发明名称 MAGNETIC RESONANCE IMAGING APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide a favorable space selection ability and a frequency selection ability by easily and highly accurately removing the influence of eddy current and a residual magnetic field due to a vibrating gradient magnetic field in an imaging using a pulse sequence for applying a plurality of RF pulses, along with the vibrating gradient magnetic field. SOLUTION: This magnetic resonance imaging apparatus independently calculates deviations between the phase of a nuclear spin and the phase of the RF pulses due to the residual magnetic field and the eddy current from the phase of an excitation profile in a captured image or the receiving signal, respectively. The influence of the residual magnetic field and the eddy current are removed by correcting individual phases of sub-pulses constituting the RF pulse using the calculated values. COPYRIGHT: (C)2009,JPO&INPIT
申请公布号 JP2009018079(A) 申请公布日期 2009.01.29
申请号 JP20070184096 申请日期 2007.07.13
申请人 HITACHI MEDICAL CORP 发明人 NISHIHARA TAKASHI;ITAGAKI HIROYUKI;TAKAHASHI TETSUHIKO
分类号 A61B5/055;G01R33/48 主分类号 A61B5/055
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