Systems and methods for motion-artifact reduction in magnetic resonance imaging

US12276715B2 · kind B2 · utility

Assignee

• GE Precision Healthcare LLC · US

Inventors

• Sudhanya Chatterjee · Survanagiri, IN
• Megha Goel · Survanagiri, IN
• Suresh Emmanuel Devadoss Joel · Kanchinakote, IN
• Rohan Patil · Bengaluru, IN
• Florintina C · Survanagiri, IN
• Preetham Shankapal · Survanagiri, IN

Key dates

• Filing date: Jun 8, 2023
• Grant date: Apr 15, 2025
• Expiry date: Jan 3, 2044

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/20081
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Systems and methods are provided for reconstructing images from motion-affected k-space data. In one example, a method comprises obtaining k-space data of a spin echo magnetic resonance imaging (MRI) exam of a subject, the k-space data comprising a plurality of echo train lengths (ETLs), with each ETL comprising a subset of lines of the k-space data. The method further comprises identifying a subset of ETLs of the plurality of ETLs of the k-space data corresponding to a dominant pose of the subject, generating an undersampled version of the k-space data, the undersampled version including only the subset of ETLs, entering the undersampled version of the k-space data as input to a reconstruction model trained to output a reconstructed image based on the undersampled version of the k-space data, and displaying the reconstructed image on a display device and/or saving the reconstructed image in memory.