A new test can predict dementia up to nine years before diagnosis with 80% accuracy by analyzing brain network connections in the idle mode. This method is more effective than memory tests or brain shrinkage measurements.
Key Points
Analyzing brain network connections in idle mode
Better than memory tests or brain shrinkage measurements
Model predicted future dementia diagnoses with high accuracy
Pros
Can predict dementia up to nine years before diagnosis with 80% accuracy
Identifies people at risk of dementia before symptoms show
May lead to early treatment to prevent irreversible brain cell loss
Cons
Need for more studies involving diverse groups of people to fully understand benefits and limitations of the MRI scan as a diagnostic tool