Validation of a Very Fast B1-Mapping Sequence for Parallel Transmission on a Human Brain at 7T

Keywords

acceptable account accuracy accurate acquisition acquisitions addition adopted allows almost apart application applied apply approaches array artifacts assuming avoid axial better brain calibration channel channels close coil collected combination combined complementary concept consenting converge correlation currently demanding dependent design deviation diameter dipoles distributions employed entire equipped errors evaluated eventually except eyes fast faster field fitting flash front good gradient head hereafter human identical important individual initial institutional interferometric introduced leaving long losses made magnetization many mapping maps matrix measuring minimal minutes moreover much needed nevertheless normalized open optimal orientation originally parallel part partially particular performance phantom phantoms plots precision preparation problem pulse pulses rapid readout real referred relatively reported saturated saturation scatter seems selective sessions sets shim short slice slightly slopes space spatially spherical square steady strength subject surface tailored targeted targeting tends tissues took towards track train trajectory transmission transmit typical uniform upper usually validation verse versus voltage whole yield