Figure 1
a) Numerical simulation results for the effect of number of echo images on the precision of the quantifications for different signal-to-noise ratios. As the number of echoes increases, the precision gets better till it nearly saturates for number of echoes ≥ 10. b) Accuracy, precision and reproducibility of T2 mapping when using different number of echo images. With increasing the number of echoes, estimated T2 values changes significantly when using 2-pt fits, while it shows consistency when using the 3-pt fits regardless of the number of echoes used for the estimation. Both precision and reproducibility increases when using more echo images for the T2 estimation. However, and similar to what numerical simulations predicts, the effect nearly saturates for number of echoes ≥ 10.