Abstract #5515

High resolution MRSI using compartmental low rank algorithm: demonstration using undersampled EPSI

Ipshita Bhattacharya¹, Ralph Noeske², Baolin Yang³, Rolf F Schulte⁴, and Mathews Jacob¹

¹Department of Electrical and Computer Engineering, The University of Iowa, Iowa City, IA, United States, ²GE Healthcare, Postdam, Germany, ³GE Healthcare, Waukesha, WI, United States, ⁴GE Global Research, Munich, Germany

Improved spatial resolution is the need of the hour for MRSI. In this work we propose an algorithm which provides a comprehensive and automatic approach to recover high resolution metabolite maps from highly undersampled acquisitions; the improved spatial resolution translates to improved spectral quality and reduced leakage artifacts. The proposed algorithm is also quite flexible and can be readily used in a variety of sequences, including EPSI, CSI, and spirals acquisition schemes.

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