MRI physics overview | MRI Physics Course | Radiology Physics Course #1 

Took my ARRT licensing boards on the 19th of this month and passed! My highest scores were in Image Production which was over half of the questions and it’s all thanks to this playlist. I was lost before watching these videos and I am so grateful to have found this channel because it was the absolute best resource for understanding the physics behind mri. I cannot thank you enough for these videos and providing them for anyone free of charge.

I am a Field service engineer for a Medical Imaging service company. I work Primarily in X-ray. I was recently asked by my employer to learn MRI on my off time to prepare myself for the MRI training schools that I'll be sent to in the closing in future. MRI is so different from my typical imaging modalities that I just had no clue where to start. I am happy to say that after rewatching this video a dozen times and looking up definitions of just about every term used in the recording, that I am beginning to gain the first layer of understanding MRI. Thankyou for producing this well thought out and organized series. Keep up the fantastic work!

Dear Michael, I just wanted to express my sincere gratitude for the excellent videos you selflessly compiled for us free of charge. You truly have a gift for teaching. With the help of these I was able to pass the FRCR Part 1 Physics exam I sat a few weeks ago, I have no doubt this was largely contributed by your videos and I can’t thank you enough.

Thank u so much...u have made physics so easy...was in desperate need of MRI physics... I wish I could give 1000likes to each of ur videos... stay blessed❤

One of the most effective educators. Im really proud of you! 💯 👏🏼

Out of all the videos I came across with, this might be one of the most comprehensive ones! Thank you for aiding me in my study!

🎯 Key Takeaways for quick navigation: 00:00 🎙️ Introduction to the MRI physics module, aiming for a deep dive into specific topics. 00:27 🧩 MRI physics is compared to building a puzzle, emphasizing the importance of understanding each piece before seeing the big picture. 01:08 🧲 Overview of the MRI machine's layers, each representing a different type of magnet used for imaging. 01:36 📏 Introduction to the Cartesian plane used for localizing signals within the patient. 02:18 🎯 Explanation of nuclear magnetic resonance and the role of hydrogen atoms in MRI imaging. 03:28 🌡️ The role of temperature in the movement of hydrogen atoms within the body. 04:36 🔄 Discussion of the processional frequency of hydrogen atoms and its relation to the strength of the magnetic field. 05:59 📊 Introduction to the concept of net magnetization vector and its importance in MRI imaging. 07:20 📻 Explanation of the radio frequency pulse and its role in MRI imaging. 09:12 🤸‍♀️ Analogy of trampoline jumping to explain the importance of matching frequencies for energy transfer. 11:03 📉 Introduction to the free induction decay curve or the T2 star curve. 12:26 ⏳ Explanation of the regaining of longitudinal magnetization over time. 14:58 🕒 Discussion of Time of Echo (TE) and Time of Repetition (TR) in generating image contrast. 16:25 📸 Explanation of how different tissues like water and fat affect MRI images. 19:13 🛠️ Introduction to different pulse sequences used in MRI imaging. 21:48 🗂️ Discussion of k-space, a method for storing data to create MRI images. 22:16 📚 Final remarks, mentioning future modules and a question bank for self-assessment. Made with HARPA AI

First proper educational explanation video with visualisation online. We all know what it means to properly cover topics first on YT. Not sure what's your drive investing so much time for so little recognition so far but I guess fascination with educating and the fact that teaching others is the highest level of effective learning. Good luck!!!

I am relying on these lectures to pass my exams,am confident. Thank you Dr Michael

Im completely new to this science and am considering a career as an MRI technologist, this science seems so genuinely fascinating

i understood more in this single intro video than i did taking a semester long MR physics course.. so happy i found this!

"Thank you so much for all the hard work you put into educating us! Your passion for teaching is truly inspiring, and your dedication to helping us learn is greatly appreciated. You make learning fun and engaging, and I always look forward to your videos. Thank you again for everything you do!"

You are the Richard Feynman of Radiology! This is brilliant - I hope you get the career opportunities you deserve!

So many aha moments in this single video. You have officially rescued me from the many hours spent unsuccessfully trying to wrap my brain around these concepts. I cannot thank you enough.

Thank you so much for the video! It took me 3 hours to go through the 23 minutes while taking notes, but it was absolutely worth it. Even thought it´s just the overview, I already understand much more than from medschool lectures and radiology residency courses on MRI. You did a really great job! I am looking forward to studying from the following videos of this module as well.

