Patent ID: 8222900
Filing Date: 2012-07-17
Classification: G01R

Abstract:
1. A method associated with magnetic resonance (MR), comprising: acquiring a k-space data from a magnetic resonance (MR) apparatus having two or more coils, the k-space data comprising a set of auto-calibration signal (ACS) lines, and a set of under sampled outer k-space data; creating a set of over determined linear equations to solve for coil coefficients associated with coil sensitivity associated with the two or more coils, the set of over determined linear equations depending, at least in part, on the set of ACS lines; assigning a set of first weights to an ACS region; calculating a set of coil coefficients based, at least in part, on the set of ACS lines; selectively manipulating a weight of the first set of weights for an outlying data point to create a second set of weights; selectively manipulating the set of over determined linear equations, in response to creating the second set of weights, based on the set of coil coefficients and one or more weights of the second set of weights to account for an outlying data point; recalculating the set of coil coefficients based, at least in part, on the set of ACS lines and the set of over determined linear equations; calculating a set of values for one or more missing k-space data points; establishing a full k-space data set using the MR data and the set of values for the missing k-space data points; and producing an image from the full k-space data set.