Patent ID: 11041926

Abstract:
A method of Dixon-type MR imaging includes subjecting the object (10) to a first imaging sequence (31) including a series of refocusing RF pulses. A single echo signal is generated in the time interval between two consecutive refocusing RF pulses. The first echo signals from the object (10) are acquired at a first receive bandwidth using unipolar readout magnetic field gradients. The object (10) is further subject to a second imaging sequence (32), which includes a series of refocusing RF pulses. A pair of second echo signals is generated in each time interval between two consecutive refocusing RF pulses. The pairs of second echo signals from the object (10) are acquired at a second receive bandwidth using bipolar readout magnetic field gradients. The second receive bandwidth is higher than the first receive bandwidth. Signal contributions from water protons and fat protons are separated and an MR image is reconstructed.