MRI Physics FULLY Explained! | MRI Physics Course Lecture 1

Welcome to the first lecture in the MRI Physics EXPLAINED lecture series filled with explosive new revelations such as... NMR! The Larmor Equation! And T2 decay! Join Dr. TE M.D. as he tells the story of MRI Physics like it's never been told before!
CHAPTERS:
00:00-04:03 Intro
04:03-09:08 Nuclear Magnetic Resonance
09:08-14:18 Larmor Frequency and the RF Pulse
14:18-18:36 Signal Capture
18:36-21:09 T2 Decay
21:09-22:52 Introduction to Signal Localization
22:52-27:24 Conceptual Questions/Wrap Up
Like these lectures and want more? Consider supporting the quest for truth in MRI Physics by donating at: www.buymeacoffee.com/lightson...
Want me to bring these lectures live to your practice or institution packed full of live demos and a lot of arm waving? Send an email to: [e-mail]
Questions or suggestions for future topics? Send an email or follow Dr. TE on:
Instagram: / lightsonradiology
Twitter: @DrTEMD
#mri #physics #radiology #nmr #course #radiologytutorial #radiologycourse

[@RayJacobsenJr]

As an MRI Field Service Engineer, it is my job to ensure that all the intricate MRI Physics are functioning properly every day. I'm grateful for the "MRI Physics EXPLAINED" channel on KZbin, now I can direct people with questions to this resource. Your efforts are much appreciated, please continue to create valuable content.

[@MRIPhysicsEXPLAINED]

Thank you for the comment and for keeping these amazing machines running! We've got a whole set of advanced lectures coming that will get into some engineering topics so stayed tuned!

[@sidneydohmen6282]

I've found you through reddit. Boiiii have i been searching for a video like this. It took me 1,5 year to fully understand the flip angle...

[@MRIPhysicsEXPLAINED]

Thanks and welcome to the channel! So happy to see the videos helping and getting people excited to learn MRI physics, the next video will be dropping in a few days so stay tuned!

[@takauyamurengwa1250]

you deserve a spot in radiology heaven,,, a very complex topic simplified to sophistication. I'm binging on your series tonight!!! Love from Zimbabwe

[@MRIPhysicsEXPLAINED]

Wow thank you! Love right back at you from the U.S.!

[@RadCastAcademy]

The hero we need but don't deserve. Top content. Hope you don't mind us sharing with all the candidates preparing for the FRCR Part 1 physics exam

[@MRIPhysicsEXPLAINED]

Ha too kind! The greatest honor you can give is sharing the lectures with anyone interested, thanks for the support!

[@bengoodey]

Thank you! I’m so looking forward to hopefully getting a better grasp on the physics involved once i get to watch these series.

[@MRIPhysicsEXPLAINED]

Thanks for the support, phase encoding coming soon!

[@micoguttang7789]

I finally found a source that I could easily understand. Thank you so much. More power to your YT channel! 🙌🏻

[@MRIPhysicsEXPLAINED]

Awesome to hear it helped, thanks for the support!

[@akiwibirdie]

I appreciate this so so much! Thank you for breaking down this very complex topic and explaining it in a simple and easily understood manner. Please keep the videos coming!

[@MRIPhysicsEXPLAINED]

Thanks for watching and spreading the word, more to come!

[@billyidolman4666]

Thank you for making these videos. These are by far the most clear and concise that I have come across

[@MRIPhysicsEXPLAINED]

Glad you found it helpful and thanks for watching!

[@suomynonaanonymous]

Excellent explanation! Best I’ve come across.

[@MRIPhysicsEXPLAINED]

Thank you! Be sure to check out the other videos if you liked this one!

[@Skempy]

Bump! Ouch! I've just arrived from Reddit! I'm so delighted to have found you, I'm brushing up on the subject before I start my new job after many years away. Thanks for being here 😊

[@MRIPhysicsEXPLAINED]

Welcome! Thanks for watching and good luck on the new job!

