The “Loopole” Antenna: A Hybrid Coil Combining Loop and Electric Dipole Properties for Ultra-High-Field MRI

Figure 5

Simulated maps normalized to 1 watt of accepted power. A small deviation is observed between the maps produced by the loop array in the two orientations. The map for the dipole array is identical between the two orientations (hence, the orientation 2 map is not shown). The map for the loopole array is more markedly different between orientations. In the optimal orientation, the loopole array outperforms the loop array by 30% and the dipole array by 15% in central .