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Table 1:  
Standardized neuroimaging protocol used in study
Pulse SequenceScan Parameters
T1WI 3-plane localizer
Sagittal T1WI, FSETR/TE: 600 ms/minimum; FOV: 250 mm; 352 × 256; ST/gap: 5/0 mm; NEX: 1; ETL: 2; full echo
Axial T1WI, FSETR/TE: 425/20 ms; FOV: 220 mm; 352 × 224; ST/gap: 5 mm/0; NEX: 1; ETL: 2; full echo
Axial T2WI FLAIRTR/TE: 9600/140 ms; FOV: 220 mm; 352 × 224; ST/gap: 5 mm/0; NEX: 1; full echo
Axial GRETR/TE: 635 ms/minimum; FOV: 220 mm; 320 × 224; ST/gap: 5 mm/0; NEX: 1; flip angle: 20o; full echo
Axial DWI, EPITR/TE: 8200 ms/minimum; FOV: 220 mm; 128 × 128; ST/gap: 5 mm/0; NEX: 1; no. of shots: 1; full echo
Axial T2WI FSETR/TE: 3167/85 ms; FOV: 220 mm; 416 × 256; ST/gap: 5 mm/0; NEX: 2; ETL: 23
Axial T1WI FSE, postcontrastTR/TE: 425/20 ms; FOV: 220 mm; 352 × 224; ST/gap: 5 mm/0; NEX: 1; ETL: 2; full echo
Sagittal 3D spoiled GRE (BRAVO), postcontrastTR/TE/TI: 450 ms/minimum/450 ms; FOV: 307 mm; 256 × 256 × 136; ST: 1.2 mm; NEX: 1; flip angle: 15o
Dynamic contrast-enhanced perfusion MRI, gradient-echo EPITR/TE: 2000 ms/minimum; FOV: 240 mm; 129 × 96; ST/gap: 5 mm/0; NEX: 1; no. of shots: 1; flip angle: 60o
Axial multisection 1H-MRSTR/TE: 2300/280 ms; FOV: 240 mm; 20 × 20; ST/gap: 15/3.5 mm; NEX: 1; 4 sections, interleaved.
  • 

    Note:—ETL indicates echo-train length; GRE, gradient-recalled echo; ST, section thickness.