheilaolfieway1885 8 ай бұрын

for anyone who is scared of them i'd say think of it as listening to a rock band.

@JustSayN2O 9 ай бұрын

00:55 Note: sublimation refers to a solid transforming directly into a gas, skipping the liquid phase, for example dry ice. A liquid transforming into a gas, such as helium in this instance, is referred to as boiling or evaporation (if this phase transformation occurs at a temperature below the boiling point, as we commonly see when a little water splashes on the countertop next to your sink). Great explanation of the racket produced by an MRI.

@luticia 12 күн бұрын

I love MRI scanner. Can’t explain that but as soon as I hear their sounds, I feel connected with them. Specially with the breathing sound of the coldhead. I love laying inside a MRI scanner. It feels so cozy. I can totally relax there. Actually more than in my bed. That all is so very strange 🤔🤔🫣

@megansland8920 Жыл бұрын

here for this! I love the noises it makes, I am that rare one that is obsessed with it lmao

@Danielle_Renee1121 Жыл бұрын

I have Multiple Sclerosis and have to get them a couple of time a year. I am the same way! I find the noises to be relaxing.

@N0N4M30 Жыл бұрын

@@Danielle_Renee1121 I suffer from EDS and hyperacusis and I unfortunately have to get MRIS on a reg it’s horrible for me even with double ear protection 😢

@grangrampa832 Жыл бұрын

I love the sounds too I actually feel so relaxed when I’m getting one

@pru3206 Жыл бұрын

i have fallen asleep in every mri i've had done. that rhythmic pulsing is just so soothing haha

@MihalisNavara 9 ай бұрын

During MRI, you have to stay still and not breath deeply. The more I tried not to laugh, the more I was about to ROFL. All the noises of the scanner reminded of ship engine room machinery. Diesel generator, starting air compressor, etc...

@user-vp1sc7tt4m 9 ай бұрын

I recall having my first and only MRI scan sometime in the early1990's in Pennsylvania. I recall the bang, bang, bang noise while the scan was ongoing but don't recall it being very loud with hearing protection on. I assume the MRI magnetic field power has increased since then.

@drinny26 6 ай бұрын

I love the sounds of an mri. With the blindfold on, the noise and me relaxing i feel like im traveling though some worm hole in space. 😂

@KryptoKn8 5 ай бұрын

What i find most fascinating about MRI's is that they dont pull themselved apart. I mean they produce eddycurrents strong enough to fling a chair through the room, yet the delicate electronics inside stay unharmed. I mean I'm certain they dont use non-magnetic wires and such, so that it doesnt literally eat itself is miraculous to me

@sniffing_sunsettia 8 ай бұрын

I'm glad I'm only watching this after the amazing MRI experience 💀45 minutes is hell trust me

@kiwiboy4458 Жыл бұрын

thanks for uploading this ! really informative

@MRIPETCTSupportEngineer Жыл бұрын

Glad it was helpful!

@Laineyschatz348 Жыл бұрын

This really helped me calm down before my mri. Thanks

@thursdaygurl Жыл бұрын

I remember absolutely JAMMING to the sounds when I first walked in to the mri room

@mikeschulte4271 Жыл бұрын

So different amounts of electricity flowing through the coils makes different noises? This vid was so interesting

@DeputatKaktus Жыл бұрын

When I had my first MRI, the sounds would have made for a nice and groovy industrial/techno beat. I was vibing in there and almost disappointed when it was over. 😅

@robotrabbit5712 2 ай бұрын

Yes! I wish they'd give us a little beat machine to play with.

@broodplank 3 ай бұрын

MRI is truly a speedcore/extratone/splittercore/flashcore generator. amazing technology.

@jeanjacques9980 2 ай бұрын

I’ve had a couple MRI scans and fell asleep in the scanner. Thank you for the explanation.

@jon-kl9mk Жыл бұрын

I like to imagine that i'm inside a techno concert with all those sounds going off around me :)

@robotrabbit5712 2 ай бұрын

The lovely techs at "my" hospital have installed color LED lights in the MRI room 🎉 it's no Prodigy but I appreciate the gesture.

@iannickCZ 23 күн бұрын

Exactly my thoughts.

@kristinarnandkatiebug6413 6 ай бұрын

It just gives me chills just hearing the sounds

@tjr4459 9 ай бұрын

Because of major surgery I had several years ago I need check ups every other year that requires an MRI scan. On every occasion I’m always amazed at this magnificent machine.