[@adamM12321]

Fantastic content. Thank you for including visuals aids and a dark backdrop that's easy on the eyes. I'm heading into school for MRI this fall and this is a valuable resource. 🍻

[@MRIPhysicsEXPLAINED]

Glad it helped! Definitely take a peak at the other videos if you found this one helpful and good luck on your studies!

[@Kazilla_gray]

Thank you doc for your effort 👍🏻

[@MRIPhysicsEXPLAINED]

Thanks for watching, more videos to come so stay tuned and please share with anyone interested!

[@wisemongol]

Amazing videos! Thank you

[@MRIPhysicsEXPLAINED]

Great to hear they are helping and thanks for the comment! New lecture this weekend!

[@TAHA-TOUABA-RADIOGRAPHER]

Thank you very much pro

[@farahsamer7130]

You're a genius! thank you so much

[@MRIPhysicsEXPLAINED]

Thanks for commenting and glad it helped!

[@Theextremepessimist]

Awesome video

[@MRIPhysicsEXPLAINED]

Hope it was helpful and thanks for the support!

[@dsyc]

Thank you.

[@MRIPhysicsEXPLAINED]

Thanks for watching and supporting the channel!

[@gsmith9158]

Wow THANK YOU ❤

[@MRIPhysicsEXPLAINED]

Thanks for watching and supporting!

[@Iris-iris028]

Thank you ❤

[@MRIPhysicsEXPLAINED]

Thanks for watching!

[@tevinramkaran450]

Dr.! Amazing, got a MRI test tomorrow and you basically did what my lecturer couldn't do in 6 -8hrs and shoved it into a digestible 30mins!

[@MRIPhysicsEXPLAINED]

Glad it helped and good luck on your test!!

[@shelseabrennan3976]

Okay...so I'm currently cross training in MR and my company is structuring a track based on my experience for future employees also wanting to cross train. I'm using the ASRT modules for my required structured education hours and I can not tell you how glad I am to have stumbled upon these videos. They're great. I'm going to recommend that we add them to the other supplemental materials. Thank you for doing this!

[@MRIPhysicsEXPLAINED]

Wow thank you, too kind! Please do share and if your company ever wants an in-person workshop on all this let me know!

[@fizaazam2340]

I always been weak in physics and after taking ur lecture.. involutarily i just said waaaooo! Bcz i m amazed that this complex topic can be so simple ...hats off for ur teaching!

[@MRIPhysicsEXPLAINED]

Thanks for the comment and happy you found the lecture useful! Check out the others too if you like this one, they are done in the same style!

[@fortbball24]

Also found you through a reddit post, great video man!

[@MRIPhysicsEXPLAINED]

Thanks for watching and the support!

[@robertkopp873]

ERROR at 10:08. It is not AM radio at this frequency. AM radio band stops at about 1.5 Mhz. 68Mhz is in the VHF range (30 to 300Mhz). The radio frequency spectrum was set by ITU at the dawn of (broadcasting) time.

[@MRIPhysicsEXPLAINED]

Great catch Robert! Thanks for bringing that to my attention, it has now been corrected. Cheers! -Dr. TE

[@waltjopine]

Thank you so much, your hilarious and marvelous all at once. I understand it now lol

[@MRIPhysicsEXPLAINED]

Glad you found them helpful and survived the bad jokes 😂. Lots of new content in the works, stay tuned!

[@MRIPhysicsEXPLAINED]

Additional lectures below! Lecture #1 - MRI Physics Explained kzbin.info/www/bejne/aISWfZx6oMufY5I Lecture #2 - Slice Selection kzbin.info/www/bejne/rGnNiGuBZt5ggac Lecture #3 - Frequency Encoding kzbin.info/www/bejne/eorNYoaCg9Wjh68 Lecture #4 - Phase Encoding kzbin.info/www/bejne/pHenq4usn6tqnck Lecture #5 - T2 Contrast kzbin.info/www/bejne/Z53Nq3-gpsyCfcU Lecture #6 - T1 Contrast kzbin.info/www/bejne/bqu3dYmOpJxjpc0 Lecture #7 - TR, TE & Image Weighting kzbin.info/www/bejne/aoDHgmyEfaite6s Lecture #8 - The Echo: kzbin.info/www/bejne/hHKonmpta6mXnas Lecture #9 - The Spin-Echo kzbin.info/www/bejne/rHyZgZh5hdWCgrs

[@srimathibalu1333]

Hi sir.. I had one doubt The spinning action of proton is after applying radiofrequency Or before ( it has natural spinning process or not?)

