Results tagged “MRI” from kwc blog

Brain scanned

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I had an fMRI brain scan tonight. The computer scanned me doing several rounds of simple addition and subtraction and was about to move onto a more complex series of problems, at which point it crashed. First, it refused to show me the actual problems -- they were appearing almost fully offscreen. Then it start to flash alternating black and white screens at me while the MRI machine buzzed away. The experimenters were forced to shut it down and only showed me Spongebob thereafter. I think it was afraid.

Say hello to my lumbar spine

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spineGot a bunch of MRIs from 1999 in the mail today. I was going to scan a bunch of them in, but after my first attempt I decided that I'll stop with this one as the scanner has a lot of trouble with the film.

MRIs work by knocking around hydrogen and measuring their spin. In effect, then, what you see with an MRI is water content, which is good for imaging the body, as we're so full of water. The whiter something is, the more water imbued it is.

This image shows my lumbar spine. The spinal column is the long white thing on the right and the horizontal pancakes are the discs. There's two things you can kinda notice in this. First, right before the spinal column hooks off to the right, there's three bumps in it where the discs are intruding. You'll also notice that those three discs are darker that the ones above them; hence, they have less water. The three discs were "fixed" in 1999, but the bottom of the three is the one that's been giving me trouble again.