Table 7.
The (a) mean and (b) maximum g-factors of the self-grounded bow-tie (SGBT) antenna building block, bow-tie (BT) antenna building block, and the fractionated dipole (FD) antenna RF array configurations at 7.0 T (baseline, BL) and 14.0 T (same channel count, SCC, double channel count DCC) in the cardiac ROI of Duke for SENSE image reduction for R = 2–4. The g-factors are given in the anterior–posterior (Rx) and left–right (Ry) phase encoding direction
| Noise amplification | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| SGBT | BT | FD | |||||||
| (a) mean | 7.0 T | 14.0 T | 14.0 T+ | 7.0 T | 14.0 T | 14.0 T+ | 7.0 T | 14.0 T | 14.0 T+ |
| Ry = 2 | 1.00 | 1.00 | 1.00 | 1.00 | 1.02 | 1.00 | 1.00 | 1.00 | 1.00 |
| Ry = 3 | 1.02 | 1.02 | 1.00 | 1.06 | 1.10 | 1.01 | 1.02 | 1.04 | 1.00 |
| Ry = 4 | 1.09 | 1.02 | 1.02 | 1.26 | 1.23 | 1.06 | 1.06 | 1.06 | 1.02 |
| Rx = 2 | 1.02 | 1.01 | 1.01 | 1.05 | 1.02 | 1.03 | 1.04 | 1.04 | 1.02 |
| Rx = 3 | 1.26 | 1.11 | 1.11 | 1.85 | 1.27 | 1.30 | 1.53 | 1.47 | 1.18 |
| Rx = 4 | 1.49 | 1.25 | 1.27 | 2.61 | 1.54 | 1.65 | 1.91 | 1.81 | 1.35 |
| (b) max | 7.0 T | 14.0 T | 14.0 T+ | 7.0 T | 14.0 T | 14.0 T+ | 7.0 T | 14.0 T | 14.0 T+ |
| Ry = 2 | 1.04 | 1.05 | 1.01 | 1.04 | 1.29 | 1.06 | 1.04 | 1.09 | 1.01 |
| Ry = 3 | 1.21 | 1.49 | 1.06 | 1.39 | 2.44 | 1.18 | 1.15 | 1.36 | 1.14 |
| Ry = 4 | 1.67 | 1.31 | 1.11 | 2.39 | 3.28 | 1.60 | 2.79 | 2.90 | 1.39 |
| Rx = 2 | 1.16 | 1.17 | 1.13 | 1.46 | 1.59 | 1.43 | 1.30 | 1.66 | 1.24 |
| Rx = 3 | 1.87 | 1.57 | 1.92 | 4.22 | 3.77 | 2.41 | 7.99 | 4.08 | 1.70 |
| Rx = 4 | 2.64 | 2.26 | 2.58 | 7.94 | 4.83 | 3.70 | 15.41 | 5.97 | 2.19 |
The DCC setups at 14.0 T are indicated with +