MULTI-SLICE MR IMAGING METHOD AND MRI DEVICE

摘要

PURPOSE: To actually apply forced recovery pulses to a multi-slice method by applying refocus pulses selecting the slice only after a pulse sequence per slice within repetitive time and then applying forced recovery pulse rows. CONSTITUTION: A sequence memory circuit 6 operates a gradient magnetic field drive circuit 3 in accordance with commands from a computer 7 to generate a gradient magnetic field from a gradient magnetic field coil 1g of a magnet assembly 1, operates a gate modulation circuit 8 to modulate a high frequency output signal from an RF oscillation circuit 9 and apply it to an RF power amplifier 4, and applies it to a transmission coil 1t of the magnet assembly 1 after amplifying power to transmit RF pulses. Here, a refocus pulse selecting slice only is applied after a pulse sequence per slice within repetitive time, and then forced recovery pulse row selecting slice only is applied in multi-slice MR imaging.