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Zusammenfassung:
Beta-amyloid (Aβ) plaques are characteristic of Alzheimer’s Disease (AD) brain and cause effects which can be detected by QSM. It has been shown that cortical plaque-load could be used to distinguish AD patients from healthy controls (HC) using ultra-high spatial resolution QSM at ultra-high-field (9.4 and 14.1T), in-vivo and ex-vivo. We aimed to extend these observations to a larger cohort of patients and controls at two different spatial resolutions. We found a significative (p<0.05) increase in plaque-load in AD compared to HC at both resolutions. Interestingly, some cortical regions also showed greater (p<0.05) diamagnetic effects in AD compared to HC.
