Computer implemented method and system for magnetic resonance imaging

US11187769B2 · kind B2 · utility

Assignees

• The General Hospital Corporation · US
• Siemens Healthcare Limited · DE

Inventors

• Daniel Nicolas Splitthoff · Erlangen, DE
• Julian Hossbach · Erlangen, DE
• Josef Pfeuffer · Newton, US
• Stephen Farman Cauley · Cambridge, US
• Melissa Haskell · Cambridge, US

Key dates

• Filing date: Apr 17, 2020
• Grant date: Nov 30, 2021
• Expiry date: Apr 17, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/4824
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The disclosure relates to a computer implemented method for magnetic resonance imaging. The method includes: receiving at least a first and a second subset of k-space data as radio frequency signals emitted from excited hydrogen atoms of a subject; sampling the first and second subset of k-space data; choosing the first subset of k-space data as a base subset of k-space data; estimating motion parameters of the second subset of k-space data against the base subset of k-space data; and correcting the second subset of k-space data based on the estimated motion parameters of the second subset of k-space data. The motion parameters of the second subset of k-space data are parameters of a non-linear motion estimating function representing a motion of the subject between receiving the first subset of k-space data and receiving the second subset of k-space data.