US 12,293,437 B2
De-streaking algorithm for radial k-space data
Fei Han, Beverly Hills, CA (US); Stephen Farman Cauley, Winchester, MA (US); and Vibhas S. Deshpande, Austin, TX (US)
Assigned to Siemens Healthineers AG, Forchheim (DE); and The General Hospital Corporation, Boston, MA (US)
Filed by Siemens Healthineers AG, Forchheim (DE); and The General Hospital Corporation, Boston, MA (US)
Filed on Feb. 8, 2023, as Appl. No. 18/165,968.
Prior Publication US 2024/0265592 A1, Aug. 8, 2024
Int. Cl. G06T 11/00 (2006.01); G01R 33/48 (2006.01); G01R 33/565 (2006.01); G06T 7/11 (2017.01); G06T 7/70 (2017.01)
CPC G06T 11/005 (2013.01) [G01R 33/482 (2013.01); G01R 33/56545 (2013.01); G06T 7/11 (2017.01); G06T 7/70 (2017.01); G06T 2207/10088 (2013.01); G06T 2207/30004 (2013.01); G06T 2211/448 (2023.08)] 17 Claims
OG exemplary drawing
 
1. A system comprising:
a magnet system configured to generate a polarizing magnetic field about at least a portion of a subject;
a gradient system to apply a gradient magnetic field to the polarizing magnetic field;
a plurality of radio frequency (RF) coils to apply an excitation field to the subject and to each acquire a single channel of k-space data from the subject;
a display; and
a computing system to execute program code to:
determine a region of interest of the subject;
determine a coil-mixing matrix to combine single channels of k-space data and suppress k-space data of the single channels of k-space data which is not acquired from the region of interest;
control the gradient system and the plurality of radio frequency (RF) coils to acquire single-channel radial trajectory k-space data of the subject from each of the plurality of RF coils;
apply the coil-mixing matrix to the single-channels of radial trajectory k-space data of the subject acquired from the plurality of RF coils to generate first single-channel radial trajectory k-space data;
reconstruct an image based on the first single-channel radial trajectory k-space data; and
display the image on the display.