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Abstract #3986

Dual-Density & Parallel Spiral ASL for Motion Artifact Reduction

Craig H. Meyer1,2, Li Zhao1, Michael Lustig3, Manal Jilwan-Nicolas2, Max Wintermark2, John P. Mugler III2, Frederick H. Epstein2

1Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, United States; 2Department of Radiology, University of Virginia, Charlottesville, VA, United States; 3Department of Electrical & Computer Engineering, UC Berkeley, Berkeley, CA, United States


This study compares single-shot and interleaved constant-density spiral arterial spin labeling (ASL) sequences to their dual-density analogs. Single-shot dual-density parallel spiral ASL reconstructed using the SPIRiT parallel image reconstruction algorithm had the best combination of motion robustness, spatial resolution, and resistance to suceptibility artifacts.