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.
@article{arxiv.0901.4027,
title = {Assessment of Spatial-variant Noise Level in Real-time Dynamic MR Images - a Random Matrix Approach},
author = {Yu Ding and Yiu-Cho Chung and Orlando P. Simonetti},
journal= {arXiv preprint arXiv:0901.4027},
year = {2009}
}
Comments
This paper has been withdrawn by the authors, due to a crucial error in Eqn. 2