Table 2.
Signal intensity, signal-to-noise ratio, and voxel displacement in regions of interest
| Phantom | Phantom+EEG | Phantom+EEG+TMS | |
|---|---|---|---|
| Mean ROI Signal Intensity (SD) | |||
| ROIvertex | 81.2 (2.6) | 148.2 (12.3) | 114.6 (21.5) |
| ROIcenter | 172.5 (3.5) | 163.8 (4.1) | 158.1 (3.5) |
| ROIair | 1.4 (0.8) | 1.2 (0.8) | 1.2 (0.8) |
| Signal-to-Noise Ratio | |||
| ROIvertex | 66.5 | 121.4 | 93.9 |
| ROIcenter | 141.2 | 134.1 | 129.4 |
| Estimated Voxel Displacements | |||
| Mean | −0.02 | 0.01 | −0.04 |
| SD | 0.24 | 0.32 | 0.51 |
| Min. | −1.99 | −2.78 | −4.31 |
| Max. | 0.92 | 1.94 | 3.35 |
Top rows: mean signal intensity (and SD) across the vertex, center, and air regions of interest (ROIs; see Fig. 1) in the 3 different setups. Middle rows: signal-to-noise ratio in the vertex and center ROIs (rows) across the 3 different setups (columns). Bottom rows: mean and range of the voxel displacements across all slices estimated by the B0 inhomogeneity correction procedure. Min., minimum; Max., maximum.