CEST LIPID ARTIFACT ELIMINATION METHOD, MEDIUM, DEVICE, AND MAGNETIC RESONANCE IMAGING APPARATUS

The present invention relates to the technical field of magnetic resonance. Disclosed are a CEST lipid artifact elimination method, a medium, a device, and a magnetic resonance imaging apparatus. According to the present invention, a lipid multi-peak model is incorporated into a simplified water-magnetization transfer (MT) two-pool Bloch-McConnell equation model for iterative solving, and fitting is performed on water, MT, and lipid multi-peak signals to obtain a reference signal for a CEST effect without direct lipid artifacts, and finally, the indirect influence of a lipid signal on a CEST signal is eliminated by means of normalization. A Bloch-McConnell equation involving lipids used in the present invention can more truly reflect the composition of a collected signal, so as to obtain a more accurate CEST reference signal. The present invention can eliminate lipid artifacts in CEST signals without adjusting the collection sequence, thereby improving the accuracy of CEST imaging. La présente invention se ra