Evidence map›Paper›PMID 22711609›Full record

ArticleNeuro-oncology2012

18F-FDOPA and 18F-FLT positron emission tomography parametric response maps predict response in recurrent malignant gliomas treated with bevacizumab.

Robert J Harris, Timothy F Cloughesy, Whitney B Pope, Phioanh L Nghiemphu, Albert Lai, Taryar Zaw, Johannes Czernin, Michael E Phelps, Wei Chen, Benjamin M Ellingson

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 106 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Imaging in Neuro-oncology.Seminars in neurology · 2025
    Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Rate of change in maximumJournal of neuro-oncology · 2020
    Article
  11. Review
  12. Impacts on Histological Features andTranslational oncology · 2019
    Article
  13. Article
  14. Review
  15. Article
  16. Neuro-oncology practice · 2018
    Article
  17. Review
  18. Annals of nuclear medicine · 2017
    Review
  19. Article
  20. New Directions in Anti-Angiogenic Therapy for Glioblastoma.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2017
    Review
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

10 authors at 1 institution in 1 country.

Robert J HarrisDepartment of Radiological Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90024, USA.
Timothy F Cloughesy
Whitney B Pope
Phioanh L Nghiemphu
Albert Lai
Taryar Zaw
Johannes Czernin
Michael E Phelps
Wei Chen
Benjamin M Ellingson
University of California, Los Angeles · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The current study examined the use of voxel-wise changes in (18)F-FDOPA and (18)F-FLT PET uptake, referred to as parametric response maps (PRMs), to determine whether they were predictive of response to bevacizumab in patients with recurrent malignant gliomas. Twenty-four patients with recurrent malignant gliomas who underwent bevacizumab treatment were analyzed. Patients had MR and PET images acquired before and at 2 time points after bevacizumab treatment. PRMs were created by examining the percentage change in tracer uptake between time points in each image voxel. Voxel-wise increase in PET uptake in areas of pretreatment contrast enhancement defined by MRI stratified 3-month progression-free survival (PFS) and 6-month overall survival (OS) according to receiver-operating characteristic curve analysis. A decrease in PET tracer uptake was associated with longer PFS and OS, whereas an increase in PET uptake was associated with short PFS and OS. The volume fraction of increased (18)F-FDOPA PET uptake between the 2 posttreatment time points also stratified long- and short-term PFS and OS (log-rank, P < .05); however, (18)F-FLT uptake did not stratify OS. This study suggests that an increase in FDOPA or FLT PET uptake on PRMs after bevacizumab treatment may be a useful biomarker for predicting PFS and that FDOPA PET PRMs are also predictive of OS in recurrent gliomas treated with bevacizumab.

Indexed as

Antibodies, Monoclonal, HumanizedAntineoplastic AgentsArea Under CurveBevacizumabBrain NeoplasmsDisease-Free SurvivalFluorine RadioisotopesGliomaHumansKaplan-Meier EstimateNeoplasm Recurrence, LocalPositron-Emission TomographyPrognosisRadiopharmaceuticalsROC CurveSensitivity and SpecificityAntibodies, Monoclonal, HumanizedAntineoplastic AgentsBevacizumabFluorine RadioisotopesRadiopharmaceuticals

Identifiers

PMID22711609
PMCPMC3408264
OpenAlexW2048848878

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.