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Table 1 Parameters of the used MRI sequences of the studied patients (n = 26)

From: Arterial spin-labelling and magnetic resonance spectroscopy as imaging biomarkers for detection of epileptogenic zone in non-lesional focal impaired awareness epilepsy

MRI sequences T1WTSE T2WTSE FLAIR PDWTSE T2*W-GRE DWI and ADC Volumetric 3D SPGR T1WI
Type of scan TSE TSE IR-TSE TSE GRE SENSE-SSh-EPI + SPAIR 3D SPGR
Imaging plane Axial, sagittal and coronal axial, sagittal and oblique coronal axial, sagittal and oblique coronal axial, sagittal and oblique coronal Axial and oblique coronal Axial Axial, sagittal and coronal
TR/TE (msec.) 400–460/4.6–10 3000/80 11000/120 2000/20 3500/30 12000/82 4264/70
TI (msec.) 2300
NEX 2 3 1 1 2 2 1
FOV (mm3) 200 × 230 × 150 220 × 220 × 150 220 × 220 × 150 220 × 220 × 150 220 × 220 × 150 220 × 220 × 150 240 × 240 × 150
ST (mm) 3 3 2 2 2 1 1.5
Flip angle (°) 20 20 90 90 90 90 90
b value (s/mm2) 0 0 0 0 0 100-1000 0
Intersection gap (mm) 0 0 0 0 0 0 0
Matrix 320 × 320 320 × 320 320 × 320 320 × 320 256 × 256 256 × 256 256 × 256
Acquired voxel size (mm3) 1.00 × 1.26 × 3.0 1.00 × 1.42 × 3.0 0.75 × 0.81 × 5 0.75 × 0.81 × 5 0.9 × 1.52 × 5.0 1.49  × 1.50 ×  3.0 0.75 × 0.81 × 5
Scan time (min) 5–6 6–7 6–7 6–7 6–7 6–7 6–7
  1. T1W T1-weighted, T2W T2-weighted, TSE turbo spin-echo, min minutes, T1WTSE T1-weighted turbo spin-echo, T2WFSE T2-weighted fast spin-echo, FLAIR fluid attenuation inversion recovery, IR-TSE inversion recovery-turbo spin echo, PDWTSE proton density-weighted turbo spin echo, 3D SPGR T1WI three-dimensional spoiled gradient echo T1WI, T2*-GRE T2*-weighted gradient recalled echo, DWI diffusion-weighted image, SENSE-SSh-EPI sensitivity encoding single shot-echo planar imaging, STIR short tau inversion recovery, TR/TE repetition time/echo time, mm3 cubic millimetres, msec milliseconds, NEX number of excitations, FOV field of view, (°) degrees, s/mm2 seconds/square millimetres, mm millimetres, min minutes, ST slice thickness