US 12,135,363 B2
Shot-wise inversion time adaptation for multi-shot inversion recovery imaging
Wolfgang G. Rehwald, Chapel Hill, NC (US); Raymond J. Kim, Chapel Hill, NC (US); and Enn-Ling Chen, Chapel Hill, NC (US)
Assigned to Siemens Healthineers AG, Forchheim (DE); and Duke University, Durham, NC (US)
Filed by Siemens Healthineers AG, Erlangen (DE); and Duke University, Durham, NC (US)
Filed on Oct. 25, 2022, as Appl. No. 18/049,292.
Claims priority of provisional application 63/271,832, filed on Oct. 26, 2021.
Prior Publication US 2023/0132314 A1, Apr. 27, 2023
Int. Cl. G01V 3/00 (2006.01); G01R 33/483 (2006.01); G01R 33/56 (2006.01); G01R 33/561 (2006.01); A61B 5/055 (2006.01)
CPC G01R 33/5608 (2013.01) [G01R 33/4835 (2013.01); G01R 33/5611 (2013.01); A61B 5/055 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A magnetic resonance imaging system comprising:
a magnet system configured to generate a polarizing magnetic field about at least a portion of a subject;
a plurality of gradient coils configured to apply at least one gradient field to the polarizing magnetic field;
a radio frequency (RF) system configured to apply an excitation field to the subject and to acquire magnetic resonance (MR) data from the subject; and
a processing unit to execute program code to cause the system to:
execute a segmented magnetic resonance imaging pulse sequence, the pulse sequence including a plurality of shots, each of the plurality of shots including an inversion recovery preparation pulse and readout pulses to acquire a respective segment of k-space lines, wherein a time between a peak of the inversion recovery pulse and a midpoint of the readout pulses to acquire the respective segment of k-space lines is different for each of the plurality of shots;
combine the acquired respective segments of k-space lines into one k-space;
reconstruct an image from the one k-space; and
present the image on a display.