Patent ID: 6801035
Filing Date: 2004-10-05
Classification: G01R

Abstract:
A method for generating a magnetic resonance image of a subject, comprising:emitting radio-frequency excitation pulses and gradient pulses, including phase-coding gradients, into an imaging region in which a subject is disposed, said imaging region being divided into a plurality of partial imaging regions, for generating location-coded magnetic resonance signals in said subject, said phase-coding gradients incompletely location coding said magnetic resonance signals in a phase-coding direction; simultaneously receiving said magnetic resonance signals with a plurality of reception antennas, as respective reception signals, and for each of said reception signals forming a k-space dataset; reconstructing an intermediate image from each of said k-space datasets, each intermediate image containing fold-over artifacts due to the incomplete location coding in the phase-coding direction; for each of said antennas, acquiring an intermediate weighting image of said subject and determining from said intermediate weighting images a weighting matrix, which is simultaneously minimized to noise and fold-over artifacts with respect to a reconstructed overall weighting image formed by said intermediate weighting images; combining said intermediate images using said weighting matrix to form, exclusively from said intermediate image and said weighting matrix, a noise-minimized, fold-over artifact-free overall image of said subject.