Enhanced Extraction of Blood and Tissue Time-Activity Curves in Cardiac Mouse FDG PET Imaging by Means of Constrained Nonnegative Matrix Factorization. - Otman Sarrhini; Pedro D'Orléans-Juste; Jacques A. Rousseau; Jean-François Beaudoin; Roger Lecomte (Int. J. Biomed. Imaging, 2023)