Abstract #1090

k-t ESPIRiT: Efficient Auto-Calibrated Parallel Imaging Reconstruction by Exploiting k-t Space Correlations

Claudio Santelli¹, Adrian Huber¹, and Sebastian Kozerke¹

¹Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland

Using eigen-decomposition of a modified k-t SPIRiT operator, computationally optimized reconstruction formally translating into auto-calibrated SENSE-like reconstruction of a coil-combined x-f image (k-t ESPIRiT) is proposed. 2D and 3D in-vivo experiments show equivalence of k-t SPIRiT and k-t ESPIRiT, and significant reconstruction time speed-up's of the proposed relative to the standard technique.

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