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Abstract #1680

Evaluation of Accelerated T1ρ Acquisition of the Cartilage Using a Combination of Compressed Sensing and Data Driven Parallel Imaging

Julien Rivoire1, Kevin F. King2, Xiaojuan Li1

1Department of Radiology and Biomedical Imaging, University of California at San Francisco, San Francisco, CA, United States; 2Applied Science Laboratory, General Electric Healthcare, Waukesha, WI, United States

In this work, a combination of compressed Sensing and parallel imaging reconstruction has been used to reconstruct MRI images for T1ρ measurement of the bone cartilage. While femoral cartilage T1ρ quantification was not affected significantly by the acceleration, the thinnest structures analyzed such as the tibia compartments suffered from higher deviation at high acceleration. Nevertheless, this preliminary data shows the feasibility of combining CS and PI and the potential acceleration benefit of using this new method to accelerate T1ρ quantification.