MRI explained: How does it work?

[@metalheadm4]

Just came back from an MRI totally amazed by the experience, the level of technology and infrastructure it involves. As an electronic engineer I find this machine fascinating!!

[@colinriordan685]

same

[@ethankispert1768]

Same

[@brettrwertz]

same

[@ReodorF1]

same

[@leaf3827]

Just go back today,scanned for a torn tendon, while i was in the machine i was wondering, what the hell is going on here...

[@willstanley5199]

I had my first MRI about 2 years ago, to get a look at a damaged hip. The doc asked when I saw him the next time what I had thought of it. I told, 'the sound effects alone were worth the trip!' It was fascinating how it all worked.

[@oliverlok554]

Watching this while in the waiting room for an MRI lol Quick edit: Thank you all for the support and asking into my situation. I’m feeling a lot better and after my second operation. It’s going good. I have not had any symptoms since the operation about 10 days ago and should be the last one. Love you all!

[@mariamahmed5124]

how did it go

[@oliverlok554]

@@mariamahmed5124 not too good, found a brain tumour and in the hospital recovering from the surgery to remove it. Feeling better and better but a few days left till I can get discharged. We got the results back from pathology and fortunately a low grade tumor so I’m still gonna need a few more MRI tests the next years. Thanks for asking ❤️

[@schrodingerscat1556]

Just stay strong! You can do it! I hoping that the best will happen to you. Also keep us updated, we care about your well being dear stranger.

[@jat6547]

So,,, how'd it go ??

[@oliverlok554]

@@jat6547 well let’s just say I had brain surgery with 36 stitches on my head 👀

[@imahmud]

Took my baby daughter to a MRI scan yesterday. I was fascinated to see such a large machine and wanted to know more about it and how it functions.

[@abigailoberhauser1420]

To the people watching this before an MRI: it's alot louder than you think and none of the noises have a pattern

[@TheLadyaec]

Earplugs don't help. Wasn't warned that it would be different sounds and through the full length of the MRI.

[@t-forcepro335]

@@TheLadyaec Earplugs worked for me. Just make sure to twist the tips, they go into the ear better and inflate while in, giving better protection.

[@gitabk5127]

Why do you want even to scare them by your negative comments. It isn't that scaring.

[@abigailoberhauser1420]

@@gitabk5127 that's assuming I'm serious

[@parkfever]

I’ve had so many mris I got used to it

[@cloudsdrinkwater]

Literally just back from an MRI and was fascinated by the experience. For anyone having it done, try to distract yourself by visualising or thinking of something you really enjoy. For me, with the head piece on, it reminded me of the halo from a Formula 1 car so I just visualised driving Silverstone circuit 🤣

[@curious-kat]

I’m going for a mri scan in the near future and I thank you for your advice. My brother had one earlier this year and he said that he visualized being in an ufo, I think that’s what I’ll do too. I’m grateful for these videos as I want to know what I’m getting in to. But I am scared. I’ll certainly ask for some tranquilizer!

[@sunitapangeni8276]

thanks❤

[@evelinduvalin4605]

best comment ever because same

[@iheartunibrows]

I needed to take anxiety meds because I surprisingly got claustrophobic

[@SpinUpDownUnder]

we image by detecting intrinsic signals that can be generated by the net behaviour of hydrogen nuclei. Not water as such. and when the aligned nuclear magnetic moments are disturbed by the excitation pulse we create a temporary detectable net magnetizaton rotating at a specific frequency. The spins do return rapidly to their previous alignment, but not as rapidly as the detectable signal decays away. We do not record the energy of the spins returning to their previous alignment. This is not a simple excitation and release event like we might use in a mercury vapour light etc.| so not like you say at 1:03. Coils not antennas usually. The explanations of the equipment are better. But I've never installed one in a basement :)

[@LianRodriguezTorres]

It was so loud and scary but i just started to sing in my head High School Musical songs to stay calm.

[@GYisrael]

Lol not High School Musical 😅

[@totolesslie]

Quick question: can I make an MRI exam with metal implant at the mandible (lower jaw) area that is ferromagnetic? If so, to protect that area, what is the name of protection item? Note: the exam area is not in that area but rather from head down...

