TIL before CT and MRI’s were available, doctors used to replace the fluid in and around the brain with air to do imaging with X-rays. (en.wikipedia.org)

submitted 1 year ago by thalamus@lemmy.world to c/science@lemmy.world

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cross-posted from: https://lemmy.world/post/1779005

Apparently this was done because air captures less X-rays than CSF and thus creates more contrast with brain tissue compared to the cerebrospinal fluid.

Unfortunately this was pretty painful and uncomfortable.

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[-] USSMojave@startrek.website 1 points 1 year ago* (last edited 1 year ago)

Everyone's experience is different. When I got an MRI scan I really did almost fall asleep. Yes it was loud but its rythmic tapping almost sounded like a song, and add the warm blanket on my legs I was sometimes almost nodding off (it was for a cognitive study so I had to stay awake)

this post was submitted on 20 Jul 2023

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