MR Flow Imaging Beyond the Mean Velocity: Estimation of the Skew and Kurtosis of Intravoxel Velocity Distributions
نویسندگان
چکیده
INTRODUCTION: MR flow imaging continuously improves the understanding and diagnostics of cardiovascular disease [1]. The most common MR flow imaging method is phase-contrast MRI (PC-MRI) velocity mapping, which estimates the mean velocity of a voxel. However, MR has the ability to do much more advanced flow analysis, including quantification of turbulent flow [2, 3]. The aim of this work was to go beyond the mean velocity of a voxel and demonstrate the potential of MRI for the quantification of the skew and kurtosis of intravoxel velocity distributions. Skew describes the asymmetry of a velocity distribution and kurtosis describes the sharpness of its central peak.
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A novel MRI framework for the quantification of any moment of arbitrary velocity distributions.
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