US 12,270,885 B2
Accelerated haste for pace triggering
Yu Yu Wang, Shenzhen (CN); and Fang Dong, Shenzhen (CN)
Assigned to Siemens Healthineers AG, Erlangen (DE)
Filed by Siemens Healthcare GmbH, Erlangen (DE)
Filed on Aug. 18, 2021, as Appl. No. 17/405,475.
Claims priority of application No. 202010836538.1 (CN), filed on Aug. 19, 2020.
Prior Publication US 2022/0057466 A1, Feb. 24, 2022
Int. Cl. G01R 33/567 (2006.01); A61B 5/055 (2006.01); G01R 33/561 (2006.01); G01R 33/565 (2006.01)
CPC G01R 33/5676 (2013.01) [A61B 5/055 (2013.01); G01R 33/5615 (2013.01); G01R 33/56509 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for magnetic resonance imaging triggered by a prospective acquisition correction sequence, comprising:
determining, via one or more processors, a repetition time and an acquisition window time of a single-shot fast spin echo sequence;
determining, via the one or more processors, a maximum imaging layer number N in each one of a plurality of physiological movement cycles based upon the acquisition window time and the repetition time,
wherein N is a positive integer greater than or equal to 2; and
enabling, via the one or more processors, the single-shot fast spin echo sequence to obtain M layers of imaging data within at least one acquisition window time when the prospective acquisition correction sequence generates a trigger signal,
wherein M is a positive integer greater than or equal to 2 and less than or equal to N, and
wherein the enabling the single-shot fast spin echo sequence to obtain M layers of imaging data within at least one acquisition window time comprises:
determining a number K of the plurality of physiological movement cycles when a predetermined total imaging layer number L is not divisible by M, with K=(int(L/M)+1), and int(L/M) represents a rounded value of (L/M);
enabling the single-shot fast spin echo sequence to obtain M layers of imaging data within an acquisition window time of each physiological movement cycle from a first physiological movement cycle to a (K−1)th physiological movement cycle; and
enabling the single-shot fast spin echo sequence to obtain (L−(K−1)*M) layers of imaging data in a Kth physiological movement cycle.