Patent ID: 8346340
Filing Date: 2013-01-01
Classification: A61B,G01R

Abstract:
1. A magnetic resonance imaging apparatus comprising: a collection unit which collects a magnetic resonance signal concerning a subject in a fast spin echo sequence or a fast asymmetric spin echo sequence; a pre-scan control unit which controls the collection unit in such a manner that pre-scan is executed in regard to a plurality of slices determined as some of a plurality of slices that are main scan targets; a calculation unit which calculates at least one of correction amounts for a gradient magnetic field in a readout direction and a phase of a radio-frequency pulse based on data concerning a plurality of slices obtained by the pre-scan; an estimation unit which estimates a correction amount concerning each slice other the plurality of pre-scanned slices in the plurality of slices that are the main scan targets based on a plurality of correction amounts calculated by the calculation unit; and a main scan control unit which controls the collection unit in such a manner that each of the plurality of slices as the main scan targets is scanned while involving correction of each slice that is the pre-scan target with the correction amount thereof calculated by the calculation unit and while involving correction of each slice that is not the pre-scan target with the correction amount thereof estimated by the estimation unit.