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Abstract #3816

Taming an Ill-Conditioned SPIRiT: Improved Iterative Image Reconstruction for Real-Time Cardiac MRI

Samuel T. Ting1, Yu Ding1, Rizwan Ahmad1, Hui Xue2, Orlando P. Simonetti1

1The Ohio State University, Columbus, OH, United States; 2Siemens Corporate Research, Princeton, NJ, United States

We seek to address the ill-conditioned properties of the SPIRiT reconstruction method when applied in scenarios requiring highly accelerated acquisitions, as is the case in real-time cardiac imaging under free-breathing conditions. We show that the use of a suitable data initialization in the POCS implementation of SPIRiT can help alleviate the issues resulting from the ill-conditioned properties of SPIRiT.