MRI may help determine time of stroke onset

OAK BROOK, Ill. — Magnetic resonance imaging (MRI) of the brain could expand the number of stroke patients eligible for a potentially life-saving treatment, according to a new study, published online and in the December issue of the journal Radiol…

'White matter lesions' affect cognitive ability in elderly

Age-related changes in the brain — the appearance, starting around age 60, of “white-matter lesions” among the brain’s message-carrying axons — significantly affect cognitive function in old age. White-matter lesions are small bright patches that show up on magnetic resonance imaging (MRI) of the brain. What’s more, hypertension may account for some of this cognitive impact. A full report on these relationships appears in the March issue of Psychology and Aging, which is published by the American Psychological Association (APA).

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