Medical students just curious about mechanism of mri😢😢
@EmilBureau
13 күн бұрын
Thank you so much for this very clear and interesting lecture!
@MUCOM49
27 күн бұрын
To better understand the Spin-Echo technique in MRI, you can watch the following videos which provide visual explanations of the process: 1. [Fast Spin Echo - Spaces Animation](kzitem.info/news/bejne/s39jv6h7e5V5npg) - This video offers an animation that helps visualize the fast spin-echo process in MRI. 2. [How MRI Works - Part 2 - The Spin Echo](kzitem.info/news/bejne/rm2vzmSKqGiIlag) - This video explains the spin-echo sequence, detailing the 90° and 180° RF pulses and how they work to create the MRI image. These videos will help you see how the protons in the body are manipulated by the MRI machine to produce detailed images through the spin-echo sequence.
@jcudndkzma
29 күн бұрын
Wait what? The excitation pulse rotates ? I thought it oscillates linearly.. What am I missing here
@rubhern8187
Ай бұрын
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.
@rickperalta1921
Ай бұрын
Excellent presentstion! Thank you fir insughtful dilligence. Pleasexdo axsegemnt in the elecyronics and relsted base software to collect and cinvert the raw dataxand cinvert to image data. Details of ADC sample frequency, how RF frequencies are shifted (mixers), RF PA, LNA and related filters. And maybe post a biography on yourself.
@jimpanse1638
Ай бұрын
19:35 But the omegas arent the same for all atoms otherwise they wouldnt dephase so a rotating frame is just the average omega0 and the linewidth of the omega spec is just giving the decay time of the frequency that is still omega0. So to even think about a rotating frame is still making sense?
@mateoriosvaldez
Ай бұрын
Thank you for this master class
@mertyaroglu4964
Ай бұрын
Did the quantum mechanical NMR video ever came out? Does anyone know?
@davidvela2383
Ай бұрын
This is beautiful <3
@user-bb6lw9eg9e
Ай бұрын
Thank you very much for this series!
@12345anvesh
2 ай бұрын
Amazing video. Thanks a lot for your efforts in making this video.
@farshadjafarpour8143
2 ай бұрын
It was so fascinating , thanks
@user-dt1be8pb1m
2 ай бұрын
I have seen only 4 videos. It´s possible to find more videos? please.
@user-dt1be8pb1m
2 ай бұрын
Hello from Spain. That this is the best explanation of MRI they've encountered.
@susantpanigrahi1149
2 ай бұрын
38:15 Note: The Nyquist frequency is as stated in 52:45 is half of the Sampling frequency \omega_s. Thus the total frequency space will vary between (- \omega_s/2) to (+ \omega_s/2). Where \omega_s = Sampling Frequency.
@user-ki6uh6wc8j
2 ай бұрын
The lecture literally saves my life! The explanation is so straightforward and easy to follow. Will recommend it to my mates. Cheers!
@ronaldpavon3434
2 ай бұрын
1. a. J/T (magnetic moment) b. Unitless 2. a. 0.02 b. 5.88e3 T c. 0.05 K *This does not look correct, I used the formula but It feel like something is missing 3. a. TB has a greater signal at TE, according to the amount of T2 weighting evaluated at that time. b. TB will still have the greater signal c. The greatest contrast would be achieved at the greater T2 of all tissues, therefore at TE = 40ms 4. TE = 7.699ms **I will do a follow-up later
@ronaldpavon3434
2 ай бұрын
1. a. J/T (magnetic moment) b. Unitless 2. a. 0.02 b.
@paramgoyal2860
2 ай бұрын
Best videos. Have watched this video 6 times by now. I am starting to get it. The maths part between 30-45 minutes needs some work from me to fully get.
@manuelpereda4013
3 ай бұрын
Hi! I'm doing my final degree project on nmr. Would you recomend me some bibliography regarding this videos? They helped me a lot. Thank you!
@brucevanbeek3133
3 ай бұрын
I am here because my son is in MRI ! At a university. So, to understand his passion . I'm learning from these videos. The language and understanding of MRI. Thank you . 🎉
@seekingtruth1315
3 ай бұрын
Amazing! The best video for MRI introduction on KZitem.
@nccastro653
3 ай бұрын
PLEASE MOREEEE!
@i34p
3 ай бұрын
why can't you turn of the MRI magnet off?
