Journal article

IIR GRAPPA for Parallel MR Image Reconstruction

Zhaolin Chen, Jingxin Zhang, Ran Yang, Peter Kellman, Leigh A Johnston, Gary F Egan

MAGNETIC RESONANCE IN MEDICINE | JOHN WILEY & SONS INC | Published : 2010

Abstract

Accelerated parallel MRI has advantage in imaging speed, and its image quality has been improved continuously in recent years. This paper introduces a two-dimensional infinite impulse response model of inverse filter to replace the finite impulse response model currently used in generalized autocalibrating partially parallel acquisitions class image reconstruction methods. The infinite impulse response model better characterizes the correlation of k-space data points and better approximates the perfect inversion of parallel imaging process, resulting in a novel generalized image reconstruction method for accelerated parallel MRI. This k-space-based reconstruction method includes the conventi..

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University of Melbourne Researchers