Brain plaque vs. Alzheimer's gene
Two tests are available to determine if you are at increased risk for getting Alzheimer’s disease: a test for a gene known as APOE4 and a brain imaging test called a PET scan. Research shows that the brain scan is a better predictor. High amounts of beta-amyloid or brain plaque on the scan indicate that the disease has already taken hold. PET scans can be valuable because they can help determine if dementia is due to Alzheimer’s disease.
To continue reading this article, you must log in.
Source matters. Subscribe to HarvardHealthOnline+ FREE for 30 days for unlimited access to the site – where all content is reviewed by an HMS physician or faculty expert.
With HHO+ you get these exclusive benefits:
- Unlimited access to all Harvard Health Online content
- 4 expertly curated newsletters delivered monthly
- Customized website experience aligned to your health goals
- In-depth health guides on topics like sleep, exercise, and more
- Interactive features like videos and quizzes
- Members-only access to exclusive articles and resources
SPECIAL OFFER! UNLOCK EXPERT ACCESS for 30 days FREE!
Already a member? Login ».
Disclaimer:
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