@kh76dam
3 ай бұрын
Many thanks for this good video , I appriciate your effort that you did clear voice , organized lecture ...wow
@devrim-oguz
3 ай бұрын
You just summarized the entire electronics engineering degree in one video 😂
@xanosweeting5483
3 ай бұрын
Always cool when you come across a video that without any prompting whatsoever makes you like and subscribe
@joetheindividual4855
3 ай бұрын
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.
@tictactoe101
3 ай бұрын
Super fantastic mri series! Keep going ❤❤
@eeemagic7729
4 ай бұрын
thank you for your great tutorial. excellent !!
@YH-vf6pc
4 ай бұрын
I have one comment. I am still not sure what tips the protons out of alignment. You never actually explained that, you just mention it for the first time when you start to discuss T1 relaxation at 21:35
@rodolfoassereto7626
4 ай бұрын
Please, keep this up. This is one of the best channels I've ever seen (I would go as far as saying that you should explain more general stuff: for example, your explanations of the Fourier transform are one of the best I have seen on the internet)
@daneilpatro2776
4 ай бұрын
hey thankyou
@Kris_M
4 ай бұрын
Very nice video. One very common mistake though @34:38, only frequencies *below* the Nyquist frequency can be sampled. => "make sure your sample rate is *more than twice* as high as your max frequency"
@SergioMiletto8
4 ай бұрын
Bro keep up with KZitem as you are extremely good at explaining (and i have watched many videos of the same genre like 3b1b).
@SergioMiletto8
5 ай бұрын
On the why they are so expensive as an Italian i must say we pay only like 50 euro to get it done so america has an healthcare problem due to an everyone pays for himself system where little amount of taxes go to fund hospitals. For the rest great deep explanation.
@agustinbarquero8898
4 ай бұрын
He meant expensive as in making the machine, not the patient side.
@yrusb
5 ай бұрын
15:12 So you´re basically telling me that I FINALLY found that one in 10.000 videos that is made by someone who knows how to solve that mystery and then he doesn´t explain this. Can you PLEASE make a follow-up video before I completely lose myself? I have literally looked for something that explains this for OVER HALF A YEAR and now you don´t explain it. That is the only reason I even clicked this video. I. Want. To. KNOW. Yo no offence dude, seems like you´re doing a good job here but at some point I will go insane if I keep looking for that answer. Which means I have to stop looking. That can´t be the answer
@yrusb
5 ай бұрын
Okay I think I got it, I guess it´s a good thing you mentioned the transition states and the ket-vectors oO So correct me if I´m wrong, but the transition states are probably complex-valued linear combinations of the ket-vectors in such a way that there are only two possible linear combinations for eigenvectors which lead to spin up/spin down and the transition states with the flip-angels aren´t you´re standard boring angles but actually are complex-valued angles. Right or wrong?
@BIBECHYOUTUification
5 ай бұрын
The best KZitem channel for academic. Thank you so much.
@mihaimoldo
5 ай бұрын
Hell no. Keep making these MRI videos because the subject is vast and there's much to learn. CT and X-rays had their eras...in the 90s. Now its MR Time!
@saragh1266
5 ай бұрын
Thank you very much for the insightful lecture! Could you kindly share the solutions to the exercise presented at the end of the video? I'd like to cross-reference my responses with the correct ones. Thanks again!
@timangoes
5 ай бұрын
@36:12 , it seems that the labeled exponentials for phase encoding and frequency encoding are flipped? based on the preceding sections, frequency encoding should be the one with time dependence and the phase encoding term should be the one where the gradient is only turned on for some time tau
@thepirl903
5 ай бұрын
Arg, you are correct. I did swap those. Thanks for catching!
@virgi6480
5 ай бұрын
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.
@blakedsouza563
5 ай бұрын
I am straight, I love you man ... Top notch explanation.
@akashbhattarai8101
5 ай бұрын
🙏🙏🙏
@alejandroplanas4735
5 ай бұрын
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.
@melikamirghaffari2785
5 ай бұрын
Thanks for this great explanation 🙏🏻
@danielvanderveen1523
6 ай бұрын
Awesome job! This has helped my studying significantly. I am following a slightly broader course on MRI but this video provides much of the intuitive understanding you need to grasp a lot of related concepts. Wonderful animations as well!
@Yoda2000ful
6 ай бұрын
Hi! I am writing a master thesis where in one chapter I describe how the MRI works. It would be valuabe to cite your work there. Could you provide a citation for this great MRI series?
@vajostjepo7637
6 ай бұрын
Hey, awesome video! Really clear and just fantastic. Huge thanks for this great explanatory video!
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