Assessment of Spatial-variant Noise Level in Real-time Dynamic MR Images - a Random Matrix Approach

2009/01/26 by Ding, Yu, Chung, Yiu-Cho, Simonetti, Orlando P.
#Data Analysis #FOS: Physical sciences #Medical Physics (physics.med-ph) #Statistics and Probability (physics.data-an)

paper · doi:10.48550/arxiv.0901.4027

Abstract

Accurate measurement of spatially variant noise in dynamic magnetic resonance (MR) images acquired using parallel imaging methods is problematic. We propose a new method based on the random matrix theory to accurately assess the noise level. The method is validated using numerical simulation and in-vivo dynamic cardiac MR images.

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