Simultaneous multi-slice magnetic resonance imaging with spin excitation using a multi-band radio-frequency pulse

摘要

In a method and apparatus for acquiring magnetic resonance (MR) raw data with a simultaneous multi-slice (SMS) data acquisition sequence, nuclear spins respectively in multiple slices of the examination subject are simultaneously excited by radiating, from a radio-frequency (RF) radiator of the MR data acquisition scanner, a multi-band (MB) RF pulse. This MB RF pulse in the SMS data acquisition sequence is generated by radiating and superimposing a number of single band (SB) RF pulses emitted from said RF radiator, each having a respectively different flip angle. Raw MR data are acquired from the multiple slices of the examination subject after the simultaneous excitation of nuclear spins in the multiple slices with said MB RF pulse.