An fMRI approach to assess intracranial arterial-to-venous cardiac pulse delay in aging.

The distribution of voxel-wise pulse delay in the arteries did not show a strong trend with age ( Supplemental Fig. 6 ). 3.4 Scan measurements were reproducible The scan-specific measures were reproducible, including A-V delay, heart rate, artery segmentation volume, and SSS segmentation volume ( Fig. 4 ).

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