| 摘要 |
PROBLEM TO BE SOLVED: To restrain a step of S/N and turning artifact in a contour part of a subject in a parallel imaging method. SOLUTION: In this parallel imaging method, the whole sensitivity image is deformed using a function for recessing in the phase encoding direction, whereby weighting for extrapolation of background area of a sensitivity distribution is converted to reflect the characteristics of the central part of the sensitivity distribution of each coil strongly on extrapolation to improve S/N after matrix calculation and restrain step of S/N. The sensitivity distribution of a subject region is expanded to be taken as the sensitivity distribution of a boundary region between the subject region and the background region, thereby eliminating a step and an error in the sensitivity distribution between the subject region and the background region. Thus, defective turning removal in the boundary between the subject region and the background region is improved. COPYRIGHT: (C)2006,JPO&NCIPI
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