Brain scans (FDG PET) used in the diagnosis of Alzheimer's disease. The scans show a healthy brain, a brain with mild cognitive impairment and a brain with Alzheimer's disease. Areas that are black and blue represent healthy brain metabolism. Areas that are green, yellow and red represent worsening brain metabolism as the disease progresses.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press.
Make your tax-deductible gift and be a part of the cutting-edge research and care that's changing medicine.