Dr Peter Wothers - Using Xenon to Image Living Lungs

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11 жыл бұрын

For the final film in our advent series, the 2012 Christmas Lecturer, Dr Peter Wothers, travels to the Sheffield University MRI Unit at the Royal Hallamshire Hospital to explore how the strange properties of his favourite chemical element are being used to image living lungs.
In the build up to this year's Christmas Lectures, we've published a new video for every day of advent revealing the elements that really excite and inspire people.
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Пікірлер: 20

@TheRoyalInstitution 11 жыл бұрын

Although Xenon is an asphyxiant it does interestingly have anaesthetic properties which is due to the fact that it's an NMDA receptor antagonist. It is therefore a dissociative anaesthesia.

@tomcollproductions 11 жыл бұрын

Wow this is a good one! Nothing better than testing the element on the lecturer!

@TheRoyalInstitution 11 жыл бұрын

They'll appear on the Ri Channel (google: Ri Channel) website to stream in about a weeks time! If you follow our twitter (@ri_science) we'll announce when they're up!

@WilbertKiemeneij 11 жыл бұрын

Thanks, I can't wait!

@MLiljeroth 11 жыл бұрын

The signal is generated from the movement of nuclear spins caused by the application of an RF pulse. Once Xenon dissolves in the blood it will require an RF pulse of a different frequency. You'd have to switch resonance frequencies to see xenon dissolved in blood (unless you've got an insanely large bandwidth)

@jhoughjr1 5 жыл бұрын

Why the lead apron over the imaging area?

@AlexanderH007 Ай бұрын

You should have used radioactive Xenon which is what they use in Nuclear Medicine Lung Ventilation studies.

@WilbertKiemeneij 11 жыл бұрын

Can anyone tell me when the lectures are going to be available online? I couldn't watch them here in the Netherlands, and I'm really curious...

@didaloca 11 жыл бұрын

If Xenon can cross into the bloodstream (as he said before, it is a slight anesthetic) , then why can't you see any blood vessels? I'm assuming that not enough transfers to see it.

@EDUARDO12348 11 жыл бұрын

Ok I did it, how does Xenon leave the body? lol seriously

@GregSamsa999 11 жыл бұрын

I´m sorry, you just made a mistake of Noble magnitude.

@thatplane3865 7 жыл бұрын

Mariano Cepeda hahahahaha but xenon is fine to inhale but great joke

@MPOTW 11 жыл бұрын

Sheffield University deliberatly intoxicating Peter Wothers so Cambridge's Chemistry department is hindered

@cesarfiladelfo 11 жыл бұрын

Probably isn't because of xenon, but the lack of oxygen to the brain causes the nervous system effect. And thinking about gases in the bloodstream, they must be dissolved, and this could change the physicochemical properties that are needed for the signaling on the MRI-scan.

@walterdennisclark 11 жыл бұрын

That is the least scientific video I have ever seen. What is hyper polarized? How does MRI work? Why does Xe glow? Why does hydrogen glow when Xe doesn't Why is Xe his favorite? Because it is used in MRI. That's a pretty dumb reason. It doesn't take much to be a scientist in England I guess.