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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/neuro@lemmy.world
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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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[-] SSUPII@sopuli.xyz 1 points 1 year ago

Not also very dangerous?

this post was submitted on 19 Jul 2023
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