Tuesday, September 11, 2007

Testing Tommorow

I'm getting a PET Scan and EEG test done tomorrow at Baptist Medical Center at their Epilepsy Monitoring Unit. I've never had a Positron Emission Tomography scan before, but as I understand it, they pump some radioactive stuff in your body and then use a detector to determine where it went... well, it is a bit more complex than that, so here is some info off a Radiology site.
Before the examination begins, a radioactive substance is produced in a machine called a cyclotron and attached, or tagged, to a natural body compound, most commonly glucose, but sometimes water or ammonia. Once this substance is administered to the patient, the radioactivity localizes in the appropriate areas of the body and is detected by the PET scanner.

Different colors or degrees of brightness on a PET image represent different levels of tissue or organ function. For example, because healthy tissue uses glucose for energy, it accumulates some of the tagged glucose, which will show up on the PET images. However, cancerous tissue, which uses more glucose than normal tissue, will accumulate more of the substance and appear brighter than normal tissue on the PET images.

I'll post more tomorrow. Hopefully with some pictures!

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