Abstract #3986

Dual-Density & Parallel Spiral ASL for Motion Artifact Reduction

Craig H. Meyer^1,2, 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.