End of Treatment (EoT)

Purpose

Currently, the 5-point Deauville score (DS) assesses the post-treatment response on an end-of-treatment (EOT) PET/CT scan, categorizing scans as positive or negative for complete metabolic response. However, the Positive Predictive Value (PPV) remains suboptimal at around 60%. We believe that quantitative PET parameters could optimize EOT response criteria and help avoid unnecessary subsequent treatments, such as radiotherapy. We developed a model combining clinical and PET parameters from EOT and baseline scans to improve prediction of treatment failure. This research is financially supported by the Jackstädt Stiftung.

Objectives

  • To identify quantitative EOT PET parameters that predict PFS

  • To develop a model combining EOT PET and clinical parameters

  • To explore whether integrates baseline PET quantitative features could improve prediction