@emrilbennett8704 3 ай бұрын

They’re pretty cool, even though I hate being in them, they are really cool piece of technology!

@sometimes2103 Жыл бұрын

I came to this video to hear what spunds will i jear inside MR and how loud will they be. Great explanation. I just wish there were more actual sounds

@Cioara8 Жыл бұрын

Today was my 3rd after a looong time. Now I know that "breathing" sound comes from the coldhead. It definitely helped me with keeping my own breathing even. :) I felt so safe in the machine, and I loved its sounds. Be it sick or not, lol. I hope there is a 'full version' to listen to here on yt. (I'm not high or anything)

@IntiNikelaos Жыл бұрын

You are not alone. Being inside an MRI machine was one of the best experiences of my life

@clumsycolours1677 Жыл бұрын

MRIs aren’t scary to me anymore but I always leave with a headache 😂

@kaisla_onerva Жыл бұрын

Same! I had my mri scan today because i suffer from severe migraines. I had the scan to make sure i dont have tumours in my brain. Before the scan, i took medicine so my migraine kinda went away for a while. After the scan it was back and i didn't know why. Glad to hear it happened to others too, so im not the only one😂❤

@Ang417 Жыл бұрын

My head was hurting to lol I just did my scan

@amom2go101 8 ай бұрын

I'm thankful for the technology I just wish somebody would have mentioned the intense noise that you have to get through for 45 minutes. If you are someone that is sensory sensitive please let them know ahead of time

@GS-hg9cl 6 ай бұрын

Danke für die Erklärung.

@diegopeixoto11 7 ай бұрын

Great video. Just a side note: The human ear can hear frequencies between 20Hz and 20kHz. RF used in MRIs are in the MHz range, so the RF is not audible. The noise we hear during scan are only from Gradient Coil vibration and the coldhead. MRI RF is not audible.

@chopperking1967 6 ай бұрын

Excellent! Thanks for this information!

@Bushman53207 8 ай бұрын

I delivery these along with other imaging systems for a living to hospitals and clinics, CT, X-RAY, AMX & Mammo units along with MRI. Neat stuff.

@imgadgetmanjim 8 ай бұрын

I had one today and I meant to watch this yesterday. Per tech I needed it. Thank you for the information.

@Mosscatski 9 ай бұрын

I think they are funny sounding. It's hard for me not to laugh at all that racket! Thanks for the informative, entertaining video!

@LizHellsing 4 ай бұрын

I am getting an MRI tomorrow and I was curious, thanks!

@paulw4259 3 ай бұрын

Thank you. That was a really good, to the point explanatory video. I was lucky, I liked the noise in the MRI and it helped distract me from my claustrophobia.

@danielpapoti3530 7 ай бұрын

Great video! Except the information regarding the RF coil, which is wrong. RF coils doesn’t make sounds at all in the scanner. Their frequency are in the MHz range, way above the human audible frequencies. So the gradient coil is the one that produces loud sounds, in the rage of kHz (human audible sounds)

@kuba4ful 9 ай бұрын

I'm kinda surprised I managed to sleep through my MRI scan. I had a messed up sleep schedule where I went to sleep at around 6-7AM and woke up midday. The scan was at 9AM. That day I just didn't go to sleep at all, and after the whole sleepless night managed to fall asleep 3 times during the 51 minutes long scan. To me it felt like barely 5 minutes passed lmao. I do still remember those noises though, so it must have ingrained itself in my memory quite vividly.

@macky4074 16 күн бұрын

Had one this morning and it was just like being at work. Sleeping in a bunk in my truck with a 2 stroke diesal refrigerator running 3 feet from my head. I felt right at home 😂

@nikolaiiscoolguyproduction4807 Жыл бұрын

Are there different cooling techniques for the cold head? I had an MRI recently and I didn't hear a number of these sounds, whereas I did with one I had ages ago.

@cheapskateaquatics7103 Жыл бұрын

Depends on the machine and what kind of scan you got.

@NESig 8 ай бұрын

Some manufacturers enclose the gradient coils in a vacuum chamber, which greatly reduces the noise they create during a scan. But this comes at a price as the coils can't be cooled as easily. Gradient coils are liquid cooled due to the immense amount of heat they generate during a scan. Old, old MRI magnets, and I mean OLD now, used a separate jacket of liquid nitrogen to insulate the helium vessel to reduce the amount of helium boil off. This necessitated a weekly fill of nitrogen to replenish it. The helium liquid would usually need to be filled approx every 3 weeks. This was in the days before the cold head technology came along. Naturally, those old magnets would not exhibit the pumping noise of a cold head because there wasn't one. Magnets with cold heads theoretically never need to be refilled as the helium boil off was constantly recycled back into the cryo vessel. HUGE amounts of cooling water is needed though to keep the cyro compressor happy otherwise it overheats and shuts down. When that happens helium boil off rates go through the roof. And that stuff ain't cheap.

