Method and system of MR imaging with variable readout gradient filtering

US7098662B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Richard Scott Hinks · Waukesha, US
• Bryan J. Mock · Monona, US
• Bruce D. Collick · Madison, US
• Frederick J. Frigo · Waukesha, US

Key dates

• Filing date: Mar 17, 2005
• Grant date: Aug 29, 2006
• Expiry date: Mar 17, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/56554
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method and system of MR imaging where variable readout gradient filtering (VRGF) is carried out after MR data acquired during gradient field transitions has been phase-corrected. Thus, phase errors can be removed prior to VRGF re-sampling of the MR data. As such, image artifacts due to phase errors can be reduced, improving image fidelity and reducing ghosting especially for poorly calibrated systems.