[@karhukivi]

I doubt that your implant is ferromagnetic.

[@willyonuorah1303]

MRI exam is fascinating but takes longer time than just x-rays. My first experience with the noise wasn't pleasant. But if the examiner places the earpads well like my subsequent experiences, it's cool. The technology is fascinating and discovery gave a big leap to medical diagnosis especially as the process is noninvasive.

[@nadine6242]

getting my first MRI tomorrow morning, I’ve had multiple CT scans and x-rays done but this is will be my first. I’m aware it’s going to be loud but hopefully the earplugs work

[@Lucciffr]

I just got out of having my MRI and this is so fascinating The machine was also the one made by y'all It's a very nice looking machine

[@vj.joseph]

We can hear the higher magnetic fields at close quarters. Very interesting observation.

[@TheLadyaec]

The paper didn't tell me about that chest plate. I was allowed to do mine without it (bc the unmentioned face cage for my brain was trouble enough), but it would've probably blocked the unbareable knocking vibrations through my unmonitored tachy heart. I believe that combo IS dangerous. Imagine putting a hard knocking vibrating tool up to your arythmic heart for an hr (which the hospital knows from past vitals and ekgs). It's not just a sound, sounds are vibration. Especially if you're there for a neurological referral (I don't think they could see that my scolded movement was spasms and not voluntary). That and the cold triggered shaking which scared them when they pulled me out. These kinds need some protocols for certain conditions. I believe they should be able to see and hear you inside, and let you know so. A pull out between two scans must be used to not surpass 20 mins caged at a time. If vibration pausing whilst in is able, do so based on heart and breathing activity. Do a 1minute inserted comfort test for the patient to find their comfort position and determine whether they want their eyes open or closed, pull out sit up one last time, then begin. Sitting up also helps me under dental anestheic.

[@TheBeezleInc]

Doesn't really explain how the image is produced.

[@mcrchickenluvr]

Yes it does. It’s produced by the signal that the hydrogen molecules send back to the computer.

[@JoshVanTubergen]

When the hydrogen atoms in your body align with the magnetic field, radio frequency impulses cause the atoms to "resonate" (hence Magnetic Resonance Imaging, or MRI), this induces a signal that is collected by the body coils. The signal is then transformed into raw data that the computer sorts/converts into the final image via a mathematic equation called the Fourier transform. One image equals one slice, or one 2D image. The machine does this over and over for a single sequence which can be at any angle or "plane".

[@Matthew-is2co]

Great video Siemens, hope y'all catch up to Canon and GE someday

[@blakecotten3]

I (14) am having 2 MRI's this month! Excited!!

[@YinhuWang]

skip to 0:45

[@incechizen]

Just had my MRI done yesterday. I was on the machine for 3 long hours 😭 The noise was tolerable but staying still during the whole procedure wasn't. My body went numb that the nurse staff had to massage me so I could stand up after I was done. Great technology tho! The reading takes 2-3 days and I'm hoping nothing serious comes out on the result.

[@zohebmulla3670]

Colon or large intestine ulcers can be seen in MRI?

[@bathory313]

To me, it was like being at a robot rock concert where they played varying notes. Except that one robot, he played the same note over and over! The noise is not too terrible; the holding still is. Just close your eyes and breathe. In 25-ish minutes, you're done!

[@mulhatabdillahi]

😂😂😂😂we are tg. Not a robot concert 😂

[@stephenmead8183]

Went thru one today. Interesting noises. Very comfortable.

[@vishwajeet_101]

Why the radio waves are not introduced in the video which also plays crucial role while imaging process?

[@SpinUpDownUnder]

becaus we do nopt use any radio waves. We only use magnetic fields rotating ta radio frequency. Radio waves are predominantly an electrical field far field event. Nuclei dont respond to electrical field energy. Electrical fields will deposit useless energy as heat ( bad news)

[@ihsanahmed5419]

@@SpinUpDownUnder There are videos that explain MRI with radio waves. In those videos, the radio waves does the work of the deflecting field. So are there two types of machines?

