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Table 2 Neuroimaging data acquisition parameters

From: Effects of spermidine supplementation on cognition and biomarkers in older adults with subjective cognitive decline (SmartAge)—study protocol for a randomized controlled trial

Sequence Main parameters [orientation, TR/TE/TI, FOV, slices, voxel size]
Structural sequences
 T1 MPRAGE Sagittal, TR/TE/TI = 1900/2.52/900 ms, 256 × 256 mm2, 192 slices, 1.0 × 1.0 × 1.0 mm3
 FLAIR Axial, TR/TE = 11,000/97 ms, 230 × 230 mm2, 50 slices, 1.2 × 1.2 × 2.5 mm3
 DTI Axial, TR/TE = 7500/86 ms, 220 × 220 mm2, 61 slices, 2.3 × 2.3 × 2.3 mm3, 64 directions (b = 1000)
 High-resolution hippocampus TSE Coronar, TR/TE = 8020/48 ms, 150 × 150mm2, 24 slices, 0.4 × 0.4 × 2.0 mm3
Functional sequences
 Resting-state fMRI Axial, TR/TE = 2300/30 ms, 192 × 192 mm2, 34 slices, 3.0 × 3.0 × 4.0 mm3
 Task-related fMRI Axial, TR/TE = 2000/30 ms, 192 × 192 mm2, 32 slices, 3.0 × 3.0 × 3.0 mm3
 pCASL Axial, TR/TE = 4300/19 ms, 192 × 192 mm2, 22 slices, 3.0 × 3.0 × 5.0 mm3, LD/PLD = 1.5/1.5 s
  1. Abbreviations: DTI diffusion tensor imaging, FLAIR fluid-attenuated inversion recovery, fMRI functional magnetic resonance imaging, FOV field of view, LD labeling duration, MPRAGE magnetization-prepared rapid acquisition gradient echo, pCASL pseudo-continuous arterial spin labeling, PLD post-label delay, TE echo time, TI inversion time, TR repetition time, TSE turbo spin echo