US 11,740,312 B2
Method and system for magnetic resonance elastography
Omar Darwish, London (GB); Stephan Kannengießer, Wuppertal (DE); Ralph Sinkus, Parmain (FR); and Radhouene Neji, London (GB)
Assigned to Siemens Healthcare GmbH, Erlangen (DE)
Filed by Siemens Healthcare GmbH, Erlangen (DE); and King's College London, London (GB)
Filed on Apr. 1, 2022, as Appl. No. 17/711,335.
Claims priority of application No. 21166641 (EP), filed on Apr. 1, 2021.
Prior Publication US 2022/0317219 A1, Oct. 6, 2022
Int. Cl. G01R 33/563 (2006.01); G01R 33/56 (2006.01); G01R 33/561 (2006.01)
CPC G01R 33/56358 (2013.01) [G01R 33/5608 (2013.01); G01R 33/5611 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for performing three-dimensional magnetic resonance elastography, MRE, using a magnetic resonance imaging, MRI, apparatus, the method comprising:
inducing a plurality of three-dimensional shear or compressional waves in an anatomical region of interest in a patient;
performing image acquisition during a single patient breath-hold by applying a multi-slice gradient echo, GRE, imaging sequence, in combination with an in-plane acceleration technique, to the anatomical region of interest, wherein the applying the multi-slice GRE imaging sequence comprises synchronizing the application of the multi-slice GRE imaging sequence to mechanical vibrations in the anatomical region of interest caused by the three-dimensional shear or compressional waves, and wherein the synchronizing the application of the multi-slice GRE imaging sequence to mechanical vibrations comprises applying a constant delay after each imaging shot within the multi-slice GRE imaging sequence; and
obtaining an image of the anatomical region comprising a first image slice and a second image slice, wherein the first image slice and the second image slice are partly overlaid in the image.