How MRI Works - Part 1 - NMR Basics
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- Опубликовано: 1 июн 2024
- How MRI Works: Part 1 - NMR Basics.
First in a series on how MRI works. This video deals with NMR basis such as spin, precession, T1 and T2, TR and TE, and Boltzmann Magnetization.
Part 2 - The Spin Echo - • How MRI Works - Part 2...
Part 3 - Fourier Theory and k-Space: • How MRI Works - Part 3...
Part 4 - The Gradient Echo Sequence : • How MRI Works - Part 4...
Slides can be purchased here:
/ powerpoint-slides-how-...
0:00 - Introduction
1:22 - Nuclear Magnetic Resonance
4:10 - Inside the MRI Scanner
7:50 - The Proton, Spin, and Precession
11:34 - Signal Detection and the Larmor Equation
14:10 - Flip Angle
15:30 - Ensemble Magnetic Moment
16:34 - Free Induction Decay and T2
18:43 - T2 Weighting and TE
21:46 - Spin Density Imaging
24:18 - T1 Relaxation
25:45 - T1 Weighting and TR
27:01 - The NMR Experiment and Rotating Frame
28:57 - Excitation: the B1 field
30:14 - Measuring Longitudinal Magnetization
31:34 - The MR Contrast Equation
34:42 - Boltzmann Magnetization and Polarization
40:09 - Hyperpolarization
41:42 - Outro 
Наука
Part 2 on the Spin Echo is now up and can be viewed here: ruclips.net/video/M7yh0To6Wbs/видео.html . Enjoy!
You're just awesome
Subscribed and enabled all notifications! Thank you so much!
Please, could you share list of web pages and documents (bibliography), which you used in making this video? I'm writing Bachelor's degree work and I wrote some of information you mentioned in video, but I have to cite them :( It would be very useful for me
The return of net magnetization in the longitudinal plane does not give off a signal. This means that T1 cannot be measured directly. Please, tell, how T1 is actually measured
Sir plz make part 4 ,other remaining topics u r awesome ,u make the mri concept easier plz sir ,I need to know for my exam
Several have commented here that this is the best explanation of MRI they've encountered. I'll go further. This is perhaps the best physics lecture I've heard. And given how many excellent physics videos are here on RUclips, that's saying a lot.
Beginning, me thinking "Ooooh, 43 minutes, isn't that a bit long?". 3 hours later: still at minute 12, as I keep rewatching with normal and 1.5x speed to make sure, I get it all. GREAT explanation. My textbook has led me down, but you're getting me right back on track again :)))
😃😃😃
Yep some text books are terrible. I threw my general Chem text book in a recycling bin so no one will ever read it because there was only a tiny tiny part of a section of a chapter that covered Quantum mechanic.
Bro I’m stuck at 4mins
Same
This is outrageously good content. The visuals are so well done and so important for a good understanding.
i am no medical professional, nor am i a physician ... and yet, i managed to follow the basic explanations and now know the abstract concept about how MRIs work. That is cool.
The lecture literally saves my life! The explanation is so straightforward and easy to follow. Will recommend it to my mates. Cheers!
Before even watching this video I'm going to say the fact that it's over 40 minutes long is VERY promising. It tells me the author(s) didn't cut any corners or dumb anything down for the sake of appealing to typical RUclipsrs. That shows some real integrity, and I respect the heck out of such integrity. I can't stand it when a video claims to explain an incredibly complex subject that requires a layperson have some background knowledge in a lot of fields in 5 minutes.
I'm an MR physicist, and I'm very picky about getting the physics correct, and this video is very good! Kudos!
35:56 "Stay with me. Don't get lost just yet."
I love it..! I was already mostly lost, but had to keep watching... Such incredible content. Beautifully delivered.
I need the second part, I have an exam this week 😭😭😭😭😭
you can't abandon us like this
same bro same :'(
Which course are u pursuing
:) :))((())))))))))
Even though the lecture is long, you didn’t just upload a lengthy lecture of monotone “I know I’ve repeated this multiple times but hear me out” kind of voice, but you actually take your time to explain and make the environment fun and active. Thank you!
As an MRI Tech, I truly appreciated the ease and level of understanding that this video was placed. It’s not the easiest to explain in layman’s terms of course, but this was awesome. I’m always looking for a different way to review and improve on my skill set and I enjoyed this!
