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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)

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Thalamus@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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Lakes@lemmy.world
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I have to get an MRI every 6 months. This would be worse than my disease!

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