Patent ID: 8073522
Filing Date: 2011-12-06
Classification: G01R

Abstract:
1. A method for acquisition and generation of a time-resolved image series comprised of a plurality of individual magnetic resonance images, said method comprising the steps of: acquiring magnetic resonance data from a region of an examination subject containing an anatomical organ exhibiting quasi-periodical movement and entering said data into k-space by sampling k-space in segments with a plurality of partial data sets, with sampling points of each of said partial data sets corresponding to grid points of a Cartesian sampling grid in each k-space segment, and rotating the respective Cartesian sampling grids of the k-space segments relative to each other; acquiring said magnetic resonance data by acquiring a plurality of incomplete sub-data sets for each of said partial data sets, with each incomplete sub-data set being respectively associated with one of said individual images, with the acquisition of the incomplete sub-data sets for a respective partial data set ensuing along the sampling grid of that partial data set with different, alternating sampling schemes, and sampling other grid points of the sampling grid of that partial data set with said different sampling schemes; from at least some of the partial data sets, reconstructing a plurality of complete sub-data sets from the incomplete sub-data sets; and reconstructing said individual images by, for each of said individual images, using at least some of the complete sub-data sets that are associated with that individual image.