# Unsupervised 3D PET-CT Image Registration Method Using a Metabolic Constraint Function and a Multi-Domain Similarity Measure

> Research article (IEEE Access, 2020) · cited 15× · AI/ML

**Wikidata**: [openalex:W3014726374](https://www.wikidata.org/wiki/openalex:W3014726374)  
**Source**: https://4ort.xyz/entity/unsupervised-3d-pet-ct-image-registration-method-using-a-metabolic-constraint-function-and-a-multi-domain-similarity-mea