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Background and purpose
AV‐1451 (18F‐AV‐1451, flortaucipir) positron emission tomography was performed in C9orf72 expansion carriers to assess tau accumulation and disease manifestation.
Methods
Nine clinically characterized C9orf72 expansion carriers and 18 age‐ and gender‐ matched cognitively normal individuals were psychometrically evaluated and underwent tau positron emission tomography imaging...