# A PET reconstruction formulation that enforces non-negativity in projection space for bias reduction in Y-90 imaging

> Research article (Physics in Medicine and Biology, 2018) · cited 24× · AI/ML

**Wikidata**: [openalex:W2783292715](https://www.wikidata.org/wiki/openalex:W2783292715)  
**Source**: https://4ort.xyz/entity/a-pet-reconstruction-formulation-that-enforces-non-negativity-in-projection-space-for-bias-reduction-in-y-90-imaging