Table 1. Average flip angle and CV of the flip angle in the heart before and after RF shimming as reported in the literature in humans and results from this study in swine.
| n, species | B1 + map orientation | pre RF-shim flip angle (% of desired) | post RF-shim flip angle (% of desired) | CV pre RF-shim | CV post RF-shim | |
|---|---|---|---|---|---|---|
| Mueller et al. [9] | 13, humans | transverse | 72.8±4.0 | 91.9±3.3 | 0.12±0.08 | 0.07±0.03 |
| Krishnamurti et al. [10] | 37, humans | transverse | 81.2±13.3 | 88.5±15.2 | 0.13±0.03 | 0.07±0.02 |
| Jia et al. [11] | 14, humans | short axis view | 76.7±9.7 | 85.4±9.5 | 0.10±0.05 | 0.07±0.02 |
| Jogiya et al. [12] | 30, humans | transverse | 74.2±8.3 | 91.1±1.9 | n.a. | n.a. |
| Weighted average excluding this work | 94 for FA; 64 for CV | 77.1 | 89.3 | 0.12 | 0.07 | |
| This work | 100, swine | transverse | 74.4±6.7 | 94.7±4.8 | 0.11±0.03 | 0.07±0.02 |