The people who designed and engineered MRIs are geniuses . All these analogies don’t scratch the surface on the deep understanding one must have to make sense of this technology.
Please do more of these videos to explain other MRI sequences. Your analogies made the concepts so much more easier to understand! Please keep up the good work.
What a PERFECT explain it is!! I’m a student studying MRI in South korea where there are a lot of headmasters who lecture MRI poorly… Thank you for your high quality video and I’ll come back when I need your help thanks a lot!!
Explanation 10/10 Video 10/10 This is how you learn things. Use of analogies and clear cartoon videos. This video not only taught me the basics of MRI but it has taught me how i learn best rather than just read words in a textbook
This video is soo good. Like my professor tried explaining this over 3 lectures, but I didn't understand. This video made it so crystal clear. Well Done!!
I was struggling to understand the spin echo sequence with the complicated formulas taught in class, but this just made my day :) So easy to understand with the super cute animations! Thank you sooo much!!
at 0:24 you say a hydrogen atom is just a proton, one positron and one electron. I'm very confused why you said that. There is no positron in a hydrogen atom
@@delfipotters3161 yes, I know about positive charges of protons! But considering that luckily we live without positrons, "positive proton" seems to me the homophonic word that could match the erroneous "posi-tron"!
Very interesting. I recently saw a 101 video of how MRI works and it's been lingering in my mind. This gave me a reminder and further depth. It is tricky stuff, really needs to explained several times to a layman.
Yes! I'm a layperson too, but really want to get a grasp on this technology because it's so fascinating and revolutionary. Watching a variety of videos explaining it is helping me to get a good understanding.
4:33 in what dimension is the spiraling along the z-axis happening? One axis is the tranverse magnetization, on the other longitudinal. What is the 3. axis to create a 3d spiraling effect? Also does the transverse magnetization flip from the "negative side" to the "positive side" back and forth in the spiral? How does that happen? Also, is the initial free induction decay with the 90° pulses not registered by the MRI and only the following 180° pulses? Thank you so much for the video. Cute little protons :D
So, can you use an MRI machine to affect the spin of an entangled particle? And if you could, you use that to potentially send Binary over a great distance faster than light?
What does it mean to be "susceptible to T2* effects"? What kind of effects are those? I've understood T2-weighting to be a result of listening later, a longer TE, so that fat has already relaxed and all we pick up is signals from fluids. So a long TE and and a longer TR would result in a T2-weighted image. But the T2-signal is the first one?
Hi, thank you for reaching out to us. Unfortunately, because each person’s medical situation is different, we are unable to provide treatment recommendations or second opinions via this form of communication. If you would like to request an appointment at one of our hospitals, please call 888-872-1408. Our specially trained medical concierges can arrange consultations or treatment plans with the most appropriate specialists. Johns Hopkins USA can also provide language interpretation, financial counseling, assistance with travel arrangements and anything else to help make Johns Hopkins feel as close to home as possible.
It comes from time constants (please google to learn more if you're interested).. 63% is used because its 1-(1/e) for an 'increasing' constant (where e = exponential function)
Two tissue types A and B have the same proton density and the same T1, but A's T2 is half as long as B's T2. Which of the tissues gives the highest signal on a spin echo image taken with TR=2500 ms and TE = 50 ms? And why?
Radiologists generally dont dive that deep into the physics of imaging modalities, i am shocked to see this MD knowing everything, she must be a genius
While video was first from many which made me understand principals behind mri shout "crowd go wild, it's a tie" made me rewind clip few times back. It was hard to not start to think about rabbit vs tortoise race 😂
When atoms are hit with rf pulse, don't the parallel and anti-parallel fall over and align causing the 90 degree magnetic alignment? Anywho, this is extreme close to the method of nullifying gravity.
I am humanitarian (literature and English) and I was handed out this theme to explore (we have units devoted to physics and I need to give a presentation in English) but English is not my native language and I had bad mark at physics at school. How unlucky am I? P.S. the video is really good as I start to figure out some things
The people who designed and engineered MRIs are geniuses . All these analogies don’t scratch the surface on the deep understanding one must have to make sense of this technology.
Sir Peter Mansfield 💪💪💪
At least they’re trying
Please do more of these videos to explain other MRI sequences. Your analogies made the concepts so much more easier to understand! Please keep up the good work.
