Evidence map›Paper›PMID 19108742›Full record

Trial reportRadiation oncology (London, England)2008

[(18)F]Fluoroethyltyrosine- positron emission tomography-guided radiotherapy for high-grade glioma.

Damien C Weber, Thomas Zilli, Franz Buchegger, Nathalie Casanova, Guy Haller, Michel Rouzaud, Philippe Nouet, Giovanna Dipasquale, Osman Ratib, Habib Zaidi and 2 more

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Radiation oncology (London, England), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 122 citations in OpenAlex.

  1. Pooled it
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  4. Potential impact of [Radiation oncology (London, England) · 2025
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  7. Initial Experience ofWorld journal of nuclear medicine · 2023
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  16. Evaluation of factors influencingNeuroImage. Clinical · 2018
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 1 institution in 1 country.

Damien C WeberDepartment of Radiation Oncology, Geneva University Hospital, Geneva, Switzerland. damien.weber@hcuge.ch
Thomas Zilli
Franz Buchegger
Nathalie Casanova
Guy Haller
Michel Rouzaud
Philippe Nouet
Giovanna Dipasquale
Osman Ratib
Habib Zaidi
Hansjorg Vees
Raymond Miralbell
University Hospital of Geneva · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo compare morphological gross tumor volumes (GTVs), defined as pre- and postoperative gadolinium enhancement on T1-weighted magnetic resonance imaging to biological tumor volumes (BTVs), defined by the uptake of (18)F fluoroethyltyrosine (FET) for the radiotherapy planning of high-grade glioma, using a dedicated positron emission tomography (PET)-CT scanner equipped with three triangulation lasers for patient positioning.

methodsNineteen patients with malignant glioma were included into a prospective protocol using FET PET-CT for radiotherapy planning. To be eligible, patients had to present with residual disease after surgery. Planning was performed using the clinical target volume (CTV = GTV union or logical sum BTV) and planning target volume (PTV = CTV + 20 mm). First, the interrater reliability for BTV delineation was assessed among three observers. Second, the BTV and GTV were quantified and compared. Finally, the geometrical relationships between GTV and BTV were assessed.

resultsInterrater agreement for BTV delineation was excellent (intraclass correlation coefficient 0.9). Although, BTVs and GTVs were not significantly different (p = 0.9), CTVs (mean 57.8 +/- 30.4 cm(3)) were significantly larger than BTVs (mean 42.1 +/- 24.4 cm(3); p < 0.01) or GTVs (mean 38.7 +/- 25.7 cm(3); p < 0.01). In 13 (68%) and 6 (32%) of 19 patients, FET uptake extended >or= 10 and 20 mm from the margin of the gadolinium enhancement.

conclusionUsing FET, the interrater reliability had excellent agreement for BTV delineation. With FET PET-CT planning, the size and geometrical location of GTVs and BTVs differed in a majority of patients.

Indexed as

Fluorine RadioisotopesPositron-Emission TomographyRadiopharmaceuticalsAdultAgedBrain NeoplasmsFemaleGliomaHumansMaleMiddle AgedObserver VariationRadiotherapy Planning, Computer-AssistedTyrosineFluorine RadioisotopesRadiopharmaceuticalsTyrosine

Identifiers

PMID19108742
PMCPMC2628662
OpenAlexW1983511259

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.