‘White matter lesion’ mapping tool identifies early signs of dementia — ScienceDaily

A new tool for analyzing tissue damage seen on MRI brain scans can detect with more than 70 percent accuracy early signs of cognitive decline, new research shows.

The findings by imaging specialists at NYU Grossman School of Medicine center on small bright spots on scans called white matter hyperintensities. Increased numbers and size of the intense-white spots seen on the mostly gray images of the brain have long been linked to memory loss and emotional problems, especially as people age.

More spots on MRI and their occurrence in the center of the brain have also been shown to correlate with the worsening of dementia and other brain-damaging conditions, such as stroke and depression, say the study authors. The spots represent fluid-filled holes in the brain, lesions that are believed to develop from the breakdown of blood vessels that nourish nerve cells.

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