Kaiyu Zheng1, Wendy Ni1, Jingxin
Zhang2
1Monash Unversity; 2Department
of Electrical and Computer Systems Engineering,
GRAPPA
proves to be an effective constrained parallel MRI method. However, it does
not exploit the acqired data to the utmost.In our investigation to produce a
superior parallel Magnetic Resonance Imaging (MRI) reconstruction technique,
we propose the novel method of Infinite Impulse Response Iterative GRAPPA
(IIR iGRAPPA). This method uses both
acquired and reconstructed data points to iteratively interpolate downsampled
k-space data, achieving excellent reconstruction quality without the need to
acquire much additional data for calibration purposes. Experimental results clearly demonstrate
the superiority of the proposed method over the conventional GRAPPA method.
Keywords