What a PERFECT explain it is!! I’m a student studying MRI in South korea where there are a lot of headmasters who lecture MRI poorly… Thank you for your high quality video and I’ll come back when I need your help thanks a lot!!
Explanation 10/10
Video 10/10
This is how you learn things. Use of analogies and clear cartoon videos. This video not only taught me the basics of MRI but it has taught me how i learn best rather than just read words in a textbook
This video is soo good. Like my professor tried explaining this over 3 lectures, but I didn't understand. This video made it so crystal clear. Well Done!!
Ha
Animator is god.
I was struggling to understand the spin echo sequence with the complicated formulas taught in class, but this just made my day :) So easy to understand with the super cute animations! Thank you sooo much!!
The best explanation of the MRI basics ever!!!
You brought me back from the brink of panic. Thank you.
That was incredible. I loved that you still used useful analogies for such a complex topic.
At 1:58 in the video, the explanation was well done and allowed me to grasp the principles behind SPIN UP and SPIN DOWN effectively.
BEST VIDEO ON MRI AND NMR. I have been trying to understand this concept for hours. I have a much more clear understanding now. Thank Youuuu!
Huge help thanks nobody ever explains what axis things are spinning in. Please make more of these!
I am amazed over how much more understandable this concept just became, with your illustrations and great explanations. Thank you so much!!
Brilliant! Simply brilliant! Please make more videos like this, Dr. Erin Gomez and Emily Wu!
Please keep more coming!! This is so good!
Super, can't have a better explanation than this. Amazing
What an amazing job you have done! Thank you so much! This is a phenomenal video. You made this very easy to understand.
great video ! just summarized 105 slides of MRI in 10 minutes . Thank you
This is an excellent video to explain the broad concept to physicians. Thank you.
Thank you , this is so helpful, really impressive animation :O
at 0:24 you say a hydrogen atom is just a proton, one positron and one electron. I'm very confused why you said that. There is no positron in a hydrogen atom
Me too
She probably meant "positive proton"...
@@MyNotSoHumbleOpinion Protons always have a positive charge. She hopefully meant proton, but saying positron is very wrong.
@@delfipotters3161 yes, I know about positive charges of protons! But considering that luckily we live without positrons, "positive proton" seems to me the homophonic word that could match the erroneous "posi-tron"!
I guess that was jus slip of the tongue, she meant proton. She seems to know her stuff very well!
This is hands down the best explanation i've seen for this..!!!!
Thank you! Makes so much sense for a visual learner like me! Give the animator a big applause!
Best MRI video ever!!! Please make more of thesee
Needed to learn MRI basics quickly, and this was perfect. Thanks so much!!!
This is super helpful!! is there another video for T2 and T2* weighting?
Was about to say that 🙏 would even pay for that !
Very interesting. I recently saw a 101 video of how MRI works and it's been lingering in my mind. This gave me a reminder and further depth. It is tricky stuff, really needs to explained several times to a layman.
Yes! I'm a layperson too, but really want to get a grasp on this technology because it's so fascinating and revolutionary. Watching a variety of videos explaining it is helping me to get a good understanding.
Me too, is there attractors involved. Deep stuff
Thanks for solid fundamental articulation of hidden underlying dynamics mechanisms about spin echo sequence imaging using directional RF Pulses.😊❤
Your video is very great. I’ve just understand what the multiple line symbol in phase diagram means.
You are very comprehensive. Thank you.
Is there a second video yet? Thank you!! This is very informative
This is amazing!!!! Looking for more of these!
Excellent explanation
0:26 ...I hear you mentioning a "positron"... where would that be? A positron is an antimatter particle, an electron with positive charge.... right?
Positrons… that’s PET scanners.
Cutest explanation ever seen😆
This is amazing!! I wish there were more videos
I’ve met dr Gomez before and can attest that she’s a great person in general ❤ happy to hear her voice on a UA-cam vid
great explanation.. finally. Thank you so much!
This is a really good explanation! Thank you!!
This is soooo good!
Wow this is so good! We need more
4:33 in what dimension is the spiraling along the z-axis happening? One axis is the tranverse magnetization, on the other longitudinal. What is the 3. axis to create a 3d spiraling effect? Also does the transverse magnetization flip from the "negative side" to the "positive side" back and forth in the spiral? How does that happen? Also, is the initial free induction decay with the 90° pulses not registered by the MRI and only the following 180° pulses? Thank you so much for the video. Cute little protons :D
It says more on that later at the end- is there another video in this series?
this video saved me!!! so clear, thank you
Excellent animation and beautifully explained
Thank you very much! It was really helpful. Keep up the good work!
