Figure 1.

A: The simulated region of interest (ROI_sim) was averaged over 20 × 20 × 20 mm³ simulated voxels of interest V_sim. B: Calculated crusher coil field B_spoil,z with I_spoil = 10 A for the crusher coil geometry shown in (A). C: Contour plot of the 15% residual signal S_r,sim above the crusher coil for different I_spoil×T_spoil. D: Simulated residual signal S_r,sim as a function of the height above the crusher coil for different I_spoil×T_spoil. For each I_spoil×T_spoil, the residual signal was averaged over the region −100 mm < z < 100 mm. The data of plot (D) are represented as intervoxel mean (solid line) ± intervoxel standard deviation (SD) (gray shade). The intervoxel variability is calculated at a specific height y. (B), (C), and (D) plots are zoomed to show only the region bounded by the red dashed line in (A).