Wagner, Daniela Melanie

[["dc.bibliographiccitation.firstpage","593"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Radiotherapy and Oncology"],["dc.bibliographiccitation.lastpage","596"],["dc.bibliographiccitation.volume","93"],["dc.contributor.author","Wagner, Daniela"],["dc.contributor.author","Christiansen, Hans"],["dc.contributor.author","Wolff, Hendrik"],["dc.contributor.author","Vorwerk, Hilke"],["dc.date.accessioned","2018-11-07T11:21:46Z"],["dc.date.available","2018-11-07T11:21:46Z"],["dc.date.issued","2009"],["dc.description.abstract","Purpose: The analysis was designed to identify the optimal radiation technique for patients with malignant glioma Methods A volumetric-modulated radiation treatment technique (RapidArc), an IMRT technique anti a 3D conformal technique were calculated on Computed tomograms of 14 consecutive patients with malignant glioma. The treatment plans were compared with each other using dose-volume histograms Results The 3D conformal technique showed a good PTV coverage. if PTV was distant to organs at risk (OAR). If PTV was nearby OAR, the 3D technique revealed a poor PTV coverage in contrast to both intensity-modulated techniques The conventional IMRT technique showed a slightly better PTV coverage than RapidArc The advantages of RapidArc were a shorter treatment time, less monitor units and a small V(107%) Conclusions: If PTV is distant to OAR. the use of 3D conformal technique is sufficient. Otherwise an intensity-modulated technique should be used RapidArc was faster than conventional IMRT and should be preferred if PTV coverage is adequate (C) 2009 Elsevier Ireland Ltd All rights reserved Radiotherapy and Oncology 93 (2009) 593-596"],["dc.identifier.doi","10.1016/j.radonc.2009.10.002"],["dc.identifier.isi","000272762900037"],["dc.identifier.pmid","19897266"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6277"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/55855"],["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","Radiotherapy of malignant gliomas: Comparison of volumetric single arc technique (RapidArc), dynamic intensity-modulated technique and 3D conformal technique"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["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"]]

[["dc.bibliographiccitation.artnumber","77"],["dc.bibliographiccitation.journal","Radiation Oncology"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Wolff, Hendrik Andreas"],["dc.contributor.author","Wagner, Daniela M."],["dc.contributor.author","Christiansen, Hans"],["dc.contributor.author","Hess, Clemens Friedrich"],["dc.contributor.author","Vorwerk, Hilke"],["dc.date.accessioned","2018-11-07T08:39:13Z"],["dc.date.available","2018-11-07T08:39:13Z"],["dc.date.issued","2010"],["dc.description.abstract","Background: Stereotactic-Radio-Surgery (SRS) using Conformal-Arc-Therapy (CAT) is a well established irradiation technique for treatment of intracranial targets. Although small safety margins are required because of very high accuracy of patient positioning and exact online localisation, there are still disadvantages like long treatment time, high number of monitor units (MU) and covering of noncircular targets. This planning study analysed whether Rapid Arc (RA) with stereotactic localisation for single-fraction SRS can solve these problems. Methods: Ten consecutive patients were treated with Linac-based SRS. Eight patients had one or more brain metastases. The other patients presented a symptomatic vestibularis schwannoma and an atypic meningeoma. For all patients, two plans (CAT/RA) were calculated and analysed. Results: Conformity was higher for RA with additional larger low-dose areas. Furthermore, RA reduced the number of MU and the treatment time for all patients. Dose to organs at risk were equal or slightly higher using RA in comparison to CAT. Conclusions: RA provides a new alternative for single-fraction SRS irradiation combining advantages of short treatment time with lower number of MU and better conformity in addition to accuracy of stereotactic localisation in selected cases with uncomplicated clinical realization."],["dc.identifier.doi","10.1186/1748-717X-5-77"],["dc.identifier.isi","000282548200001"],["dc.identifier.pmid","20836871"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/5658"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18942"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Biomed Central Ltd"],["dc.relation.issn","1748-717X"],["dc.rights","CC BY 2.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.0"],["dc.title","Single fraction radiosurgery using Rapid Arc for treatment of intracranial targets"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]