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- W4293707239 abstract "Abstract In Alzheimer’s disease, the molecular pathogenesis of the extracellular Aβ-amyloid (Aβ) instigation of intracellular tau accumulation is poorly understood. We employed a high-resolution PET scanner, with low detection thresholds, to examine the Aβ-tau association using a convolutional neural network (CNN), and compared results to a standard voxel-wise linear analysis. The full range of Aβ Centiloid values was highly predicted by the tau topography using the CNN (training R 2 = 0.86, validation R 2 = 0.75, testing R 2 = 0.72). Linear models based on tau-SUVR identified widespread positive correlations between tau accumulation and Aβ burden throughout the brain. In contrast, CNN analysis identified focal clusters in the bilateral medial temporal lobes, frontal lobes, precuneus, postcentral gyrus and middle cingulate. At low Aβ levels, information from the middle cingulate, frontal lobe and precuneus regions was more predictive of Aβ burden, while at high Aβ levels, the medial temporal regions were more predictive of Aβ burden. The data-driven CNN approach revealed new associations between tau topography and Aβ burden." @default.
- W4293707239 created "2022-08-31" @default.
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- W4293707239 date "2022-08-30" @default.
- W4293707239 modified "2023-09-25" @default.
- W4293707239 title "Mapping the association between tau-PET and Aβ-amyloid-PET using deep learning" @default.
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- W4293707239 doi "https://doi.org/10.1038/s41598-022-18963-6" @default.
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