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. 2017 Nov 28;80(1):137–146. doi: 10.1002/mrm.27012

Figure 3.

Figure 3

(a) Contrast between grey and white matter in steady‐state gradient echo as a function of TR and flip angle α. The dash line represents the optimal settings for SNR using the Ernst angle formula. (b) MP‐RAGE contrast simulations. In blue, contrast between grey and white matter as a function of the inversion time TI (quantity evaluated at k = 0). In green and yellow: same quantity using TS values of 8470 and 3630 ms. (c) Evolution of the longitudinal magnetization for grey (blue), white (green) matter, and CSF (yellow) for 2D MP‐RAGE against a readout formed by 113 phase encodes, TR of 10 ms, and flip angle of 15 °. TI = 2500 ms and TS is approaching infinity.