US 12,000,919 B2
Systems and methods for magnetic resonance imaging
Qi Liu, Houston, TX (US); Jingyuan Lyu, Houston, TX (US); and Jian Xu, Houston, TX (US)
Assigned to SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed by SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed on Aug. 26, 2022, as Appl. No. 17/822,436.
Prior Publication US 2024/0069139 A1, Feb. 29, 2024
Int. Cl. G01V 3/00 (2006.01); G01R 33/56 (2006.01); G01R 33/565 (2006.01)
CPC G01R 33/56509 (2013.01) [G01R 33/5608 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for magnetic resonance imaging (MRI), comprising:
at least one storage device including a set of instructions; and
at least one processor configured to communicate with the at least one storage device, wherein when executing the set of instructions, the at least one processor is configured to direct the system to perform operations including
determining, based on first MRI signals collected in a first imaging stage of an MRI scan of a subject, an initial spatial factor U0;
obtaining second MRI signals {M1, M2, . . . , Mn}, Mi being collect at time Ti among time series {T1, T2, . . . , Tn} during a second imaging stage of the MRI scan after the first imaging stage;
determining temporal factors {φ1, φ2, . . . , φn} and spatial factors {U1, U2, . . . , Um}, m being smaller than or equal to n, φi being determined based on the second MRI signals Mi, Uj being determined based on the second MRI signals {M1, M2, . . . , Mt}, 1<t<m and Mt being the latest second MRI signals obtained before the determination of Uj; and
generating real-time MRI images {A1, A2, . . . , An} and transmitting the real-time MRI images to a terminal device for display, Ai reflecting the status of the subject at the time Ti, and being generated based on the temporal factor φi and one of the initial spatial factor U0 or the latest spatial factor determined before the time Ti.