Fig. 2.

(a) Examples of measured signal evolutions and their matched dictionary entries of different ROIs. (b) In vivo brain images of the same participant including reference ¹H GRE images, the ³¹P bSSFP-type images (sum along FA index) for PCr and ATP, the $k_{\text{CK}}$, $C_{\text{r}}$, $\text{Δ}{B}_0$ and $T_1^{\text{PCr}}$ maps. Colour map ranges are set according to the dictionary limits for $k_{\text{CK}}$, $\text{Δ}{B}_0$ and $T_1^{\text{PCr}}$. $C_{\text{r}}$ colour range limits were set to increase the visibility of gray and white matter differences.