| 摘要 |
PROBLEM TO BE SOLVED: To precisely determine an RF pulse width in an MR (Magnetic Resonance) scanning method and MRI (Magnetic Resonance Imaging) apparatus. SOLUTION: This MR scanning method is provided with a step Q1 of performing a localizer prescan for determining an RF pulse amplitude corresponding to an RF magnetic field intensity for the localizer scan, a step Q2 of performing the localizer san using the RF pulse of the RF pulse amplitude corresponding to the RF magnetic field intensity for the localizer scan, steps Q3 and Q4 of determining the RF pulse width of a full-scale scan based on data practically measured by the localizer prescan, a step Q5 of performing the prescan for the full-scale scan for determining the RF pulse amplitude corresponding to the RF magnetic field intensity of the full-scale scan, and a step Q6 of performing the full-scale scan using the RF pulse of the RF pulse amplitude corresponding to the RF magnetic intensity for the full-scale scan. This method can fully use the capacity of an RF power amplifier and avoid the occurrence of a situation of non-obtaining an intended RF magnetic field intensity. COPYRIGHT: (C)2006,JPO&NCIPI
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