Skip to main content

Table 2 Magnetic resonance imaging (MRI) parameters of the sequences used in the study

From: Substantial and reversible brain gray matter reduction but no acute brain lesions in ultramarathon runners: experience from the TransEurope-FootRace Project

Sequence parameters MPRAGE DWI EPI FLAIR
TR (repetition time, ms) 2,100 3,700 9,000
TE (echo time, ms) 4.8 98 120
TI (inversion time, ms) 1,060 - 2,500
FA (flip angle, °) 15 90 150
NA (no. of acquisitions) 1 2 1
ETL (echo train length) - - 21
Bandwidth (Hz/voxel) 139 1,000 150
Slice thickness (mm) 1 5 5
Orientation Sagittal Transversal Coronal
Matrix (interpolated from) 240 × 256 128 × 128 384 × 384 (187 × 187)
FOV (field of view, mm) 240 × 256 230 × 230 172 × 230
TA (time of acquisition) 8 min 25 s 1 min 4 s 2 min 24 s
  1. Magnetization prepared rapid acquisition gradient echo (MPRAGE), diffusion-weighted echoplanar imaging (DWI EPI) and fluid attenuated inversion recovery (FLAIR) were used.