PET Scans and Dementia

Did you know that PET scan software can compare a scan of activity levels in a patient's brain against a database of previous cases? Findings reported at the Turku PET Symposium in Finland: by identifying the rate at which the brain takes up a radioactive glucose substitute, the system interpreted scans from 83 patients with 98% accuracy. This may help to distinguish reliably between different forms of dementia at an early stage. (http://www.newscientist.com/article/mg20026806.000-scanner-reads-minds-to-spot-early-signs-of-dementia.html)