Abstract #0310

Artifact reduction for real-time spiral MRI using out-in sampling at 0.55T

Jeffery Wong¹, Prakash Kumar¹, Krishna S. Nayak¹, and Ye Tian¹

¹Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, United States

Synopsis

Keywords: Low-Field MRI, Low-Field MRI, Speech, RT-MRIWe demonstrate reduced artifacts for real-time MRI of speech production at 0.55T with a gradient echo sequence using spiral out-in sampling, and constrained image reconstruction. This approach avoids banding artifacts experienced by spiral bSSFP sequences, and exhibits reduced blurring artifact compared to a spiral out gradient echo sequence at the same readout duration.

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