ฝัง
- เผยแพร่เมื่อ 3 มิ.ย. 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 - วิทยาศาสตร์และเทคโนโลยี
![[TH] 2024 PMSL SEA GF D2 | Summer | ร่วมส่งแรงใจ เชียร์ไทยไปพร้อมกัน](http://i.ytimg.com/vi/dN2gLsCJ0T0/mqdefault.jpg)
Part 2 on the Spin Echo is now up and can be viewed here: th-cam.com/video/M7yh0To6Wbs/w-d-xo.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 TH-cam, 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.
The lecture literally saves my life! The explanation is so straightforward and easy to follow. Will recommend it to my mates. Cheers!
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.
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
:) :))((())))))))))
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 TH-camrs. 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.
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.
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.
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. 🤓!
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
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!
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
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!
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.
Brilliant. Thank you so much for putting in the time and effort to make this available. Are you doing a Part2 ?
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!
Thank you so much for this lecture. Probably the highest quality, clearest I've heard without oversimplifications.
Please do a Part 2! I was really looking forward to bring-watching this lol -- subscribed though!
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!
This is the best animation and teaching video I've found. Thanks for this!
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
It's a wonderful presentation. A melodious and clear voice. No complexity, no confusion and simple enough. Thanks a lot
This is a great video! Really hope to see part II anytime soon.
one of the best explanations about MRI on youtube, thanks for sharing
Tremendous video! The very best on this matter so far imo. Thank you.
Put your hands up for Part 2! Looking forward.
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! :)
Excellent video. Very well presented with clear visuals. Looking forward to part II. Thanks
Great video, you really touch on the physicals portions of MRI better than any other video I have come across.
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.
This is pure gold!!Fantastic explanation!!
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!
This is absolutely amazing video 😍 Thank you so much for all your time and efforts. Animations are amazing. You are the great lecturer!
Best MRI video I have seen. The animations are super helpful! Thanks
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
Thanks for this video, amazing content. I never expected to understand such complex physics! Hope you find the time to work on part 2.
Sir, this is an excellent breakdown of how NMR/MRI works. 10/10 will watch again, thx
please make a second part, this explanation was amazing!
Please meka a part 2!!! is was by far the best explanation I found on TH-cam!
This is a brilliant video, some of the clearest explanations I've heard! I hope one day you can make part 2.
Brilliant Job!!!!!! Thank you so much for making it!!!!! Waiting for part 3 and more!!
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 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'm an MR physicist, and I'm very picky about getting the physics correct, and this video is very good! Kudos!
This was an excellent explanation! Thank you so much for creating it
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 :)
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!
Such a helpful video. Thank you! Can’t wait for more!
This is such a phenomenal explanation, absolutely incredible work
Wonderful work, now I am waiting for the PART II like many others
Amazing lecture~! One of the perfect lectures about NMR. I'm waiting for Part II.
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
fantastic! but we are waiting for the second part :)
Both the animation and explanation are fantastic. Thank you very much!
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
Very good lecture !
I loved the animations !
I'd be really happy to see part two! You rock!
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!
wonderful video!!! Pt. 2 please!
Thanks. This is the most illustrative and intuitive one video in youtube to understand MRI.
I have seen few MRI videos but this was the best. Thank you. hoping for more lectures.
Thank You very much! Very helpful! Waiting for part 2!
this video is truely fantastic! The Visuals are great and I like also that you make remarks to the more complicated physics
Excellent tutorial :D. I am looking forward to Part 2!
One of the best explanation of the physics behind MRI I've listened to...Great job!
Super sober and clean explanation. Very helpful!
excellent animations, the right ammount of math and very pedagogic. Bravo!
Really helpful!! I hope you still planning on doing part II 🙏🏼
An impressive piece of work, bravo!
Excellent video. You have a great talent for creating visualizations. Thank you!
Thank you for this! Amazing and very clear explanations!
Most interesting! I'm not in the industry at all but i managed to follow the concept because you explain it so clearly.
This is brilliant content. Thank you for taking the time to produce, explain and visualize. Very much appreciated
This video is incredible. Great work! very well done
Wonderful lecture. Thank you Doctor.
Thank you very much! Much better than trying to imagine from the text book. Instant clarity!
This video was really helpful, the diagrams are great! Thank you.
One of the best videos on MRI.
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 😊
Hi amazing video, please get the second part, this video was amazingly helpfull, it would be great if you uploaded a second part. Thank you very much!
this is the best MRI video out on youtube, thank you!
the best MRI video I have watched so far. thank you for your generous sharing!
Top notch work!!!! Looking forward to all your future videos!! Thank you!!
This is magnificent content I really hope to see more content from you in the future
Very helpful as a radiology student trying to understand MRI. Curious to see part 2!
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!
Great video. This cleared many doubts I had about NMR.
Best explanation of MRI I have encountered. Thank you so much!
Amazing! Love the suspense at the end!
Thank you for the video :) I do hope we get a part 2 soon!
I haver never enjoyed MRI physic classes like this before it feels like I am watching documentary. Kudos to this channel !
This is exceptionally high quality content. Thank you very much for your time and effort. We really appreciate it.
This is brilliant. I am so looking forward to part 2
Brilliant! It was an amazing lecture, thank you.
Fantastic video! Part 2 would be of great help.
Hello from Spain. That this is the best explanation of MRI they've encountered.
Best description i ever seen about MRI, thank you