Cooper & Dunham LLP
Magnetic resonance imaging method and device therefor
A plurality of time-series NMR signal groups are obtained before and after administration of a contrast agent, on an individual image basis, for the same region of the object. One of the obtained NMR signal group obtained before the administration is defined as standard data, a plurality of subtracted NMR signal groups are produced by performing subtraction between the standard NMR signal group and each of the other NMR signal groups obtained after the administration. The subtracted NMR signal groups are subjected to weighted-addition or cumulative addition to obtain an MR angiographic image excellent in contrast throughout the image, in which processes through which an optimal concentration portion of the contrast agent moves are joined into a single image.
Hitachi Medical Corporation
G G
G01R G01R
inventional additional
Shigeru
Watanabe