# Cardiac Motion Tracking

Cardiac motion tracking from cine magnetic resonance previously either lacked anatomical correspondence across subjects or relied on a slow, error-prone manual atlas fit. CardioDrift generalises coherent point drift to jointly register the left-ventricular endocardium, epicardium and right-ventricular atlas surfaces, and estimates per-slice translations inside the same probabilistic model to correct slice misalignment, fitting and propagating the atlas automatically from short-axis segmentation contours alone. On 1,301 UK Biobank subjects and the M&M dataset, its rigid fitting and non-rigid propagation lead every distance and overlap metric against the strongest baseline.

Cardiac motion tracking from cine magnetic resonance previously either lacked anatomical correspondence across subjects or relied on a slow, error-prone manual atlas fit. CardioDrift generalises coherent point drift to jointly register the left-ventricular endocardium, epicardium and right-ventricular atlas surfaces, and estimates per-slice translations inside the same probabilistic model to correct slice misalignment, fitting and propagating the atlas automatically from short-axis segmentation contours alone. On 1,301 UK Biobank subjects and the M&M dataset, its rigid fitting and non-rigid propagation lead every distance and overlap metric against the strongest baseline.