In "Volumetric Analysis of 18F-FDG PET in Glioblastoma Multiforme:Prognostic Information and Possible Role in Definition of TargetVolumes in Radiation Dose Escalation," by Tralins et al. (JNucl Med. 2002;43:16671673), the name of the sixth authorwas incorrect. The correct name is Robert C. Rostomily. Theauthors regret the error.