@eli55121 Жыл бұрын

nice video! thanks for uploading! I'd love to know from where an mri gets its electricity if it has no apparent plug

@MRIPETCTSupportEngineer Жыл бұрын

Great question! That would make a great video topic. The cables and plugs are hidden behind the covers. They are routed behind the MRI scanner to stay hidden during scan operations. Power and data cables connect to the equipment room via a specialized RF-shielded penetration panel. The primary magnetic field coils get their power during a magnet ramp up procedure. The high amperage current is sealed inside the magnet to produce a "permanent" magnet that is always on. That is an amazing procedure to see. I will have to shoot a video of the process during the next magnet ramp. Thank you for the question!

@eli55121 Жыл бұрын

@@MRIPETCTSupportEngineer it’s because during the GE Signa Hero unveiling, i noticed the display went on during the presentation

@MRIPETCTSupportEngineer Жыл бұрын

Wow I hadn’t seen that video. GE definitely makes a great MRI. Thank you!

@eli55121 Жыл бұрын

@@MRIPETCTSupportEngineer kzfaq.info/get/bejne/eJagddmTzJjGZp8.html

@delph2000 Жыл бұрын

@@MRIPETCTSupportEngineer Yes please to a video of the magnet ramp up!

@robertdurn2320 8 ай бұрын

The one I had on my lower back wasn't as loud as I was told it would be but I wish I could have had a choice of music on the phones, 20 minutes of rap music arrrgh! Helpful explanation. Thanks

@abcde_fz 6 ай бұрын

. _ABSOLUTELY_ ONE OF THE _TOP_ EDUCATIONAL VIDEOS _EVER_ SUGGESTED TO ME BY THE YT 'ALGORITHM'!!! I'VE WONDERED FOR MAYBE 40 _YEARS_ WHY THE HELL THESE THINGS ARE SOOO DAMN NOISY!!! _THANX_ _FOLKS!!!_ 🙂 🙂 🙂 🙂

@HDJess 9 ай бұрын

I've had one recently and it was incredibly quiet, compared to what I remember from many years ago. It was so relaxing, I almost fell asleep during those 40 minutes. There was a distinct part of the scan that drew my attention though, when the entire machine started shaking around twice a second. It sounded like a really big element in the machine is moving around rapidly back and forth or something. Any idea what that is?

@JamesReedy 8 ай бұрын

It’d be a lot more zen if I wasn’t being told to hold my breath over and over again. Last MRI I had was about 1.5 hours in the bore. Every itch comes out to torture you, arm is always sitting funny and starts to hurt, need to piss etc but thru it all I’m still as a mummy because I want the best possible result.

@JamesReedy 8 ай бұрын

As for the shaking, prob a specific pattern of drive to the gradient coils. You’ve got 1-3 Tesla (1000-3000 gauss) electro magnet with these gradient field coils they drive that basically wobble the magnetic field of the electromagnet to make the hydrogen nuclei in the cells of your body spin this way or that and it takes a tremendous amount of current. The coils are well bonded to the housing but the forces are tremendous so they move around. The force is proportional to the magnitude of the current, the dimensions of the loop, and the intensity of the field.

@omniac. 8 ай бұрын

literally just had an MRI scan done about 3 hours ago and it was exactly the same for me as what you described. Except that I was lying on my front so it wasn't that relaxing. But it was mostly quiet (relatively) except for a section at around the middle of the scan when it made very loud clicking / banging sounds, and it also started shaking and vibrating. Pretty interesting nonetheless

@sven-erikviira1872 7 ай бұрын

I have been head first in couple of these and always wondered why the trance party. Not saing that it is wrong, just wondering why. It is impressive that in 3 minutes and 34 seconds I got answers to all the questions that made me wonder!

@pillepolle3122 7 ай бұрын

I found the MRI noises quite relaxing and one time i fell asleep in an MRI ! I would love to have an MRI at home just to relax in it.

@WalkingDday 2 ай бұрын

I had one some years ago. One of the most stress inducing procedures I bad. At the time I was coughing regularly. Knowing I could sit up or turn if I coughed made it worse.

