Typical frames of cardiac sequences before a) and after b) motion correction (with FT). The frames are annotated with epi- and endocardial contours. + (near arrows) indicates the annotated displacement evaluation point. (c) Example time-intensity curves in time domain and d) in the frequency domain. The motion artifacts visible in the time domain show up as additional high-frequency content in the frequency domain. e,f) Bland-Altman plots with ICA and FT estimates of relative upslopes in e) rest and f) stress sequences, compared to expert annotations. The means are denoted with a dashed line for ICA and a solid line for FT. For clarity, confidence boundaries have been left out.