System for accelerated magnetic resonance imaging using parallel coils

US9594141B2 · kind B2 · utility

Assignees

• National Institutes of Health (NIH), U.S. Dept. of Health and Human Services (DHHS), The United States of America NIH Division of Extramural Inventions and Technology Resources (DEITR) · US
• The General Hospital Corporation · US
• Siemens Healthcare Limited · DE

Inventors

• Daniel Stuart Weller · Charlottesville, US
• Leo Grady · Yardley, US
• Lawrence L. Wald · Cambridge, US
• Vivek Goyal · Cambridge, US

Key dates

• Filing date: Oct 3, 2012
• Grant date: Mar 14, 2017
• Expiry date: Dec 16, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/5611
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An MR imaging system uses multiple RF coils for acquiring corresponding multiple image data sets of a slice or volume of patient anatomy. An image data processor comprises at least one processing device conditioned for, deriving a first set of weights for weighted combination of k-space data of the multiple image data sets for generating a calibration data set comprising a subset of k-space data of composite image data representing the multiple image data sets. The image data processor uses the calibration data set in generating a first MR image data set, deriving the parameters of a probability distribution in response to the first set of weights and the first MR image data set and deriving a second set of weights and second MR image data set together using the probability distribution.