Tsaftaris, Sotirios A. and Offerman, Erik and Edelman, Robert R. and Koktzoglou, Ioannis  Unsupervised reconstruction for ungated ghost angiography by clustering of image features.  In: 18th Meeting of the international society for magnetic resonance in medicine, 1-7 May 2010,  Stockholm, Sweden       (Unpublished)   (2010)