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Table 1 Overview of MRI sequences and scan parameters

From: Simultaneous in vivo PET/MRI using fluorine-18 labeled Fe3O4@Al(OH)3 nanoparticles: comparison of nanoparticle and nanoparticle-labeled stem cell distribution

  3D T2-weighted 3D DCE T2 map
Sequence RARE FLASH MSME
Effective echo time 26 ms 4 ms 8–64 ms with 8 ms increments
Repetition time 500 ms 20 ms 1800 ms
Rare factor 8 - -
Averages 1 1 2
Number of repetitions 1 20 1
Flip angle - 30° -
Frame period - 60.33 s -
Matrix 150 × 350 × 128 128 × 256 × 45 192 × 128
Field of view 35 mm × 80 mm × 30 mm 35 mm × 80 mm × 30 mm 42 mm × 30 mm
Slices - - Axial slice orientation
2 intercalated slice packages
8 slices of 1 mm in each package
1 mm slice gap
Respiration-gated No No Yes
Scan time 13.5 min 20.07 min 11.52 min + time for gating
  1. 3D Three dimensional, DCE Dynamic contrast enhanced, RARE Rapid acquisition with refocused echoes, FLASH Fast low angle shot, MSME Multi slice multi echo