PET/CT calibration for post-treatment standard body scan acquisition with yttrium-90 resin micro-SPHERES.

Introduction: Among the objectives in treatments with yttrium-90 spheres, is to demonstrate that the tumoricidal dose is achieved and that hepatotoxic doses are avoided, as well as that there is no extrahepatic deposition.

Material And Methods: We use different amounts of yttrium-90 resin micro-spheres and a NEMA NU2-2007 phantom to check if the scanner maintains a response that allows real dosimetric calculations.

Results: The Gemini tomograph responds linearly in a wide range of activities with R = 0.