@hlm1972 6 ай бұрын

I get yearly scans. Its a great time for me to listen to music and to get a nap taken!

@qwincyq6412 Жыл бұрын

I’ve had several mri of my head. The best way to describe it is, even with the headphones on, it’s like having someone operate a jackhammer in your brain.

@danni1993 8 ай бұрын

That just made me more scared of MRI machines...I never knew that.😱

@cobbler40 2 ай бұрын

I had a head scan for tinnitus it was the most frightening thing I have ever done. The banging noise a claustrophobia were unbelievable. Nobody told me what would happen but the ear plugs were ominous.

@markh.6687 2 ай бұрын

Thanks for the video; now I know what I heard....before I fell asleep in a running MRI during a scan. When the radiologist called on the intercom to check on me (I was ill at the time), I didn't answer! Two more calls on the 'comm later and I startled awake, not realizing I had fallen asleep during the scan. The rad tech was a little concerned, but I told him I hadn't heard his first calls on the 'comm. When we finished, he pulled me out of the MRI and said he never had someone fall asleep during a scan.

@bigsid1984 6 ай бұрын

Great video

@BeCoShooter 8 ай бұрын

The noises are so loud and varied, you think somebody's goofing on you. I laughed.

@lcxb8575 8 ай бұрын

I thought the technician was messing with me. "How long will he go in that noisy tube?" Ear plugs were never offered.

@jwillisbarrie 8 ай бұрын

Thanks for adding actual captions for the Deaf

@emrilbennett8704 3 ай бұрын

More videos to need to do that every once in a while, I’ll go into my own channel and clean up captions

@NatesRandomVideo 2 ай бұрын

I’ve had so many I have to be careful I don’t fall asleep. Snoring apparently messes up the images. Haha. 😂

@tiredoldmechanic1791 7 ай бұрын

I've had several MRI scans. It sounds like being close to a running large diesel engine. The first one I had, the technicians were still being trained so the scans were rather lengthy. I fell asleep during one of them and moved when I woke up so it had to be redone. I was in the machine for almost an hour. The last scan I had was for a shoulder problem and lasted under 10 minutes.

@SPARTAN_Cayde-26 Жыл бұрын

Damn MRi systems are actually super loud!

@INeatFreak Жыл бұрын

It's even louder than what's shown in this video.

@ronblack7870 7 ай бұрын

your description doesn't do it justice. it's incredibly loud and sounds like being inside some alien reactor or something. i had my hand scanned for 20 minutes . it was very painful as they put my hand in a clamp that caused me great pain in the exact area that i was having the scan for. the noise was incredible. each scan lasted a few minutes and every one had a different sound. my earphones slipped off one ear because of the position i was in and i couldn't get them back on.

@menkiguo7805 Жыл бұрын

I got a mri scan when I was in middle school and it’s kind of cool that is why now I am taking imaging of medicine course in university.

@michaelgrey5105 3 ай бұрын

I began working in MRI with the first commercially made unit. It was a TechniCare 0.15T. back then they were called NMRI. The "N" stood for nuclear. Later on I did liquid cryogen transfers for helium and nitrogen before there were cold head technology.

@RoanNebunescu Ай бұрын

the sound of the coldhead freaked me out most, sounds like a heartbeat to me. But it's the sheer strength of the magnets that's scariest, ever since I heard that story of something being pulled into the bore and decapitating the patient inside. true or not, i've seen videos of people messing with mri's before they're decommissioned and they're scary powerful machines.

@fornana 8 ай бұрын

to say an MRI is "loud" is an understatement lol

@c.ladimore1237 8 ай бұрын

i've had an MRI a few times, and i find them oddly comfortable, even with my mild claustrophobia. i didn't know they used liquid helium the entire time; no wonder they are so expensive!

@ANDA_Edits Жыл бұрын

I actually had an brain scan that was scanned in Siemens magnetom avanto 1.5 t ngl it was so intense but after i saw this vid i realized i got instant relief

@frankgordon8829 2 ай бұрын

I have acute claustrophobia since a kid. Thank GOD the V.A. have latest equipment & the openings flare out, giving a better experience. I was unlucky enough to get into what looked like a first gen. machine. It was like being in a straw! I was told "If you get stressed or panicky, just squeeze the bulb & it will pulse air to the alarm!" As I was going in, my entire body was squeezed by the sides. I wasn't even fully in & I was pumpin' that little bulb so fast she probably thought I was having a seizure!

@byron2521 6 ай бұрын

Had one a few months ago, they have improved them. I don't remember it being particularly loud.

