Table 1:
Mean and peak displacement in an ROI of size 6 × 6 × 6 mm3, Euclidean distances to the centroid of the averaged fully-sampled reference, FWHMs in three dimensions of the two in vivo scans, Centroid distance to the reference, image SNR, displacement SNR and background displacement standard deviation.
(a) Measured displacements in neuromodulation experiments
| Fully-sampled | Retrospectively undersampled | Prospectively undersampled | |
|---|---|---|---|
| Mean displacement in 6 × 6 × 6 mm3 ROI (μm) | 2.72 ± 0.45 | 3.13 ± 0.44 | 2.52 ± 0.49 |
| Peak Displacement (μm) | 3.66 | 3.53 | 4.06 |
| FWHM in US-x (mm) | 14.00 | 13.07 | 15.19 |
| FWHM in US-y (mm) | 6.10 | 5.93 | 6.76 |
| FWHM in US-z (mm) | 7.33 | 6.73 | 7.85 |
| Centroid Distance (mm) | 0.42 | 0.85 | |
| Image SNR | 216.30 | 246.42 | 246.44 |
| Displacement SNR | 41.68 | 54.95 | 65.10 |
| Displacement standard deviation (μm) | 0.06 | 0.05 | 0.05 |