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MAGNETIC FIELD MAPPING DURING SSFP USING PHASE-INCREMENTED OR FREQUENCY-SHIFTED MAGNITUDE IMAGES
MAGNETIC FIELD MAPPING DURING SSFP USING PHASE-INCREMENTED OR FREQUENCY-SHIFTED MAGNITUDE IMAGES
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机译:使用相位增加或频率偏移的巨幅图像进行SSFP期间的磁场映射
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摘要
A system has been developed for mapping the magnetic field during a balanced steady-state free precession (SSFP) sequence. Field maps are generated by analyzing the magnitude of images acquired using the SSFP imaging sequences with phase increment or frequency shift. The system maps the magnetic field relevant to the imaging sequence and need not rely on phase information. The field maps may be applied to adjust the hardware for correcting the field anomalies contained in the maps. The field maps may also be used for separation of water and fat signals in SSFP imaging.
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