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. 2020 Sep 24;10:15623. doi: 10.1038/s41598-020-72492-8

Figure 1.

Figure 1

Comparisons between the true values of [NAD+], [NADH] and their ratio (RR) in the phantom and those experimentally measured by 31P MRS with least square fitting (blue rounds and lines) and the LCModel (red triangles and dots). The linear slope (s) and regression coefficient (R2) were 0.94 and 0.98 for NAD+ with least square fit and 0.90 and 0.97 with LCModel; 1.12 and 1.00 for NADH with least square fit and 0.96 and 1.00 for NADH with LCModel; 1.12 and 1.00 for RR with least square fit, and 0.99 and 0.98 with LCModel, respectively.