Exam in just a few hours, if i pass, it'll be thanks to you
So, can you use an MRI machine to affect the spin of an entangled particle? And if you could, you use that to potentially send Binary over a great distance faster than light?
thank you so much! you are amazing!
5:19 It's 37% not 63%, thank u for this great animation
T2 time 63% of transverse magnetization to dephase or 37% is left in phase
Magnificente, but.. Did you said that a proton components are onde pósitron and onde electron? It's not wrong?
fantastic explanation, wow!!!!!!!!!
please we need part 2 !!!!!!!!!!!!
thank u
Very nicely explained
Does that mean that not all protons flip when an RF is applied? Only a few become antiparallel, and those few then undergo free induction decay?
What does it mean to be "susceptible to T2* effects"? What kind of effects are those? I've understood T2-weighting to be a result of listening later, a longer TE, so that fat has already relaxed and all we pick up is signals from fluids. So a long TE and and a longer TR would result in a T2-weighted image. But the T2-signal is the first one?
Hi, thank you for reaching out to us. Unfortunately, because each person’s medical situation is different, we are unable to provide treatment recommendations or second opinions via this form of communication.
If you would like to request an appointment at one of our hospitals, please call 888-872-1408. Our specially trained medical concierges can arrange consultations or treatment plans with the most appropriate specialists. Johns Hopkins USA can also provide language interpretation, financial counseling, assistance with travel arrangements and anything else to help make Johns Hopkins feel as close to home as possible.
Sublime Explanation!
I think you misspelled something at 0:27. Hydrogen atom consists of one electron and one proton not positron...
Absolutely amazing video😊
how these protons are cute 😍, i could understand all concepts.. god bless u
May I ask why T1 have to be 63% of recovery ? Where this number come from ? Is it 50% recover of total energy ?
It comes from time constants (please google to learn more if you're interested).. 63% is used because its 1-(1/e) for an 'increasing' constant (where e = exponential function)
Thank you so much
Two tissue types A
and B have the same
proton density and
the same T1, but A's
T2 is half as long as
B's T2. Which of the
tissues gives the
highest signal on a
spin echo image
taken with TR=2500
ms and TE = 50 ms?
And why?
B?
Excellent description. 😁
This was so helpful
Radiologists generally dont dive that deep into the physics of imaging modalities, i am shocked to see this MD knowing everything, she must be a genius
This is wonderful!!
Damn what a vocab this woman has
thank you for this great video
How did a positron made it here 0:25 ? Can someone explain?
I think she ment proton.
Yes, I wondering the same thing. What she said in the video is incorrect, and I think what she meant is "a hydrogen atom is a proton and an electron"
Why it is call “90° pulse” if the spin point to the antiparallel and not to the transversal?
beautiful video
that was amazing!
Incredible.
Thank you
love it!!
wheres the T1 vs T2 weighted video :(
Thank you video
While video was first from many which made me understand principals behind mri shout "crowd go wild, it's a tie" made me rewind clip few times back. It was hard to not start to think about rabbit vs tortoise race 😂
This vdo is valuable!
Thank you!
When atoms are hit with rf pulse, don't the parallel and anti-parallel fall over and align causing the 90 degree magnetic alignment?
Anywho, this is extreme close to the method of nullifying gravity.
why do mri scan not scan the bottom nerves s2 to s5 ?!
great video. tq very much
I am humanitarian (literature and English) and I was handed out this theme to explore (we have units devoted to physics and I need to give a presentation in English) but English is not my native language and I had bad mark at physics at school.
How unlucky am I?
P.S. the video is really good as I start to figure out some things
not assuming anything about this particular presenter, but if it were an asian mom, the RF mom character would be holding a broom
amazing Video
I clicked cuz the molecules where so happy! 🥰🥰
What is T1 though?
Where is the next one about T1 T2 phase?
Nice ❤
Whose the animater the cpu?
can i get notes form
0:25 Excuse me what? "Positron"?
How H pos have poles while having no electron
God bless you 🥲
Wow
soooooc cute!!!!
What's magnet