US 11,841,409 B2
Computer-implemented method for operating a magnetic resonance device, magnetic resonance device, computer program, and electronically-readable storage medium
Mario Zeller, Erlangen (DE); Flavio Carinci, Würzburg (DE); and Dominik Paul, Bubenreuth (DE)
Assigned to Siemens Healthcare GmbH, Erlangen (DE)
Filed by Siemens Healthcare GmbH, Erlangen (DE)
Filed on Jun. 24, 2022, as Appl. No. 17/849,130.
Claims priority of application No. 21182299 (EP), filed on Jun. 29, 2021.
Prior Publication US 2022/0413075 A1, Dec. 29, 2022
Int. Cl. G01R 33/483 (2006.01); G01R 33/54 (2006.01)
CPC G01R 33/4835 (2013.01) [G01R 33/54 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A computer-implemented method to determine an acquisition order in accordance with operating a magnetic resonance device to acquire a magnetic resonance data set that comprises a total number of slices using a simultaneous multislice technique, the method comprising:
simultaneously measuring, in each sequence section of a repetition sequence that is repeated multiple times, magnetic resonance signals from a simultaneity number that is equal to an acceleration factor of at least two, slices that have been excited in a respective sequence section;
determining a collapsed slice number of slice groups as a total number of slices divided by the acceleration factor, the slices being numbered according to their spatial arrangement in at least one stacking direction, and the slice groups being defined such that the slice numbers in each respective slice group differ by the collapsed slice number, the slice groups being numbered according to a lowest slice number among their respective slices; and
assigning slice groups to the sequence sections according to an interleaving scheme applied to the slice groups sorted by their respective slice numbers,
wherein the interleaving scheme is determined by (i) determining multiple different reordering schemes for each one of the slice groups, and (ii) using at least one decision criterion, which describes at least an estimated slice crosstalk strength for each of the multiple different reordering schemes, to select one of the reordering schemes as the interleaving scheme.