Story perspectives

New MRI and Digital Tests Revolutionize Alzheimer's Detection

9/16/2025

Summary

Story summary

A study from the Kennedy Krieger Institute shows that Quantitative Susceptibility Mapping (QSM) MRI can detect early brain iron levels associated with cognitive decline, potentially predicting Alzheimer's onset before symptoms arise.
QSM MRI is available in many hospitals, aiding clinical trials for preventative treatments.
A Swedish study in *Nature Medicine* introduced the BioCog digital test, achieving 85% accuracy in detecting cognitive impairment, surpassing traditional methods.
Combining BioCog with a tau protein blood test raised diagnostic accuracy to 90%, improving Alzheimer’s patient identification in primary care.
The BioCog test is designed for real-world use, with ongoing translations and assessments for long-term effectiveness in healthcare systems.

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Story summary

A study from the Kennedy Krieger Institute shows that Quantitative Susceptibility Mapping (QSM) MRI can detect early brain iron levels associated with cognitive decline, potentially predicting Alzheimer's onset before symptoms arise.
QSM MRI is available in many hospitals, aiding clinical trials for preventative treatments.
A Swedish study in *Nature Medicine* introduced the BioCog digital test, achieving 85% accuracy in detecting cognitive impairment, surpassing traditional methods.
Combining BioCog with a tau protein blood test raised diagnostic accuracy to 90%, improving Alzheimer’s patient identification in primary care.
The BioCog test is designed for real-world use, with ongoing translations and assessments for long-term effectiveness in healthcare systems.