US 11,726,158 B2
3D flow compensated interleaved EPI with a centric reordering scheme for fast high-resolution susceptibility-weighted imaging
Wei Liu, Shenzhen (CN); Kun Zhou, Shenzhen (CN); and Qiong Zhang, Shenzhen (CN)
Assigned to Siemens Healthcare GmbH, Erlangen (DE)
Filed by Siemens Healthcare GmbH, Erlangen (DE)
Filed on Jul. 23, 2021, as Appl. No. 17/383,563.
Claims priority of application No. 202010721447.3 (CN), filed on Jul. 24, 2020.
Prior Publication US 2022/0026515 A1, Jan. 27, 2022
Int. Cl. G01V 3/00 (2006.01); G01R 33/561 (2006.01); G01R 33/565 (2006.01)
CPC G01R 33/5616 (2013.01) [G01R 33/56536 (2013.01); G01R 33/56554 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for susceptibility-weighted imaging performed by a magnetic resonance imaging (MRI) system having a flow compensator, an echo collector, and a weighted imager, the method comprising:
in planar echo imaging of a plurality of excitations, the flow compensator of the MRI system performing flow compensation in directions of layered encoding, phase encoding, and frequency encoding for echoes of each excitation;
the echo collector of the MRI system determining a plurality of echoes to be collected when a linear reordering mode is adopted after each excitation, and collecting each echo in a positive direction or a negative direction from a central echo of the plurality of echoes toward space k, wherein a direction of collecting echoes for the current excitation is opposite to a direction of collecting echoes for the previous excitation; and
the weighted imager of the MRI system performing susceptibility-weighted imaging of the collected echoes to generate susceptibility-weighted images for display.