@kiwiboy4458 Жыл бұрын

request for next video : femur MRI sounds inside scan room

@sangregato7831 2 ай бұрын

My mom just got an MRI done a few days ago. I could hear the noises all the way out in a separate room I was waiting in. I could only imagine how loud it was for her even with the earplugs.

@funfromabove9728 6 ай бұрын

I have to regularly get MRI scans. My tech knows me and hooks me up with Tool to listen to over the headphones they supply. The chunking of the MRI kind of blends into the music.

@Hummingbirds2023 5 ай бұрын

I have had several MRI scans in my lifetime. My sincere advise is close your eyes to avoid claustrophobic reaction, and you will do find. They should tell everyone this!!!

@seascape35 2 ай бұрын

I also found closing my eyes helped with the claustrophobia.

@vironpayne3405 8 ай бұрын

In the early days the MRI technicians called the coldhead the "the heart of the tin man." If the tin man's heart stopped beating it was a major repair.

@megansland8920 Жыл бұрын

another question- is there different type of gradient coils? I know they all have XYZ but I have heard of saddle/ horse shoe shaped coils when asking about scanners to my hospital.

@MRIPETCTSupportEngineer Жыл бұрын

The gradient coils in an open MRI has a saddle/horseshoe configuration to accommodate a larger aperture. But i believe they may have been talking about the GE HNS (Head, neck, shoulder) Coil horseshoe accessory. It is shaped like a horseshoe and the patients head sits in the center of the horseshoe. The HNS coil acts like an antenna to improve return signal and helps to increase SNR. It can get confusing with so many components named coil eg. RF coil, gradient coil, brain coil, knee coil, etc. but they are all aptly named as these components contain large loops of copper wiring to help improve local signal. I hope this was helpful. Thank you for the great question!

@jameswayne3564 2 ай бұрын

Thank you. I asked a few techs and they said they had no idea 😂

@elbagrau 10 күн бұрын

Thank you engineers !

@ExpiredBanana613 6 ай бұрын

Going for one in a few days lol so preparing myself

@lecleland1 2 ай бұрын

Thank you

@mikekaraoke 7 ай бұрын

When the doughnut MRI scans came out in 1984 it was cutting edge!

@Phlorochyll 11 ай бұрын

Some people are afraid of MRIs. Here's how I think of it (and maybe this can help some others?) Every six months, I get to: -Lay in a cold room for 45-60 mins -Lay in this awesome tube that makes awesome noises -I get to wear a warm blanket and wear those awesome grippy socks And my personal experience as a pediatric patient: -I get to watch a movie with these awesome goggles -When I get contrast, they have numbing cream, so I don't even feel the needle! Honestly, this all sounds pretty awesome, yeah?

@user-bv5gv3ei2l 10 ай бұрын

In which city you did ur mri

@Phlorochyll 10 ай бұрын

@@user-bv5gv3ei2l Pittsburgh, PA. Of course, the last few items are because of my status as a pediatric patient, so it might not be the same as someone who is an adult.

@Radoslaw731 9 ай бұрын

A claustrophobic can't use a MRI

@Phlorochyll 9 ай бұрын

@@Radoslaw731 There are several options that help with it. Some doctors will prescribe valium to alleviate the stress before the procedure. Some healthcare systems provide the option of a sedated MRI. I know that in some places, there's even an option to do an upright MRI, though I don't know how well it works.

@dfirth224 9 ай бұрын

@@Radoslaw731 There are open room MRIs for people who are claustrophobic.

@sabrinadufresne729 Жыл бұрын

Trying to understand this and the sounds since I have 2 mris and one CT scan coming up in one day

@gipbwok2008 Жыл бұрын

Wow, 4° above absolute zero! That must take some serious machinery to produce!

@twistedyogert Жыл бұрын

Hopefully someday advances in superconductors would make such a system unnecessary. Even something that has superconductivity at 0°C would be a game changer as a cooling system similar to a refrigerator could be used.

@entcraft44 8 ай бұрын

You would be surprised by how simple it is. Genius, but simple. You will get 4K just by letting liquid helium evaporate at normal pressure (like you get 0°C by letting ice melt in water). To liquify the helium you need the cold head, which is mechanically very simple. (You saw it in the video. The explanation was not quite accurate though.) The people who figured it out for the first time were of course very smart. Now, getting below 4K is much more challenging...

