Intercentre reproducibility of second eigenvector orientation in cardiac diffusion tensor imaging. Issue 1 (December 2016) - Tunnicliffe, Elizabeth; Ferreira, Pedro; Scott, Andrew; Ariga, Rina; McGill, Laura-Ann; Nielles-Vallespin, Sonia; Neubauer, Stefan; Pennell, Dudley; Robson, Matthew; Firmin, David