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Purpose
To develop and evaluate a novel dynamic contrast‐enhanced imaging technique called RACER‐GRASP (Respiratory‐weighted, Aortic Contrast Enhancement‐guided and coil‐unstReaking Golden‐angle RAdial Sparse Parallel) MRI that extends GRASP to include automatic contrast bolus timing, respiratory motion compensation, and coil‐weighted unstreaking for improved imaging performance in liver MRI.
Methods...
Purpose
The purpose of this work is to characterize the noise distribution of proton density fat fraction (PDFF) measured using chemical shift–encoded MRI, and to provide alternative strategies to reduce bias in PDFF estimation.
Theory
We derived the probability density function for PDFF estimated using chemical shift–encoded MRI, and found it to exhibit an asymmetric noise distribution that contributes...
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