Wagner, Daniela Melanie

[["dc.bibliographiccitation.firstpage","455"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Radiotherapy and Oncology"],["dc.bibliographiccitation.lastpage","460"],["dc.bibliographiccitation.volume","91"],["dc.contributor.author","Vorwerk, Hilke"],["dc.contributor.author","Beckmann, Gabriele"],["dc.contributor.author","Bremer, Michael"],["dc.contributor.author","Degen, Maria"],["dc.contributor.author","Dietl, Barbara"],["dc.contributor.author","Fietkau, Rainer"],["dc.contributor.author","Gsaenger, Tammo"],["dc.contributor.author","Hermann, Robert Michael"],["dc.contributor.author","Herrmann, Markus Karl Alfred"],["dc.contributor.author","Hoeller, Ulrike"],["dc.contributor.author","van Kampen, Michael"],["dc.contributor.author","Koerber, Wolfgang"],["dc.contributor.author","Maier, Burkhard"],["dc.contributor.author","Martin, Thomas"],["dc.contributor.author","Metz, Michael"],["dc.contributor.author","Richter, Ronald"],["dc.contributor.author","Siekmeyer, Birgit"],["dc.contributor.author","Steder, Martin"],["dc.contributor.author","Wagner, Daniela"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Weiss, Elisabeth"],["dc.contributor.author","Christiansen, Hans"],["dc.date.accessioned","2018-11-07T08:29:37Z"],["dc.date.available","2018-11-07T08:29:37Z"],["dc.date.issued","2009"],["dc.description.abstract","Purpose: Differences in the delineation of the gross target volume (GTV) and planning target volume (PTV) in patients with non-small-cell lung cancer are considerable. The focus of this work is on the analysis of observer-related reasons while controlling for other variables. Methods: In three consecutive patients, eighteen physicians from fourteen different departments delineated the GTV and M in CT-slices using a detailed instruction for target delineation. Differences in the volumes, the delineated anatomic lymph node compartments and differences in every delineated pixel of the contoured volumes in the CT-slices (pixel-by-pixel-analysis) were evaluated for different groups: ten radiation oncologists from ten departments (ROs), four haematologic oncologists and chest physicians from four departments (HOs) and five radiation oncologists from one department (RO1D). Results: Agreement (overlap >= 70% of the contoured pixels) for the GTV and PTV delineation was found in 16.3% and 23.7% (ROs), 30.4% and 38.6% (HOs) and 32.8% and 35.9% (RO1D), respectively. Conclusion: A large interobserver variability in the PTV and much more in the GTV delineation were observed in spite of a detailed instruction for delineation. The variability was smallest for group RO1D where due to repeated discussions and uniform teaching a better agreement was achieved. (C) 2009 Elsevier Ireland Ltd. All rights reserved. Radiotherapy and Oncology 91 (2009) 455-460"],["dc.identifier.doi","10.1016/j.radonc.2009.03.014"],["dc.identifier.isi","000266749200028"],["dc.identifier.pmid","19339069"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6276"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16693"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Ireland Ltd"],["dc.relation.issn","0167-8140"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","The delineation of target volumes for radiotherapy of lung cancer patients"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]