Courtesy of Intermountain Medical Imaging, Boise,
Figure 1 is a PET scan that shows normal activity in a healthy
brain. Figure 2 is a PET scan of a brain in a person with Alzheimer's disease.
The gray area outlined on Figure 2 shows lower levels of brain activity.
ByHealthwise Staff Primary Medical ReviewerAdam Husney, MD - Family Medicine Specialist Medical ReviewerHoward Schaff, MD - Diagnostic Radiology