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Table 1 MRI protocol parameters for cohorts 1 and 2

From: Comparison of [18F]FDG PET/CT with magnetic resonance imaging for the assessment of human brown adipose tissue activity

Protocol name MR-protocol cohort 1 MR-protocol cohort 2
Description 3D volumetric 3D volumetric
Interpolated two point Interpolated multi-echo
Gradient-echo sequence Gradient-echo sequence
Echo times (ms) TE1 = 1.1 (out-of-phase), TE2 = 2.2 (in-phase) TE1 = 1.09, TE2 = 3.19, TE3 = 5.29, TE4 = 7.39, TE5 = 9.49, TE6 = 11.59
Repetition time (ms) 4 13.5
Flip angle (°) 5 6
Field of view (mm) 500 × 500 256 (read) × 384 (phase)
Image size (voxels) 256 × 256 × 256 192 × 288 × 72
Voxel size (mm) 2.0 × 2.0 × 2.6 1.3 × 1.3 × 1.3
Slice thickness (mm) 2.6 1.3
Field of view phase direction (%) 75 150
Pixel bandwidth (Hz/Px) 1302 810
Slices per slab 120 (per bed position) 72
Acquisition time (min) 0:18 (per bed position) 6:26