egg-white and Dizziness

To investigate the effects of frequency drift on chemical exchange saturation transfer (CEST) imaging at 3T, and to propose a new sequence for correcting artifacts attributed to B. A frequency-stabilized CEST (FS-CEST) imaging sequence was proposed by adding a frequency stabilization module to the conventional non-frequency-stabilized CEST (NFS-CEST) sequence, which consisted of a small tip angle radiofrequency excitation pulse and readout of three non-phase-encoded k-space lines. Experiments were performed on an egg white phantom and 26 human subjects on a heavy-duty clinical scanner, in order to compare the difference of FS-CEST and NFS-CEST sequences for generating the z-spectrum, magnetization transfer ratio asymmetry (MTR. The B. The proposed FS-CEST sequence provides an effective approach for B

Topics: Algorithms; Animals; Artifacts; Chickens; Child; Child, Preschool; Dizziness; Egg White; Female; Headache; Humans; Image Processing, Computer-Assisted; Magnetic Resonance Imaging; Male; Phantoms, Imaging; Radio Waves; Seizures, Febrile