Denoising and spatial resolution enhancement of 4D flow MRI using proper orthogonal decomposition and lasso regularization. - Mojtaba F. Fathi; Ali Bakhshinejad; Ahmadreza Baghaie; David Saloner; Raphael H. Sacho; Vitaliy L. Rayz; Roshan M. D'Souza (Comput. Medical Imaging Graph., 2018)