I’m a Neurosurgery resident and have forever been looking for a concise overview of brain MRI sequences. This video is exactly what I was looking for. Besides, you have a good sense of humor, the BBC news sound-clip for inside tip was pretty funny. Also, I laughed when I saw the SHITHEADS mnemonic for DWI sequence. Thanks a lot. You’re amazing.
i have looked for so many videos explaining just the basics about a MRI. This has by far been the best explanation I have ever seen! i wish I came across your lovely video during my Neurosurgical training! Never have I ever enjoyed brushing up my basics so much before Sir! Thank you!
Hello doctor again, can I ask whether brian tumor signal intensity exhibit by FLAIR, explain by just CSF TR/TE? or also the fluid speed(fast/slow flow fluid) ? For example, if a cystic lesion expressed hypodense on FLAIR and hyperdense on T2WI, does that just mean that the fluid TR/TE in cyst approximate that of CSF, or should we also considered the fluid flowing speed? thanks
@黃紹閔 Hi, sorry didn't catch your question earlier. If a cystic lesion is similar in signal to CSF (bright on T2 and dark on FLAIR), then yes, it has to do with its T2 property in that TR/TE is same or very similar to water, allowing it to have FLAIR signal suppression. It is not due to fast flow. In theory, if you have a FLAIR hyperintense fluid structure that is flowing rapidly (can't really think of a good example in pathology), then you can have loss of sign ("flow void) too and will appears dark on FLAIR sequence.
What does slightly high t1 signal in globus pallidus extending to cerebral peduncles mean? Does anyone know? Does high t1 signal refer to a certain type of damage? Such as lesions or atrophy or hemorrhage or something else? I've tried to research but it seems to be kind of a broad term...as someone who knows nothing about this stuff
If you're referring to a normal MRI (17:14), that slightly brighter T1 signal in GP compared to the adjacent putamen is due to myelin. GP is more myelinated compared to relatively unmyelinated structure like putamen. Which is also why it looks darker on T2 (27:49), as well as GP looks more "pale" on gross anatomy specimen compare to putamen, I believe. If it's a lot brighter, then it is probably pathologic, or due to increased calcification / mineralization deposition.
@@neuroradish Thank you for responding! It was a normal T1-weighted MRI without contrast...I hope I'm saying that right haha. So if GP is already myelinated but the MRI found that it is a "higher t1 signal" than normal range or whatever. Does that mean MORE myelination? The reason I ask is because my neurologist had ordered the MRI due to her suspecting MS. But that's DE-myelination as far as I understand. So that would be like the opposite, it sounds like.
Very thanks for your video, I have the MRI physics of T1,T2... perfectly through your lectures. Can I ask doctor do you recommend any video or books have lecture on MRI and CT of neck? Thanks.
An intensivist who struggled to gain knowledge of mri brain beyond DWI. Appreciate one of the best lectures I listened to .
4:19 vertically it reads "shit heads" 😂😂 good lecture btw. 💪🏽❤️ Thank you for this. (:
Sir, you are a master at teaching radiology. Excellent job. Please keep up the great work.
The anatomy explained here is just amazing.
New R1 here just starting out my Neuro rotation. This is by far the best and most concise MRI brain video I have watched. Thank you sir!!
This was super helpful before I start my week of Neuro MR as a first year Radiology resident. Thank you!
Amazing lecture. I was completely lost before watching this video. Now i feel like i know the basics enough to start
I’m a Neurosurgery resident and have forever been looking for a concise overview of brain MRI sequences. This video is exactly what I was looking for. Besides, you have a good sense of humor, the BBC news sound-clip for inside tip was pretty funny. Also, I laughed when I saw the SHITHEADS mnemonic for DWI sequence. Thanks a lot. You’re amazing.
I'm sure the mnemonic is pure coincidence. 😉 Glad it's helpful.
i have looked for so many videos explaining just the basics about a MRI. This has by far been the best explanation I have ever seen! i wish I came across your lovely video during my Neurosurgical training! Never have I ever enjoyed brushing up my basics so much before Sir! Thank you!
This is the best tutorial I had viewed ever! Thank you so much!
Thank you so much from South Korea.
Very lucid presentation. Thank you so much for you made it very simple.
Thank you so much sir 😍
This lecture is simply awesome.
Even a blind can see and understand
Thanks a lot
Pranam
🙏
Thanks you so much! I've just started to learn brain MRI and this lecture was really helpful, especially anatomy described in such nice way.
