PET Quantification-Preserving Registration for Longitudinal Whole-Body PSMA PET/CT

Fryderyk Kögl, Anna Reithmeir, Daniel M. Lang +3

We adapt the diffeomorphic coarse-to-fine LapIRN architecture for longitudinal whole-body PSMA PET/CT registration in the Learn2Reg 2026 PSMAReg challenge. The method combines affi…