[@crabmansteve6844]

It's all electromagnetism, it's all the same thing.

[@JoshVanTubergen]

​@@ihsanahmed5419There are not "two types of machines" really. They all do essentially the same thing, but MRI machines are made at different magnet strengths (usually 1.5T or 3T). In order to get the hydrogen atoms to produce a measurable signal, the atoms must 1) align with the main magnetic field and 2) resonate. For the atoms to resonate, electromagnetic waves in the radio frequency ranges are used. Hydrogen atoms have a specific frequency at which they resonate, called the Larmor Frequency, and it happens to be in the radio frequency range of the electromagnetic spectrum. For a 1T magnet, the frequencies used to create the signal is 42.58 MHz.

[@shanekawallace-graham2190]

I am to do a MRI scan for my lumbar spine. After watching this video I am a little concerned, because I have horrible migraines that are sometimes triggered by sound and light. 😔

[@katiejaneofficially]

You’ll be ok. I have migraines too and just had an MRI for a tumor in my shoulder. Wear earplugs and ask for your favorite soothing music. Thinking of you

[@GoodByeSkyHarborLive]

did you have a coil placed on you?

[@MRIMan]

Great video

[@ahmadshakereldsouky626]

Excellent job ✌️💙

[@deemah3602]

man i love mri, the sounds and the cold 😍

[@chasinggreatness6390]

Thank you siemens

[@jesse245]

I have an Mri one week from now, for my wrist I’m anxious to see how it goes I’ve never been inside any tube for that matter

[@mariamarr3993]

Nice video!!

[@VigiHunter]

Wow crazy engineering! Listening to the magnetic resonance of all those small hydrogen atoms must be one hell of a job to compute into a picture. Also quite strange that it's nice and comfy in the machine while being surrounded by almost absolute zero degree liquid 😮😅

[@ufcm33]

So MRI machines no longer rotate?🤔

[@SpinUpDownUnder]

they nevr rotated, You may be thinking of CT scanners, that have a rotating gantry of xray tubes THey rotate very fast

[@randomgirl-lj3xi]

I have these regularly for a long time (45min) you can make good electronic music from the noises and have a nap

[@Mathkhury]

Great Video Great Informations 🔴🌱❤💙

[@mr.johnzussino6217]

Great video - thanks.

[@james_karst8825]

literally the only thing I hate during my once a year routine to the hospital , watching this after an MRI I understand why they don't allow metals inside , also some of the sounds are so loud that the headphones they give you are useless , I was feeling the vibrations of the magnets in my teeth it was horrible

[@brettrwertz]

I brought my own foam ear plugs and had them in in addition to the headphones. That really helped!

[@demonikidoff4613]

I watched this video because I aw a Reddit post about a client wearing a butt plug that was advertised as 100% silicone during MRI. In fact, the core of the butt plug was ferromagnetic, leaving the client with severe injuries.

[@matantagar6733]

בוצי לוצי

[@randomgirl-lj3xi]

Thankyou for this cheerful lie

[@sirriffsalot4158]

I still don't get how the imaging actually works and happens.. I feel so dumb watching this lol

[@TheAntHar1]

The coil produces energy which creates the image. The coil is cooled to a temp of -32 degrees by Liquid nitrogen. The magnet uses the water molecules in the body to align creating an image. To prevent overheating the machine Is never switched off unless in an emergency., or breakdown. The swishing sound is the magnet rotating. am not a doctor but does this help? MRI was invented by Nikola Tesla (as in the name of the car)

[@OrionHartwick]

something so small has a bigger magnetic field than its home planet

[@willjackson6522]

Stronger, not bigger

[@0kittykruger0]

Figured I should hop on the helpful advice train since there's one I'm not seeing here already-- if you have back pain or struggle to sit still for a full hour at a time because of pain, you can ask for extra pillows to prop yourself up. DO NOT take any anti-inflammatory medications (like aspirin, alieve, ibuprofen) beforehand if they can be avoided, as they can mess with the results, especially if the reason for the MTI has anything to do with inflammation (MS, injury, etc) Deep heating rub may also be a good thing to apply ahead of time before you arrive. For the sake of other patients, though, please be mindful of the smell. :) As always, take your doctor's advice over a random YT commenter as your care staff will know more about your specific situation.