Hello from Spain. That this is the best explanation of MRI they've encountered.
SO GOOD! So many areas of foggy confusion cleared up for me. Everybody always wants a hand-waving non-descriptive explanation which just kills my need to understand every little detail. I cant thank you enough for this video.
Great Video, Thank you!
I’m waiting for part II.
Hands down the greatest MRI physics lecture I've seen so far... Keep up the good work! I'm avidly waiting for part II! - Rads Resident
I'm getting a PhD in a chem lab that uses a lot of solid state NMR, so I was familiar with T1 and T2, but not how the weighting works or how pulse angles mesh with QM. I learned a lot! I can't wait to watch part 2 in a bit. I wonder if our pulse programs are different
I’m only 8 minutes in and it has answered a bunch of questions that I always ask myself when I’m in there. Doing my entire spine was a long time to think about stuff. Thank you.
This is one of the most extensive explanations of MRI on youtube. Many thanks for the effort you've put to make this video. It's sad that there is no part 2.
part 2 and 3 is out now! the link is in the description. 🤓!
My dad worked for 15 years or so on MRIs before transferring to another company, this is such a cool explanation of how they actually work! I'm more used to the context of NMR, since I'm an analytical chemist
Thank you so much for this lecture. Probably the highest quality, clearest I've heard without oversimplifications.
It's a wonderful presentation. A melodious and clear voice. No complexity, no confusion and simple enough. Thanks a lot
Great video, you really touch on the physicals portions of MRI better than any other video I have come across.
This explanation is so clear and concise - excellent material for a resident radiologist. Please upload the second part, we're all waiting to learn more! :)
Thanks. This is the most illustrative and intuitive one video in youtube to understand MRI.
I don't really know who you are, but what I know is that I'm forever grateful to you for making this video! thank you so much!
Please meka a part 2!!! is was by far the best explanation I found on RUclips!
I really like, how you try (and succeed) to be scientifically correct but still being able to explain everything simple enough for everyone to understand. Waiting for a second part!
I haver never enjoyed MRI physic classes like this before it feels like I am watching documentary. Kudos to this channel !
I have no previous knowledge of physics whatsoever but, for various reasons, I have to study the physics behind imaging methods. Thank you very much, even with my complete ignorance I was able to follow most of your video. Your exposition was really brilliant. I hope you are a teacher!
Brilliant. Thank you so much for putting in the time and effort to make this available. Are you doing a Part2 ?
This is the best animation and teaching video I've found. Thanks for this!
one of the best explanations about MRI on youtube, thanks for sharing
The most glaring property of your video and succinct explanations is the ' lack of ' presumptions of the viewers likely ignorance which for me is most effective not to mention pure and personallt deeply appreciated. Thank you!
I dont write that much comments, but this video deserves it. I am studying medical technologys in germany and this video explained a whole subject to me. Its incredible good. Thank you!!!!!!!!!
I am straight, I love you man ... Top notch explanation.
Amazing and incredibly simple (but at the same time very deep) explanation of the MRI/NMR technology. I'm very glad to find this video, while preparing to neuroimaging technology exam. It's a bit long but certainly worth to watch. Waintin' for more - thank you!
Tremendous video! The very best on this matter so far imo. Thank you.
Put your hands up for Part 2! Looking forward.
This is a great video! Really hope to see part II anytime soon.
Most interesting! I'm not in the industry at all but i managed to follow the concept because you explain it so clearly.
Please do a Part 2! I was really looking forward to bring-watching this lol -- subscribed though!
Best MRI video I have seen. The animations are super helpful! Thanks
Finally a very good video on this matter, thank you so much, we're still waiting for the second part.
ohh my God, thank you very much, i spent two weeks trying to understand this chapter but one video made it all clear
Best explanation and graphics for MR on YT. Looking forward to part 2. Thank you so much for all your time and effort in creating this video.
There were some sharp cookies who came up with this (MRI). Fascinating. Thanks for sharing!
Excellent video. Very well presented with clear visuals. Looking forward to part II. Thanks
Few minutes into this video and I have already understood some concepts that I have been mistaken about for years. Thank you so much for the effort.
Sir, this is an excellent breakdown of how NMR/MRI works. 10/10 will watch again, thx
Wow! So good! I am no physicist or mathematician, but even hearing it once and being exposed to it was very helpful conceptually. Thank you, and I can’t wait for part two!
