Sequence schematic for the cine spiral DENSE sequence with zonal excitation (a). Example strain curves (b) and magnitude images (c) acquired in one example subject. Data from the long, medium and short acquisitions are shown as solid, dashed and dotted lines respectively. The coloured lines show the mean strain values from 6 equal angle segments and the black lines show the global short axis mean values. There is a good agreement between all three acquisitions.