Photon transport through the entire adult human head
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Photon transport through the entire adult human head
1–10 of 29 posts
Re: Photon transport through the entire adult human head
#2Is this likely to be less risk than xray or nmr mri for comparable imaging quality?
Re: Photon transport through the entire adult human head
#3Clicked it because I thought they teleported a photon through a head.
Re: Photon transport through the entire adult human head
#4Is this likely to be less risk than xray or nmr mri for comparable imaging quality?
This will probably never get the image quality of either of those. The image quality you get is proportional to the density of the detecting elements. These types of infrared methods usually have to touch the skin, so you would need a flexible array of detectors and your not going to get the same quality with that.
Re: Photon transport through the entire adult human head
#5This only works on white patients, so if it actually becomes clinically useful it will be pretty controversial.
Re: Photon transport through the entire adult human head
#6Is this likely to be less risk than xray or nmr mri for comparable imaging quality?
Yes, less risk, but the image quality is non-existent - at least as of right now.
Re: Photon transport through the entire adult human head
#7In case anyone is wondering why (from the paper):
Photons measured in this regime explore regions of the brain currently inaccessible with noninvasive optical brain imaging.
Re: Photon transport through the entire adult human head
#8I can't figure out how they would collect depth information from the resulting photon pattern.
I believe reflected photons are much more useful, by measuring how long in between signal and response you can get flight time which tells you depth. Of course I have no idea if infrared light reflects on anything in the brain.
Re: Photon transport through the entire adult human head
#9Is this likely to be less risk than xray or nmr mri for comparable imaging quality?
This will probably never get the image quality of either of those. The image quality you get is proportional to the density of the detecting elements. These types of infrared methods usually have to touch the skin, so you would need a flexible array of detectors and your not going to get the same quality with that.
You could solve that by scanning across the skin, and immersing the side of the head and the detector in some kind of fluid that helps light transmission (avoids reflections on the skin), so you don't actually have to touch the skin.
Re: Photon transport through the entire adult human head
#10Earlier quoted context omitted.
This will probably never get the image quality of either of those. The image quality you get is proportional to the density of the detecting elements. These types of infrared methods usually have to touch the skin, so you would need a flexible array of detectors and your not going to get the same quality with that.
You could solve that by scanning across the skin, and immersing the side of the head and the detector in some kind of fluid that helps light transmission (avoids reflections on the skin), so you don't actually have to touch the skin.
inserting a medical light bulb in the pattients mouth will decrease the distance the light has to travel, and presumably it could be a high intensity "flash" tuned to conditions with very precisely known timing