Patent ID: 8675942
Filing Date: 2014-03-18
Classification: G01R

Abstract:
1. A method for generating a reconstructed image of an object from undersampled image data obtained with a medical imaging system, comprising: a processor receiving the undersampled image data obtained with the medical imaging system by radial imaging; the processor generating an estimate image by reconstructing a substantially artifact-free image from non-overlapping image data in the undersampled image data; the processor generating an intermediate data set by performing an element-wise operation on corresponding data elements in an iterative image and the estimate image; the processor generating the reconstructed image by minimizing a transform of the intermediate data set; and wherein the minimizing is represented by an expression f represents the iterative image; g represents the estimate image; • represents the element-wise operation; g•f represents the intermediate data set; φ(g·f) represents the transform of the intermediate data set; ∥.∥ 1 represents an L1 norm; ∥.∥ 2 represents an L2 norm; A represents a non-uniform Fourier operator that maps an image into k-space; y is measured k-space data; and ε is a parameter that accounts for deviation between measured and ideal data.