Variability in lutetium-177 SPECT quantification between different state-of-the-art SPECT/CT systems.
Steffie M B PetersSebastiaan L Meyer ViolNiels R van der WerfNick de JongFloris H P van VeldenAntoi MeeuwisMark W KonijnenbergMartin GotthardtHugo W A M de JongMarcel SegbersPublished in: EJNMMI physics (2020)
This study shows that eliminating sources of possible variation drastically reduces inter-system variation in quantification. This means that absolute SPECT quantification for 177Lu is feasible in a multi-center and multi-vendor setting; however, close agreement between vendors and sites is key for multi-center dosimetry and quantitative biomarker studies.