nikography asked: hi, in this post: "neurosciencestuff-a-ct-scanner-uses-radiation" of yours, there is a very angry boy on the internet who thinks the top image is NOT a CT scanner, but an MRI instead. can you clear this up and explain? thanks.
The top image is an MRI scanner. It uses magnetic fields and is essentially a giant coil. The patient is likely about to get a brain scan (awesome).
The bottom image, however, is a CT scanner which uses X-Ray machines and receivers to accomplish a similar goal of looking within the human body.
The major difference is the CT scanner has to spin rapidly to produce a picture. Here’s a video of that happening:
Crazy stuff, right?
They are not the same machine, but I can see the confusion for neurosciencestuff as they are both doughnut-shaped scanning machines…
Thanks for asking for clarification!
As an aside, I now know more about medical scanning equipment than I ever thought I would need to. I love this job.
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