Left, T1 spin-echo image at 1

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Left, T1 spin-echo image at 1 Left, T1 spin-echo image at 1.5T (TR, 600 ms; TE, 14 ms; bandwidth, 90 Hz/pixel; section thickness, 5 mm; matrix, 256 × 192; FOV, 220 × 220 mm2; flip angle, 90°). Left, T1 spin-echo image at 1.5T (TR, 600 ms; TE, 14 ms; bandwidth, 90 Hz/pixel; section thickness, 5 mm; matrix, 256 × 192; FOV, 220 × 220 mm2; flip angle, 90°). Right, T1 spin-echo at 3T (TR, 700 ms; TE, 10 ms; section thickness, 5 mm; 19 sections; bandwidth, 200 Hz/pixel; matrix, 256 × 192; FOV, 220 × 220 mm2; flip angle, 90°), which is indicative of the reduced gray-to-white matter contrast at higher fields. Bernd L. Schmitz et al. AJNR Am J Neuroradiol 2005;26:2229-2237 ©2005 by American Society of Neuroradiology