System for fat suppression in obtaining of MR image
A technology of fat and imaging, applied in the fields of application, medical science, sensor, etc., can solve the problem of inability to obtain fat suppression
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[0012] A system improves fat suppression in MR image acquisition using an MR pulse sequence that uses one or more RF pulses to form echoes and a low bandwidth excitation RF pulse. The system advantageously uses different slice-selective gradient magnitudes for the RF pulses of EPI (also referred to as low-bandwidth excitation), together with slice-selective gradient inversion, to improve fat suppression in spin echo EPI diffusion imaging. When the proton spins return to the same starting phase they had after the initial excitation RF pulse, an RF refocusing pulse is applied. A spin echo sequence uses eg a 180° pulse to refocus the proton spins to generate a signal echo, and a gradient echo sequence uses a refocusing gradient to maximize the remaining transverse magnetization.
[0013] figure 1 A system 10 for fat signal suppressed MR imaging is shown. System 10 uses spin echo for signal generation to improve fat suppression in pulse sequences. In one embodiment, the system ...
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