FDG-PET is a Prognostic Factor of Relapse-free Survival in Stage I Non-small Cell Lung Cancer Treated with 3-dimensional Non-coplanar Conformal Radiotherapy

Purpose/Objective(s): For solitary non-small cell lung cancers (NSCLC), we have been using 3-dimensional non-coplanar conformal radiotherapy (3DNCCRT) with middle-sized fractions with a fairly good treatment results. Maximum uptake value of FDG has been reported to correlate with the activity of the tumor, and thus with the prognosis of the tumor. We investigated whether the prognosis of our cases were correlated with the SUV-max of FDG-PET scan prior to the conformal radiotherapy.