[@MRIPhysicsEXPLAINED]

Hello, I think the term "spin" is one that's commonly used in MRI physics but can have multiple meanings so can be quite confusing. Every particle (protons in our case) have a quantum spin at rest (spin up or spin down). But the spins are randomly aligned in space. When we stick them in a magnetic field, we get a few of these to align along the magnetic field, but they aren't precessing. It is the RF pulse that makes these protons ("spins") precess in concert together about the Z-axis (confusingly also sometimes referred to as "spinning" about the Z-axis). We go into a little more depth into the equation that governs this alignment in the following episode: kzbin.info/www/bejne/rXXMnqF5Z6qKl5o. Hope this helps.

[@Plasma_King]

Hi! I am interested in getting into the radiology field, most especially MRI. Do most of the physics that they teach you in school apply to what you actually do in the MRI field or you just have to know the basics and use common sense?

[@MRIPhysicsEXPLAINED]

Hello and congratulations on your interest in radiology, it's a great field to be in! By radiology field do you mean as a technician acquiring the exams, or as a radiologist reading them? Either way, both will have standardized exams that include some base knowledge of MRI physics. Unfortunately, this is typically in the form of random facts you'll need to memorize and which aren't very useful in actually understanding the physics, one of the reasons I made these videos. But in reality, only the engineers designing the machines will need to fully understand the physics and work with them on a daily basis. The rest of us are more users of the machine. Think about your car, a team of people behind the scenes did all the math, designing and testing to produce the car you drive, and you as the driver are the one working the controls to move and navigate the car. You really don't need to understand how the machine was engineered, just how to operate it. Radiologists and especially MRI technologists are the drivers of the MRI machine, working the controls to make sure the images are useful by understanding how changing parameters within the machine affect it's performance. If this sounds fun to you then definitely try to shadow a technologist or radiologist. If you would like to be a designer of the machine and live with the physics everyday, I would suggest studying engineering and look at jobs for companies that produce the machines such as Siemens or General Electric!

[@Plasma_King]

@@MRIPhysicsEXPLAINED Wow, thank you so much for that thorough explanation. I am gearing towards being an MRI technologist, and just the thought of seeing how the results come out has always been fascinating. Thank you and more blessings to you!

[@Blueyzachary]

When I realized JPEGs and a linear gradient affecting spin were related 😀

[@MRIPhysicsEXPLAINED]

Love it!

[@Omega9935]

I had a bad feeling that sooner or later foruer things will show up in the video, and exactly that happend.

[@MRIPhysicsEXPLAINED]

We will have a dedicated full later on Fourier things, just you wait!

[@Omega9935]

@@MRIPhysicsEXPLAINED This is not a complain, I fear from Fourier things.

[@MRIPhysicsEXPLAINED]

We will make it fun and interesting to learn, don't worry!@@Omega9935

[@Omega9935]

@@MRIPhysicsEXPLAINED Then I don't worry. 💪

[@dlo5640]

This guy is awesome!

[@MRIPhysicsEXPLAINED]

Much thanks!

[@Obscure121gw]

Local AM radio stations operate between 540 and 1700 kHz, not 68 MHz. FM radio stations operate between 88 and 108 MHz which is slightly higher than your example of a 1.5T magnetic field.

[@MRIPhysicsEXPLAINED]

Thanks for the comment. This (should have been) already corrected with a caption that pops up during this segment saying the band is analog TV and into the FM range.