The impact of time between staging PET/CT and definitive chemo-radiation on target volumes and survival in patients with non-small cell lung cancer

Sarah Jane Everitt, Nikki Plumridge, Alan Herschtal, Matias Bressel, David Ball, Jason W Callahan, Tomas Kron, Michal Elisabeth Schneider-Kolsky, David Binns, Rodney Hicks, Michael MacManus

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48 Citations (Scopus)

Abstract

BACKGROUND AND PURPOSE: To investigate the impact of treatment delays on radiation therapy (RT) target volumes and overall survival (OS) in patients with non-small cell lung cancer (NSCLC) who underwent two baseline FDG PET/CT scans. MATERIAL AND METHODS: Patients underwent a staging (PET1) and RT planning (PET2) FDG PET/CT scan. At PET1 all patients were eligible for radical chemo-RT. OS and progression-free survival (PFS) were compared for patients remaining eligible for radical RT and those treated palliatively because PET2 showed progression. RT target volumes were contoured using PET1 and PET2. Normal tissue doses were compared for patients remaining eligible for radical RT. RESULTS: Eighty-two patients underwent PET2 scans between October 2004 and February 2007. Of these, 21 had a prior PET1 scan, median 23days apart (range 8-176days). Six patients (29 ) were unsuitable for radical RT after PET2; five received palliative treatment and one received no treatment. Patients treated palliatively had significantly worse OS and PFS than patients treated radically p
Original languageEnglish
Pages (from-to)288 - 291
Number of pages4
JournalRadiotherapy and Oncology
Volume106
Issue number3
DOIs
Publication statusPublished - 2013

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