Steve Gets a Brain Scan (HD) | A film by the Wellcome Trust

[keebaman]

i wish to have a brain scan but i have teeth fillings though. would that be dangerous?

[nemesisz69]

@keebaman not at all.

[nemesisz69]

@keebaman well i just had one. with a 1.3 tesla mri machine. and i have a filling.

[koonlisi]

good video.

thanx

[longtalker]

Nice film! Are the screenshots at around 3:47 of an MRI or fMRI scan? Or can both be produced from the same data? Thanks!

[wellcometrust]

Good question, longtalker.

What you're looking at is an MRI scan.

The MRI scan creates a 3D image of the brain (or whatever it's targetting) at a fixed point in time.

A functional scan is different because it follows changes in blood flow (increased flow being indicative of increased activity) over time.

So, for example, a scientist can see - in real time - which regions of the brain demand more oxygen when a volunteer does mental addition.

[longtalker]

I see, many thanks for your reply!

[therealdealdoc]

Always wondered how the MRI worked - great film

[enneagram]

Wonderfully shot video and very interesting piece.