How does an MRI work? (HD)

Dr. Howard Hart Jr. - pioneer in MRI design describes how the MRI works. (In HD). Part of the "Wizards of Schenectady Series - Carl H. Rosner". Learn about traditional nuclear magnetic resonance imaging used in most hospitals in the world.

[fjoa]

got MRI'd today. was like being inside a gigantic electric cat purring.

[julianrayjb]

thats the most simplest explanation and much more informative

[samuraivideos]

This taught me what 3 weeks of school took me in my radiology class

[MissRachellauren]

thank you very much! unlike the people below this made alot of sense, seriously if your in college and don't understand this i'd be slightly concerned about how your teachers have been educating you.

[seggyRK]

Excellent use of the Fourier transform

[siddheshmahadik]

The old guy just gave summary for MRI...But it was okay...and easy to understand

[mikewatte]

What a clever species we are.
These machines save lives

[antondovbush]

sill confusing...i think studying all that college chemistry killed a part of my brain so now i barely understand anything ;/

[EdisonExploratorium]

We feature videos with different experts based on their area of expertise. Rick is the lighting guy.

[andrewjohnston]

This is genius and extremely constructive. So why are there 93 down votes?

[bluespike]

This isn't very helpful if you want to learn the basics. You need to know what MRI is and how it's built. In this video, you'll be shown the 'complex' science behind the magnetic field, but there is never mentioned a magnet in the first place. That's like:
Musician: "The sound of a piano is caused by vibration of strings."
Unexperienced person: "Oh, wait, a piano has strings? When did that happen?"

[johnbbrandt]

Didn't understand a word you said but well done on a marvellous machine and till the next one comes along that will be better than that .But what I'm trying to say is its a awesome machine even had 2or3 in my time! cheerio all chap

[sontaejung]

Thank you for the video.
Can i use this video for my assignment please?

[Muonium]

If you want high detail I STRONGLY recommend the channel "magritek". They have an hour long lecture with demonstrations that are really very accessible and informative.

[crobulari]

My understanding is that the magnetic fields align the protons up with the lines of force. Then maybe they use a short pulse of a few cycles of RF say 60Mhz ?. Then do they look at the induced polarisation ? I don`t know but something like this looks feasible, . What is the definition? Any good ?.

[Ryder.Draconis]

So in other words, the different parts of the body are going to react with a different amount of pull from each of the magnetic gradients.  By bouncing a radio frequency off of it, we can determine a composition and an image that will be created on the computer?  Is that right?  How big are the voxels normally?

[musicformed]

replay button for those who still are confused: 0:00

[kuljitsingh]

as name suggests. its resonance( imaging). our tissue has there own resonance frequency. when they are infected they loose there resonance. its something like if we r not standing in d q we will be easily notified. this technique is way better then x-ray imaging but PET is the best scan system developed by human race so far.

[KabukeeJo]

MRI: one of mans greatest inventions!
Facebook... not so much...

[justawafflelovingcreepypas]

How an mri works (in a nutshell) it’s a bunch of magnets and a camera screaming at you because you look weird and they’re forced to take pictures of the insides of you