Meeting Banner
Abstract #2630

A Comparative Study of Undersampling Schemes for Magnetic Resonance Dynamic Contrast Enhanced Imaging

Sairam Geethanath1, Praveen K. Gulaka1, Vikram D. Kodibagkar1,2

1Joint graduate program in biomedical engineering, UT Arlington & UT Southwestern Medical Center, Dallas, TX, United States; 2Radiology, UT Southwestern Medical Center

Fast imaging is a prerequisite for dynamic contrast enhanced (DCE) magnetic resonance imaging as high temporal resolution is required for accurate estimation of the pharmacokinetic parameters. This study involves the investigation of the comparison of two acceleration methods: keyhole imaging and compressed sensing (CS) as applied to DCE. Comparison has been done with respect to data quality and pharmacokinetic parameters for a range of undersampling schemes. CS provides better data quality and reproducible parametric maps at acceleration factors of up to 5X while keyhole performs comparably up to 3X