Figure 6.

Coronal, sagittal and transverse sections to illustrate $B_1^{+}$ field and field change percentage. The absolute $B_1^{+}$ field magnitude is shown only for the reference simulation with no TMS coil present in the birdcage coil. For the simulations placing TMS coils into the birdcage coil, the calculated field difference percentages based on the “no TMS coil” condition as the reference are shown. Contour lines are plotted for both cases. The main sagittal view (through the middle of the phantom), a coronal view and the transversal plane at 6 cm depth from the top of the head are shown. Dotted lines in the field images of the no TMS coil condition show the coronal and transversal planes depicted.