Meeting Banner
Abstract #2959

Temporal Phase Correction of Quantitative T2 Data

Thorarin A. Bjarnason1, Cheryl R. McCreary1, Jeff F. Dunn1, J Ross Mitchell1

1University of Calgary, Calgary, AB, Canada

Magnetic resonance images are formed typically by taking the magnitude of reconstructed complex values. The magnitude operation changes the noise distribution from Gaussian to Rician. This operation causes artifacts in T2 distributions calculated using the non-negative least squares algorithm. The artifacts caused by non-Gaussian noise distributions are becoming more relevant as scientists begin to identify tissue compartments with small intensity long T2 decays. Here we propose, and examine, a temporal phase correction method allowing T2 distributions to be created from complex quantitative T2 data.