Impact of Inadequate Axial Sampling on Axial Resolution Measurement
| Axial position | FWHM (mm) | ||
|---|---|---|---|
| Meas. 1 | Meas. 2 | ||
| A | 8.3 | 6.8 | |
| B | 8.5 | 7.8 | |
| C | 6.1 | 6.5 | |
| D | 6.0 | 6.2 | |
| Average (A, B) | 8.4 | 7.3 | |
| Average (C, D) | 6.05 | 6.35 | |
| Average (A, B, C, D) | 7.2 ± 1.4 | 6.8 ± 0.7 | |
Results from 2 separate measurements (Meas. 1 and Meas. 2), taken on GE Advance scanner in 3D acquisition mode, are shown. Axial position A was at center of axial FOV, whereas position B was ¼ of axial FOV from center. Positions C and D were ½ slice separation from positions A and B, respectively.