@entcraft44 8 ай бұрын

I should add that simple in theory does not mean simple in practice. Such systems are expensive to operate and maintain. They require a lot of energy, and you have to refill expensive helium if it leaks. Also, cryogenic temperatures are generally not prolonging the life of mechanical components...

@NESig 8 ай бұрын

Performing a cryo fill on a magnet is an adventure. Everything, and I mean, everything, gets very very cold. The magnet turret frosts over, first with water vapor, then frozen air. Liquid oxygen begins to drip off of the turret and associated plumbing and fall on the floor. It bounces off of the magnet side and stings your skin. Afterward the fill, things have to be warmed back up with a heat gun, which doesn't like being in an intense magnetic field. All kinds of fun to be had.

@baneblackguard584 8 ай бұрын

only got an MRI scan done once, there was no hearing protection and the sounds weren't that loud. the knocking sound was obvious but the humming sounds were the loudest. and i don't remember hearing that pulsing compressor sound at all.

@blueninja115 8 ай бұрын

They've forgotten to give me earplug in all but one scan. I didnt even know I was supposed to get earplugs lol its fun to hear the different pulses and sweeps

@johncherry108 9 ай бұрын

I've had at least 25 MRIs over the last 13 years looking for lesions in my brain and spinal cord due to Multiple Sclerosis. The noise doesn't bother me, but the intravenous injection of contrast agents can be uncomfortable. At least when that happens I know we're nearly finished.

@kuba4ful 9 ай бұрын

To me the feeling of contrast pouring into your veins is meh, I could get used to it. What I hate the most are the aftereffects, mainly the warmness in my stomach. I have to fight myself not to vomit lol.

@thomaswilkes8603 8 ай бұрын

Same here. They terrified me at first, the confinement and seemingly violent noises. My spasticity would ramp up in there from the stress and any movement at all in the mri isn’t helpful. I’m about 5 years diagnosed and probably a dozen MRI’s done so far and I actually really enjoy being in the machine now. The sounds are like some kind of techno jazz fusion, the last two I had I almost fell asleep. All that worries me now is getting the results afterwards.

@tchevrier 8 ай бұрын

feels like I've peed myself

@emrilbennett8704 3 ай бұрын

@@kuba4ful no it’s the feeling of urinating for me. No, I don’t like that.

@emrilbennett8704 3 ай бұрын

@@tchevrier isn’t that the most uncomfortable disgusting feeling ever?

@joegroup1 6 ай бұрын

I had a MRI scan a few months back the noises didn't bother me. I was told to stay still. It's very hard to stay perfectly still for 10 minutes. After some minutes I started to count, by the end of the MRI scan I'd counted to 30 tens times. My brother suggested piping music into the headphones, but the problem with that, is if you hear some music you, especially you like, you tap you hands, fingers or feet.

@declanfarber 3 ай бұрын

I love MRI’s! Close your eyes, and it’s like riding Space Mountain again. (Some people get claustrophobic.) Anyways, they are the answer to the question, are you the same person after you’ve gone through the Transporter? :^)

@michaelisaacson9735 8 ай бұрын

How odd. I had an MRI earlier today. I spent the time in the machine trying to figure out what makes the loud knocking sounds and why they are different with each separate scan. The operations tech didn't have the slightest idea why. I said I'd look it up later on that night. Before I did any search involving anything on the subject, this video popped up in my feed. My cell was in my jacket at the bottom of a plastic bag in a locker in a different room from where I asked the question so...nope, not Big Brother listening in. And this video has never popped up before, otherwise I'd have watched it. Thank you...Internet?

@SiblingCreature 5 ай бұрын

If you have Google's location tracking switched on it probably detected that you were at a medical imaging location and used that as a factor when populating your youtube feed.

@michaelisaacson9735 5 ай бұрын

@@SiblingCreature That's a perfectly acceptable conclusion. Makes sense.

@mmickelsen 2 ай бұрын

Had my first experience last week. Since I’m moderately deaf, the sounds were not that loud but the knocking and shaking vibrations bothered me more.

@fumrious 8 ай бұрын

I always thought it was a bunch of beatniks in the machine banging on bongo drums!

@shuggiemcg1 8 ай бұрын

Is it normal to be able to feel it when the scans moves across you? I always have a weird feeling like slight internal vibrations moving through the area thats being scanned. I get 1 or 2 scans a year

@sheilaolfieway1885 8 ай бұрын

I dunno you shoud ask the techs i;ve never had that feeling but have you ever had your hair stand on end when being in an electric field?

@shuggiemcg1 8 ай бұрын

No never had that problem @@sheilaolfieway1885