RF Shimming in Human Torso with the Multi-Mode Coaxial Waveguide at 7T

Keywords

achieved action adding allows amplification amplifications amplitude antenna antennas applied array arrows attenuation available become berg bergen better body candidate channel channels chosen classical coaxial coils combination combined concept consequent constraints coronal coverage dashed dedicated degraded depicted determined developed deviation dielectric distant distinct distribution distributions diverse division effectively efficiency efficient eight eliminated eliminating evaluation excitation excited exploited extension family field five flexible generally good head healthy homogeneity house human importantly improved in vivo individual individually instead kidneys leads legs lining liver local location male maps mode model modes nonetheless optimal optimization optimized organ outlined overall patterns peak pelvis performance phys placed power presence propagating prostate quadrature quality receive recently recorded reduced relatively remarkably reported safety scanner selected sensitivities setting settings setup shape shield shim shimmed shimming significantly simulated sites slice spatial strongly subsequently summarized systems target targets tool torso transmit transmitter transversal transverse ultra undesirable virtual void voids volume volunteer wave waveguide whole