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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.
Post Reply RetroFed Forum Forum Index » Neuroscience
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Thalamus lemmy.world thalamus@lemmy.world
Joined: 2023-07-13
Quote

Link: https://en.wikipedia.org/wiki/Pneumoencephalography

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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