[@kellz5135]

It's not the noise for me it's how confined you are, i am very claustrophobic. I have to wear an eye mask and just try and block everything out.

[@Gamesarelife47]

Yes it very loud so dont focus on noises instead try to make a song out of it😊😊

[@Roxxstar10000]

Fascinating

[@AshfaqAhmed-cg2zk]

Anyone can tell me I am on a decision to take MRI or now did it effect you after mri

[@goldbee6150]

Lol just came back from my MRI and thought I need to find out how this thing works much like all of you

[@k.m.slattery6263]

After 10 years of treatment l recently realized my neurologist only ordered one MRI scan of my thoracic spinal cord. I have MS and l think this is not good! If there are lesions on the brain and cervical spinal cord….

[@gigachad9389]

I wonder how they even got that thing in the building

[@Drunkfistkid]

Brain computer interfaces would make MRIs almost obsolete in many areas of neurology

[@christlikes]

I didn’t actually get it 😢

[@milanvujcich]

Wait I saw the name of this youtube channel on the MRI machine I went to haha

[@JoshVanTubergen]

Yeah! Siemens is one of the big manufacturers of MRIs 👍🏻

[@xsivasri]

interesting.

[@guest54321]

0:00|0:10

[@anonanon3066]

Your MRI machines sound like electronic dance music

[@bennym3434]

People watching this. My brother had once and mom had twice and nothing identified. Stay calm and trust the Lord❣️

[@Simonjose7258]

I thought the magnets were spinning?

[@callmethecommentcountess9329]

Interesting

[@sarahmccoy1941]

How much hearing loss is involved as a result of a typical MRI scan. Muffling the noise with headphones probably does not help much.

[@fastacesus8499]

Just been for an MRI. Ear plugs and noise cancelling headphones used. I can still hear just fine 😊

[@davidf6326]

@@fastacesus8499 Eh? What? 😉

[@T4.Bacteriophage]

There is no hearing loss from an MRI. As a side note, headphones work wonders for preventing damage to hearing, whether or not you believe that.

[@Bitzy]

yeah it was super loud and my hearing took about 10 minutes to come back all the way but i doubt there’s permanent ear damage

[@ckstuckey4386]

I heard actual banging and was given no ear protection.

[@WillVR_77]

I had a VR headset and headphones with a mic*made for mri’s no magnetic attracted metal* I still heard the weird mri noises lol

[@staceya.775]

Just had an MRI on my brain today. Had one of my cervical spine before. I was a bit shocked and annoyed to discover that I’d be forced to listen to stupid McDonald’s and Swiffer wet jet ads between each song. Other than that I just daydreamed about my crush and time flew by lol

[@mxzyk6150]

I should have watched that before i went into the tube, just saying.

[@LarryMar]

"it's not dangerous" to be surrounded by liquid helium that is -450*F and will turn you into a popsicle in a nanosecond. Not to mention that any magnetic metal inside you will get ripped out like a hot knife through butter. LOL. I think I prefer old-fashioned X-Rays.

[@JoshVanTubergen]

If the Helium "leaks" it instantly evaporates into gas and it is channeled out through vents in the roof. This is called a quench. And nothing will "rip out of you", most implants today are made of materials that pose no danger while undergoing an MRI. Implanted devices like pacemakers and neurostimulators can usually be scanned too, but under strict caution and parameter limits. X-rays and CT do not image soft tissues with near as much detail as MRI.

[@halilcapraz4713]

Don't go in there

[@LeroyBrown]

Specifically this explanation seems lacking

[@gabiausten8774]

In an hour i got mine…😂

[@timmie1980]

-269😀

[@WuTangChopstick]

I can't even read the text it skips so fast stupid Siemens Healthineers.