ArticleNeuro-oncology practice2024
Comparison of different target volume delineation strategies based on recurrence patterns in adjuvant radiotherapy for glioblastoma.
Article in Neuro-oncology practice, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
6 citing papers in PubMed.
- Comparative analysis of outcome, recurrence patterns, and dosimetry in glioblastoma patients treated according to RTOG versus EORTC contouring guidelines.Neuro-oncology practice · 2026Article
- Pattern of recurrence with 1.0 cm CTV in brain glioblastoma treated with radiotherapy.Journal of neuro-oncology · 2025Article
- Potential impact of [Radiation oncology (London, England) · 2025Article
- Real-world survival and prognostic factors in WHO 2021 classified gliomas treated with chemo-radiotherapy.Scientific reports · 2025Article
- Precision radiotherapy with molecular-profiling of CNS tumours.Journal of neuro-oncology · 2025Review
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Authors and funding
8 authors.
Funding
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Abstract
Background: Radiation Therapy Oncology Group (RTOG) and the European Organization for Research and Treatment of Cancer (EORTC) recommendations are commonly used guidelines for adjuvant radiotherapy in glioblastoma. In our institutional protocol, we delineate T2-FLAIR alterations as gross target volume (GTV) with reduced clinical target volume (CTV) margins. We aimed to present our oncologic outcomes and compare the recurrence patterns and planning parameters with EORTC and RTOG delineation strategies. Methods: Eighty-one patients who received CRT between 2014 and 2021 were evaluated retrospectively. EORTC and RTOG delineations performed on the simulation computed tomography and recurrence patterns and planning parameters were compared between delineation strategies. Statistical Package for the Social Sciences (SPSS) version 23.0 (IBM, Armonk, NY, USA) was utilized for statistical analyses. Results: Median overall survival and progression-free survival were 21 months and 11 months, respectively. At a median 18 month follow-up, of the 48 patients for whom recurrence pattern analysis was performed, recurrence was encompassed by only our institutional protocol's CTV in 13 (27%) of them. For the remaining 35 (73%) patients, recurrence was encompassed by all separate CTVs. In addition to the 100% rate of in-field recurrence, the smallest CTV and lower OAR doses were obtained by our protocol. Conclusions: The current study provides promising results for including the T2-FLAIR alterations to the GTV with smaller CTV margins with impressive survival outcomes without any marginal recurrence. The fact that our protocol did not result in larger irradiated brain volume is further encouraging in terms of toxicity.
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