Wonderful lecture, please continue posting such lectures. Thanks a ton Sir.
Excellent presentation
Thank you for making such a simple, comprehensible and yet complete video for anatomy and search pattern in brain MRI!
Thanks a bunch! please continue with wonderful lectures and case presentations
Thanks. Will do.
@@neuroradish...sir...can signs of watershed stroke be missmatched for something else
And what?
Thank you so much!! Such an amazing video!
Thank you so much, I was eagerly waiting for your next video.
YW. Glad it's helpful.
This is a brilliant overview, thank you!
This lecture is very helpful and clear. Thank you!
Thanks for excellent video
Loved it.depicted anatomy in such a nice way
Thanks!
Thank you so much for this video!
Pls do one class for mri spine and musculoskeletal system thank u in advance
thank you
Great series, Dr. Wu.
Thank u sir you are best teacher 💐💐💐
amazing lecture. Thanks a lot
Thanks for your wonderful lecture.
Excellent for neurointensivist!!!
this is so good. please consider doing search patterns for MRI neck, internal auditory canal, and spine as well!
Excellent class thank u sooo much sir
Awesome video. 10/10, thank you.
Super nice many thanks
Thanks a lot for such a useful lecture!
Just watching out of curiosity as a layman. How is it even possible for a doctor to remember so much !
An excellent lecture. Thank you.
thank you so much for the well detail cours
Thank you very much, excellent lecture
Another wonderful video. Thank you so much :)
Anytime
Excellent,Thanks
Thanks this was amazing!
Very informative
Thank you so much!!
Thank you !
Perfect!
Mickey with star ,is man of the match
Excellent
thank you so much ,sir ...
YW. I'm glad it's helpful.
I’m gonna name you, Johnny mnemonic!!!!
😂
Hello doctor again, can I ask whether brian tumor signal intensity exhibit by FLAIR, explain by just CSF TR/TE? or also the fluid speed(fast/slow flow fluid) ? For example, if a cystic lesion expressed hypodense on FLAIR and hyperdense on T2WI, does that just mean that the fluid TR/TE in cyst approximate that of CSF, or should we also considered the fluid flowing speed? thanks
@黃紹閔 Hi, sorry didn't catch your question earlier. If a cystic lesion is similar in signal to CSF (bright on T2 and dark on FLAIR), then yes, it has to do with its T2 property in that TR/TE is same or very similar to water, allowing it to have FLAIR signal suppression. It is not due to fast flow. In theory, if you have a FLAIR hyperintense fluid structure that is flowing rapidly (can't really think of a good example in pathology), then you can have loss of sign ("flow void) too and will appears dark on FLAIR sequence.
great. great. great
My MRI is for checking my ears, and balance glands and my seizure activity and any other abnormal spots
Always to worth to review.
Did anyone else notice that the list for "Beyond stroke" says Shitheads?🤣
What does slightly high t1 signal in globus pallidus extending to cerebral peduncles mean? Does anyone know? Does high t1 signal refer to a certain type of damage? Such as lesions or atrophy or hemorrhage or something else? I've tried to research but it seems to be kind of a broad term...as someone who knows nothing about this stuff
If you're referring to a normal MRI (17:14), that slightly brighter T1 signal in GP compared to the adjacent putamen is due to myelin. GP is more myelinated compared to relatively unmyelinated structure like putamen. Which is also why it looks darker on T2 (27:49), as well as GP looks more "pale" on gross anatomy specimen compare to putamen, I believe. If it's a lot brighter, then it is probably pathologic, or due to increased calcification / mineralization deposition.
@@neuroradish Thank you for responding! It was a normal T1-weighted MRI without contrast...I hope I'm saying that right haha. So if GP is already myelinated but the MRI found that it is a "higher t1 signal" than normal range or whatever. Does that mean MORE myelination?
The reason I ask is because my neurologist had ordered the MRI due to her suspecting MS. But that's DE-myelination as far as I understand. So that would be like the opposite, it sounds like.
Gold right here
Excelent !!!!!
Very thanks for your video, I have the MRI physics of T1,T2... perfectly through your lectures. Can I ask doctor do you recommend any video or books have lecture on MRI and CT of neck? Thanks.
If you drink a lot of something, it does look like a Mickey Mouse 😅😅
I like the Sh*t heads acronym :)
I'm pretty sure it was just a coincidence, but they're definitely bad diseases. You know, bad stuff.
Lmao shitheads. Love it💀🤣
Thank you