Fig. 3: MPI signal quantification of Fiducial 3 (F3, 160 µg/ml) for various target Fe concentrations, distances, and scan modes.
From: Spillover can limit accurate signal quantification in MPI
a MPI signals of four vials (V1–V4) for the F3 set obtained with the four different scan modes (M1–4). MPI signal of F3 for different distances (D1–D4) from the target (T), with target Fe concentrations of b 200 µg/ml, c 400 µg/ml, and d 800 µg/ml. Numbers represent the measured signal intensity for each tube. The values of TFCR featured in b–d are 1.25:1, 2.5:1, and 5:1, respectively. Numbers represent the mean value ± standard deviation of each hotspot/annotation. Empty dashed circles represent the location of the tubes without apparent MPI. M1 = standard; M2 = high resolution; M3 = high sensitivity; and M4 = high concentration mode. D1 = 10, D2 = 20, D3 = 30 and D4 = 40 mm.