Brilliant explanation. The best I have seen! I have been struggling to visualise this for years. The animations are great and your delivery style is perfect . . . .Many thanks
Brilliant Job!!!!!! Thank you so much for making it!!!!! Waiting for part 3 and more!!
this is amazing, really hope you can make it back with a part 2! would be lovely from you to add in the description or in some comment recommended literature from where you study, thanks!
Finally someone on RUclips that doesn't say spin is the rotation of a particle around its axes. Thank God, my faith in humanity has been restored.
What a time to be alive.. thank you for such a visually pleasing and concise explanation
My brain is broken after listening to this - I love it! Thank you!!
This is pure gold!!Fantastic explanation!!
Amazing you share such high quality teaching with the world for free like this! Immensely appreciated! And if you can't already tell how much we all love your video, I'm also going to ask for Part II...
This is a brilliant video, some of the clearest explanations I've heard! I hope one day you can make part 2.
One of the best explanation of the physics behind MRI I've listened to...Great job!
Both the animation and explanation are fantastic. Thank you very much!
This is brilliant content. Thank you for taking the time to produce, explain and visualize. Very much appreciated
the best MRI video I have watched so far. thank you for your generous sharing!
Watching your series of lectures helped me understand NMR and pass my last university exam. Thank you for your work! It was really clear and helpful.
This is such a phenomenal explanation, absolutely incredible work
I'd be really happy to see part two! You rock!
Such a helpful video. Thank you! Can’t wait for more!
Excellent tutorial :D. I am looking forward to Part 2!
Best explanation of MRI I have encountered. Thank you so much!
this is the best MRI video out on youtube, thank you!
Super sober and clean explanation. Very helpful!
This was an excellent explanation! Thank you so much for creating it
This 43 min presentation requires more repeated listening to understand the principle behind this. I am not technical, but able to follow what is presented. Appreciate the efforts for preparing this presentation with animations.
This video is incredibly good, i am trying to understand to MRI to shortly explain it in a radiomic master thesis, and this is by far the best I have seen, also promps for actually talking about the boltsman equation, it reminds me of semiconductor stuff !
I have seen few MRI videos but this was the best. Thank you. hoping for more lectures.
fantastic! but we are waiting for the second part :)
This is absolutely amazing video 😍 Thank you so much for all your time and efforts. Animations are amazing. You are the great lecturer!
Top notch work!!!! Looking forward to all your future videos!! Thank you!!
thank you so much! You've provided me a great starting point and base knowledge to use in my undergrad physics diss! you explained concepts so well!
Best description i ever seen about MRI, thank you
Thank You very much! Very helpful! Waiting for part 2!
Thanks for this video, amazing content. I never expected to understand such complex physics! Hope you find the time to work on part 2.
I am so happy I found this video!!! I’ve been slacking off cuz it’s been difficult to understand but you really explain so crystal clear thank you so much 😊
This explanation was so clear , so good!! Helps me a lot, cz my textbook didn't to a thing. Thank you so much for putting energy into doing this video. Please make some more about CT and MRI.
please make a second part, this explanation was amazing!
This is exceptionally high quality content. Thank you very much for your time and effort. We really appreciate it.
Excellent video. You have a great talent for creating visualizations. Thank you!
The Best, video to explain NMR. Thanks a lot for the hard work put in to explain and animate things.
Waiting for the next video.
Again, thanks a lot :)
excellent animations, the right ammount of math and very pedagogic. Bravo!
I can not thank you enough for this explanation!!! u are a god send
this video is truely fantastic! The Visuals are great and I like also that you make remarks to the more complicated physics
Thank you very much! Much better than trying to imagine from the text book. Instant clarity!
One of the best videos on MRI.
Thank you for this! Amazing and very clear explanations!
Such a complex topic understood by Phd students, this is one of the best presentation explaining the maths relating to quantum mechanics. As a radio communication technician has extended further knowledge into the atomic world. Subscribed and liked.
A big thank you to the content creator, really very nice illustration. I stopped the lecture in between and expressed my gratitude towards you.
Always cool when you come across a video that without any prompting whatsoever makes you like and subscribe
wow, 10 minutes into the video and Im blown by the amazing explanation. I never understood physics in childhood and this was wonderful. Thanks a lot for helping us out
Wonderful work, now I am waiting for the PART II like many others
i'm speechless! well done...and thumbs up!