# SimCortex v2

SimCortex v2 reconstructs the left and right white-matter and pial cortical surfaces jointly in one shared deformation space, matching the strongest baseline's surface-distance accuracy on 560 T1-weighted MRI cases from 14 cohorts while showing no detected inter-surface collision in 92.14% of cases, whereas every baseline produced at least one collision in every case. It initializes topologically correct meshes from a volumetric segmentation, then predicts multi-scale stationary velocity fields with a ribbon-conditioned U-Net and regularizes surface separation during training.

SimCortex v2 reconstructs the left and right white-matter and pial cortical surfaces jointly in one shared deformation space, matching the strongest baseline's surface-distance accuracy on 560 T1-weighted MRI cases from 14 cohorts while showing no detected inter-surface collision in 92.14% of cases, whereas every baseline produced at least one collision in every case. It initializes topologically correct meshes from a volumetric segmentation, then predicts multi-scale stationary velocity fields with a ribbon-conditioned U-Net and regularizes surface separation during training.