You're doing a phenomenal job, Dr. Michael. I'm revisiting some of these concepts for teaching radiographers and I have to say, this is probably the best, most organised resource for MRI physics out there. Keep up the amazing work man!

Thank you for making these tutorials, I’ve been struggling with MRI physics for 4 years, even after acquiring radiology license there are concepts that are unclear to me. But after seeing two episodes of this series, some of my previous questions were solved, and I’ll see other episodes in the following days. Thank you again for the awesome contribution!❤

Your videos are great Michael!! Your teaching skills are really good! Thanks a lot!!

True Definition of the best teacher, You made complicated concept, look so easy, highly appreciate your efforts!

Man i cant thank you enough.. You have made TE & TR so clear that i almost cried when i understood it..Thanks a lot🙏

Thank you for all your hard work. I just passed my Radiology Board. Your Xray vids were what I started off with in prepping for. I'm now embarking on passing the MRI Boards and am starting with your videos. As some have said in comments, you and your videos are a blessing. You Rock!

thank you so much, I know this type of conteint may not provide so much views and interaction, but it is helping a lot of people. you are a very kind man thank you so much.

Such a perfect timing! I'm taking the MRI course next semester and I can't wait to watch this series :))

Excellent illustration of MRI imaging technique, clear and succinct even tho brief, impossible without thorough understanding of it, no wonder you are the teacher 👍👍👍

Thank you for your excellent presentation. I think that including all of the concepts briefly in an introductory lecture of MRI make the big picture very horrifying

my mind was just blown, thank you thank you thank you for explaining this so well

This helped me a lot to understand the basic principle of MRI ❤ You are really a great teacher , keep growing , keep teaching . Love from India 🇮🇳

I am a visual learner and I need to see picture things in my head to understand it. I wish you were my teacher!:) thank you so much for the videos. Great that you numbered them too.

Thank you so much for your amazing videos!!! I passed my ARRT boards thanks to your lectures.

Can’t expressed in words ur selfless efforts and pain ur taking to make such a tough subject lucid for students. It’s next level.I think GOD been there always to bless you.😊

Thank you 🎉. I have finally understand MRI physics

Holy crap that was good. Just started my radiology residency and the first time I read about MRI physics was a mess. But this video alone allowed me to understand what I was reading. Thank you so much!

I really appreciate you making these perfect series of videos on MRI. It helps me a lot. thank you million times. I wish you could give thousands of like for your fantastic videos as you deserve that.

Learning MRI right now..Read a few chapters of my MRI book. So so many AHA! moments with your explanations! Very well done, easy to understand, all the puzzle pieces are now coming together!

Awesome lecture! Thank you very very much.

Ohh my god most awaited video bt lil late fr my exam......no problem i will follow all Loaded luv regards

I LOVE the trampoline part!

I'm taking a Neuroimaging course and this series is helping tremendously. Very clear presentations.

Thank you Sir. Also expect videos on flouroscopy, mammography and computed tomography. Bcoz i am sure your videos will solve all our problem regarding these topics. Great work. ❤

Current MRI tech student and we're going to be starting physics in a month, this greatly helps me visualize what I'm reading. This will help me greatly 👍 thank you!! Looking forward to the rest of the videos 😊

Thanks a lot, looking forward to this course and the question bank.

I’m in the middle of step 1 review and your vids are so helpful. Congrats on your growing channel!

I really appreciate the analogies you used to explain difficult concepts. I had a really bad instructor for my mri physics class and this one video was more helpful than sitting in his 3 hour lecture. I look forward to more of your videos as i am preparing for mri certification exam. Thanks again for your amazing video(s) !!!

Superb video, very informative! You are a perfect teacher. Thank you so much.

one of the best lecturer ive ever watched, thank you sir for spreading information and ideas

You're such a good teacher man, I have to take my registry in a year and I can already tell your videos are gonna help so much, appreciate you

Thank you. Absolutely carried my way through x-ray and uss. Ready to be carried through mri

Your videos are honestly so helpful! Lol they are going to be the only reason I pass my radiology physics exam.

Great video. Thank you! I'm slightly less worried about starting this topic at uni next week now

I'm really grateful. Your lectures are a blessing for me. Keep up the good work. Lots of prayers for you. Can't wait for more MR physics and CT physics lectures .

