Patent ID: 9594133
Date: 2017-03-14
CPC Classifications: G01R

Claim:
1. A magnetic resonance imaging apparatus that reconstructs a plurality of different contrast images from a plurality of echo trains, which are collected by operating each unit according to a pulse sequence defined by imaging parameters, while sharing an echo signal, comprising: a sequence determination unit configured to determine an echo arrangement order of echo signals, which form the plurality of echo trains, on a trajectory of k space and k space to be filled such that echo time of an echo signal or continuity of a signal strength is maintained in each k space filled with echo signals, which are used for reconstructing each contrast image, and determining the pulse sequence such that echo signals are arranged on a trajectory of each k space in the determined echo arrangement order, wherein the sequence determination unit includes an echo arrangement determination unit configured to determine the echo arrangement order and a filling k space determination unit configured to determine k space of each contrast, which is filled, for each of the echo signals, the echo arrangement determination unit includes an echo connection point determination unit configured to determine an echo signal, from which sharing starts, as a connection point such that echo time of the echo signal continues in each of both k spaces that share the echo signal, and for each echo train, echo signals of desired contrast time are arranged in a lowest spatial frequency region on a trajectory of k space for the contrast, and echo trains other than a reference echo train that fills a low spatial frequency region of k space for a contrast image with the shortest echo time are arranged up to the connection point.