# Amyloid PET

Source: https://onco.cc/technologies/da-tech-amyloid-pet/  
OnCo record `da-tech-amyloid-pet` (Technology). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Amyloid PET is a scan that can show whether amyloid plaques are present. It is used when the result will change care, not as a screening test.

## Summary

Amyloid PET supports biological Alzheimer’s disease. A negative scan makes typical Alzheimer’s disease unlikely. A positive scan does not by itself mean dementia or that an antibody is appropriate.

## Fields

- Kind: Technology
- Last checked: 2026-09-21
- Tags: dementia-atlas
- Principle: A tracer binds amyloid plaques so a PET scanner can show cortical uptake.
- Strengths: Can confirm or reduce the likelihood of amyloid pathology.
- Limitations: Access, cost, and radiation. Does not stage dementia on its own.

## Sources

- NIA: https://www.nia.nih.gov/health/alzheimers-and-dementia

## Connected records

- diagnoses: [Alzheimer’s disease](https://onco.cc/diagnoses/alzheimers-disease/)
- fronts: [Imaging](https://onco.cc/fronts/da-front-imaging/)
- terms: [Amyloid PET](https://onco.cc/terms/da-term-amyloid-pet/)

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