Thank you! Just in time before my Physics exam.

I am not sure yet, but I think you just saved my master’s in neuroscience. I do not have a STEM background and this was INCREDIBLY helpful

Thanks for this, i was looking for some great videos to check out before I start taking my MRI

Currently doing my post grad for MRI, this will be a lifesaver and carry me through to the end!

you are truly amazing. Thank you so much. I was struggling with understanding different imaging modalities and you came to my save. Thank you

I haven’t watched the video yet but thank you so much. I’ve watched your other videos and they’re very informational. I look forward to the whole series. Thank you again for making the time for us 😭

LEGEND for all your physics videos. Thank you

Beautifully explained.... God bless you with more knowledge ❤

Thank you for this. Makes our life so much simpler

thank you for making a difficult concept make sense

Thanks Dr you are making our lives easier.... Lot of love

Thank you very much doc for your help I admire your hard work

I was deperatly waiting for this video to come..thanku for adding this

Thanks, with great description.

Agony is finding these videos the day before the exam

Thanks for another amazing lecture. Great animations btw :)

Thanks you for explaining so nicely hope you can start start some online courses where we can ask doubt as well

Hi Michael. Would you mimd sharing what tool/app/software you use to record these lectures?

Thank you for the very useful explanation and the nice illustrations I have a question.. I could not link these 2 statements That every atom has different precessional frequency with the statement that the applied RF pulse will have the same precessional frequency of the spins if we have many atoms and each has different precessional frequency then how come the RF will have one precessional frequency

amazing video series brother :) love it , super helpful and well presented

Sir I could use your help with an upcoming test. The instructors answer is contradicting research I have done. Can you help? Question Contrast in Diffusion Weighted Imaging (DWI) depends on: 1. The degree to which molecular mobility is impaired. 2. The sensitivity of the sequence to Brownian motion 3. T1 relaxation time 4. The direction of water diffusion 5. T2 relaxation Time The instructor is stating that 1,2,3 is correct. But the research I conducted states 1,2, and 4 is correct. Can you help with this and explain why?

Sir hats off to u sir.such a dedicated teacher.

Amazing helpful lecture, thanks!

You're videos are my week highlight 😅

Brilliant as usual ❤❤❤ Keep it up!

Incredible educator - thank you 🔥

Thank you so much It was such a wonderful video as always U have made understanding physics so simple and easy.. Amazing educator

I am looking for online help before going to school for this.

Thanks a lot sir,,, I m hopeful this series is going to be very helpful for us, stay blessed 🙌

I'm having frcr part 1 physics in March 2024 . Your videos are amazing. Bought the Q bank as well. Wish all the curriculum was here but mri is coming and hopefully more to come. Well done❤️❤️👏👏👏

Great explanation. Thank you for making it easy to understand

Perfect! Thank you so much.

Sir u r doing excellent work ..May God bless u ❤

Best explanation I have seen by far

amazing video. very clear explanation for a complex topic

i love your channel! thank u so much!

Wat an amazing explanation ,,this topic was wat i wanted badly for many times ! Stay safe and blessed dr🙏🙏🙏🙏

Thank you very much!

Thanks Sir for best lectures

Excelente explicación, saludos desde Chile

God bless u bro ❤

At 8:10, what then happens to those atoms that are antiparallel to the B0 when the parallel ones flip perpendicularly? Do those originally antiparallel ones stay antiparallel?

You explain this so well. Please explain what sample magnetic moment is ? Can I use it interchangeably with “protons” 🤔. This confuses me so much

I didn't quite understand something. When the magnetic moment of the protons is directed perpendicular to the MRI magnetic field (B0) why don't the protons start precessing around the axis of the RFP (B1) or y-axis? Thank you for an answer and for such a great video!

Thanks a million for your videos!

Soooo well explained!! Thanks

looking forward sequences videos ♥

Thank you for sharing this. You have made materials easily digestible with wonderful illustrations. I have just a question regarding the axis. Is z axis the horizontal axis or the vertical axis?

Looking forward to this whole lecture. Just a small remark. We don't speak about T1 of T2-images. We say T1-weighted or T2-weighted images. You always have both T1 and T2 contrast in the images.

Thank you so much 🙌🏻