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PET scans and memory tests best predict Alzheimer's

by Brendon Nafziger, DOTmed News Associate Editor | July 02, 2010
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While cognitive paper-based tests might be cheaper, Landau believes they're still hobbled by their subjectivity.

"The problem with cognitive tests is their variability," she said. "Is someone tired that day? Perhaps the person administering the test didn't speak clearly. With neuroimaging the hope is these markers would be more reliable and more objective."

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