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Modification of frequency response profiles of steady state free precession for magnetic resonance imaging (MRI)
Modification of frequency response profiles of steady state free precession for magnetic resonance imaging (MRI)
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机译:稳态无旋进的磁共振成像(MRI)频率响应曲线的修改
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摘要
Apparatus and methods for modification of the frequency response profile of steady-state free precession (SSFP) type of magnetic resonance imaging (MRI) sequences. Using alternating dephasing moments within succeeding radiofrequency (RF) excitation pulses, the frequency response function of SSFP sequences can be modified to different shapes such as near triangular or bell shaped. The particular response function as produced by alternating dephasing moments can be used, among others, for functional brain MRI, MR spectroscopy or spatial encoding.
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