Accelerated magnetic resonance imaging using a parallel spatial filter

US6556009B2 · kind B2 · utility

Assignee

• The United States of America, as represented by the Department of Health and Human Services · US

Inventors

• Peter Kellman · Bethesda, US
• Elliot McVeigh · Phoenix, US

Key dates

• Filing date: Dec 11, 2000
• Grant date: Apr 29, 2003
• Expiry date: Dec 11, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/5619
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An apparatus and method for accelerating magnetic resonance imaging by decreasing the number of sequential phase encodes (undersampling). Image reconstruction of undersampled k-space data can cause ghost artifacts to be produced in the resulting sequence of images. A combination of temporal and spatial filters are used to substantially suppress the ghost artifacts. Additionally, the spatial filter receives spatial filter coefficients used in the filtering process. The spatial filter coefficients are adaptively or dynamically generated so that the coefficients are provided to the spatial filter while generating the sequence of images.