Brain Scan Estimates Time Until Dementia Symptoms Appear

Brain Scan Estimates Time Until Dementia Symptoms Appear
(AP Photo/Gerald Herbert)

Researchers at Washington University School of Medicine in St. Louis have developed an approach to estimating when a person who is likely to develop Alzheimer’s disease, but has no cognitive symptoms, will start showing signs of Alzheimer’s dementia.

The algorithm, available online in the journal Neurology, uses data from a kind of brain scan known as amyloid positron emission tomography (PET) to gauge brain levels of the key Alzheimer’s protein amyloid beta.

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