Diffusion Weighted Imaging

Describes the MRI technique of Diffusion Weighted Imaging or DWI

[Docan]

best videos ever on MRI. pls post some more especially principles of MR angiography (Time od flight, phase contrast). thank u so much.

[drkodesashanka]

Best video available on YouTube regarding MRI basics and dwi ..gr8 way of demonstrating the concept

[marcosbravo]

As and an MRI tech you explained it very well Dr

[basilal]

We need more please, I highly appreciate this massive work.

[anjanikumargolla]

even though its a complex concept, your explanation has made it crystal clear... thanks a lot

[onetwoBias]

Man this video really cleared things up for me regarding the difference between DWI and ADC, and why discrepancies between them is important. I just couldn't understand what the difference was before!

[mandolinic]

I find your images showing precessing neutrons much easier to understand than most other videos I've seen.

[tonenoob]

This is so helpful! Thanks. I'm taking some MRI grad classes, and these videos definitely help to solidify key ideas before heading into a lecture that would otherwise totally baffle me. I will confess, though, that I find the music throughout a bit distracting.

Anyway -- thanks for the time and effort you put into this! It is a massive help.

[mehmetnevzatcizmeci]

The best explanation of diffusion tensor imaging I have seen. Thanks for preparing this elegant video.

[HawtStyle]

This is the best video covering diffusion that I've seen on youtube!

[anvit]

Best video on mri I have seen till date...

[basilal]

Many thanks to you John and the all guys that made this precious video.

[zzz]

best video about DWI, helpful for every grade of knowlege in MRI.

[luigibonini]

Thanks for the video! I just add this explanation of why infarct appears as a decreased ADC and increased signal in DWI:
"In the setting of acute cerebral ischemia, if the cerebral blood flow is lowered to 10 ml/100gm/min, the cell membrane ion pump fails and excess sodium enters the cell, which is followed by a net movement of water from the extracellular to intracellular compartment and cytotoxic edema. Diffusion of the intracellular water molecules is restricted by the cell membranes. The restricted diffusion results in a decreased ADC and increased signal intensity on diffusion-weighted images."

[looktarn]

This is very nice video. It make me understand more about these MRI sequences. Thank you very much!!

[OmegaPsiPhi]

That is out of this world 😍 got to love particle physics xxx

[Simonjose]

After watching MANY videos on the subject, this is the first one to mention the three cartésien plains. The whole time I'm thinking "How the heck do they get an image out of that!? In 3-D no less!" Now it's starting to make a little more sense.

[Moni-wqyt]

This video is GREAT!!!! Thank you for your valuable work!!!!

[buttman]

Well laid out, very concise, and nice summary of the important points to bring it home

[MrDriveG]

This was like an epiphany to me. Thank you so much