Nonrigid motion correction in 3d using autofocusing with localized linear translations
AssigneesThe Regents of the University of California, The Board of Trustees of the Leland Stanford Junior University
InventorsJoseph Y. CHENG, John M. PAULY, Michael LUSTIG, Shreyas S. VASANAWALA
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Abstract
A method for providing an magnetic resonance imaging (MRI) with nonrigid motion correction of an object is provided. An MRI excitation is applied to the object. A magnetic field read out from the object using a plurality of sensor coils. Spatially localized motion estimates are obtained for each sensor coil of the plurality of sensor coils. The motion estimates are used for each sensor coil to provide motion correction.
Claims19
A method for providing an magnetic resonance imaging (MRI) with nonrigid motion correction of an object, comprising:
- applying an MRI excitation to the object;
- reading out magnetic field from the object using a plurality of sensor coils;
- obtaining spatially localized motion estimates for each sensor coil of the plurality of sensor coils;
- and
- using the motion estimates for each sensor coil to provide motion correction.
A method for providing an magnetic resonance imaging (MRI) with nonrigid motion correction of an object, comprising:
- applying an MRI excitation to the object;
- reading out magnetic field from the object using a plurality of sensor coils, wherein the sensor coils are spaced apart so that different sensor coils sense different 3D motion, wherein the reading out the magnetic field uses an acquisition trajectory with navigators;
- obtaining spatially localized motion estimates for each sensor coil of the plurality of sensor coils;
- using the motion estimates for each sensor coil to provide motion correction;
- and
- generating an image with nonrigid motion correction through 3D auto focusing.
Dependencies are inferred from the claim text.