Positron emission tomography (PET) scan



PET scan of the brain for depression

By Mayo Clinic staff
Original Article:  http://www.mayoclinic.com/health/medical/IM00356
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PET scan of the brain for depression

Images of PET scans showing normal brain activity (right) and reduced brain activity due to depression (left)

A PET scan can compare brain activity during periods of depression (left) with normal brain activity (right). An increase of blue and green colors, along with decreased white and yellow areas, shows decreased brain activity due to depression.
IM00356

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