Mapping of MRI's T 2 relaxation time at low SNR using Bloch simulations and principal component analysis image denoising.

Employing MP-PCA denoising as a preprocessing step decreases noise related variability of T maps produced by the EMC algorithm and thus increases their precision. The proposed method can be useful for a wide range of clinical applications by facilitating earlier detection of pathologies and improving the accuracy of patients' follow up.