Research Article
Novel Method to Improve the Uniformity of 7T Body MR Images
Table 2
Mean and standard deviation (SD) of 2D transverse magnetization (|
Mt| − 2D) within the cylindrical phantom in (Figures
2 and
4).
| | | Quad. driving | RF shimming (single mode) | RF shimming (multi-mode) | Region I (0−100 mm) | Region II (100−200 mm) | Region III (200−260 mm) | RSMR (combined) |
| | Mean |Mt|-2D (A/m) | 0.61 | 0.85 (39%) | 0.85 (39%) | 0.99 | 0.99 | 0.98 | 0.98 (61%) | | SD |Mt|-2D | 0.31 | 0.20 (35%) | 0.15 (52%) | 0.02 | 0.02 | 0.03 | 0.02 (94%) |
|
|
RSMR: RF shimming with multiple ROIs.
|
