Unshielded and Asymmetric RF Transmit Coil for Hyperpolarized 129Xe Human Lung Imaging at 3.0 T

Keywords

able accelerated accommodate achieved advantage allowing analytical anatomy anomalies applications applied approaches arrays asymmetric asymmetry axes axis basis better bird birdcage bore breath built cage capacitance channel circuit close coil coils combine comfort comfortable conformal connected constant containing coupling cross cylinder dept describe described design designed developed diagnostic disadvantage discovery distribution double driving easy elements employed entire exceedingly expected explained free frequency furthermore geometrical good grace gradient halves healthy homogeneity human improvements inductance institute isolation known laboratory length limit linear loaded long lung lungs made matrix medical mesh meshes mixture mode model move nevertheless noisy operated operating optimum oxygen partial particularly perfusion permits phantom pixel plastic plentiful ports positioning power previously proton pulmonary pulses quad quadrature quality receive resonant resonators respect reveal ring room scheme section sensitive short splits studies subject subjects successive system taken taking tissue transmission transmit transverse typical uniform unloaded unprecedented unshielded utility utilized ventilation volume volunteer widespread