Figure 6:

Image shows pediatric dataset. Cardiac motion estimation network (CarMEN) outperforms optimization-based methods across various subgroups and ages. First and second columns correspond to heart at systole and diastole, accordingly. Moving image at systole is warped to diastole position by using predicted motion estimates for each method. Two healthy participants and two patients are shown. CarMEN is more robust to image artifacts relative to optimization methods such as Insight Segmentation and Registration Toolkit (ITK) BSpline 1 and Vampire (black arrows). Papillary muscles disappear in some optimization-based methods but are preserved by proposed method (white arrows). CarMEN does a better job at preserving anatomy relative to ITK BSpline 1 (arrowheads). COART = coarctation of the aorta.