Fig. 5
T1 and T2 relaxation times versus ingredients at 1.4 T: agarose and NiCl2. Grid represents results of the model. Red points represent single measurements. a Longitudinal relaxation time constant (T1), RMSE in R1 compared to the linear model was 4.8 × 10−5 /ms. b Spin–spin relaxation time (T2), RMSE in R2 compared to the linear model = 5.3 × 10−4 /ms. Since the x and y axes of both fits are comparable, the ingredient that contributes most can be identified. RMSE = root mean square error