Evidence map›Paper›PMID 23382287›Full record

ArticleNeuro-oncology2013

Vascular change measured with independent component analysis of dynamic susceptibility contrast MRI predicts bevacizumab response in high-grade glioma.

Peter S LaViolette, Alex D Cohen, Melissa A Prah, Scott D Rand, Jennifer Connelly, Mark G Malkin, Wade M Mueller, Kathleen M Schmainda

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

25 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
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  4. Probabilistic independent component analysis of dynamic susceptibility contrast perfusion MRI in metastatic brain tumors.Cancer imaging : the official publication of the International Cancer Imaging Society · 2019
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  7. Review
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  13. Review
  14. Impact of Software Modeling on the Accuracy of Perfusion MRI in Glioma.AJNR. American journal of neuroradiology · 2015
    Article
  15. Glioblastoma: Defining Tumor Niches.Trends in cancer · 2015
    Article
  16. Review
  17. Lessons from anti-vascular endothelial growth factor and anti-vascular endothelial growth factor receptor trials in patients with glioblastoma.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2015
    Article
  18. Article
  19. Article
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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

8 authors at 1 institution in 1 country.

Peter S LaVioletteDepartment of Radiology, Medical College of Wisconsin, 8701 Watertown Plank Rd., Milwaukee, WI 53226, USA. plaviole@mcw.edu
Alex D Cohen
Melissa A Prah
Scott D Rand
Jennifer Connelly
Mark G Malkin
Wade M Mueller
Kathleen M Schmainda
Medical College of Wisconsin · US

Funding

Clincal and Translational Science AwardUL1TR000055 · NCATS · MEDICAL COLLEGE OF WISCONSIN · PI SHAKER, REZA NONE · 2012 to 2015
$11.3M
MRI CONTRAST AGENT METHODS TO ASSESS TUMOR ANGIOGENESISR01CA082500 · NCI · MEDICAL COLLEGE OF WISCONSIN · PI SCHMAINDA, KATHLEEN MARIE · 2000 to 2016
$5.0M
NCATS NIH HHS UL1 TR000055NCI NIH HHS R01 CA082500
6 · The paper itself

Abstract

backgroundStandard pre- and postcontrast (T1 + C) anatomical MR imaging is proving to be insufficient for accurately monitoring bevacizumab treatment response in recurrent glioblastoma (GBM). We present a novel imaging biomarker that detects abnormal tumor vasculature exhibiting both arterial and venous perfusion characteristics. We hypothesized that a decrease in the extent of this abnormal vasculature after bevacizumab treatment would predict treatment efficacy and overall survival.

methodsDynamic susceptibility contrast perfusion MRI was gathered in 43 patients with high-grade glioma. Independent component analysis separated vasculature into arterial and venous components. Voxels with perfusion characteristics of both arteries and veins (ie, arterio-venous overlap [AVOL]) were measured in patients with de novo untreated GBM and patients with recurrent high-grade glioma before and after bevacizumab treatment. Treated patients were separated on the basis of an increase or decrease in AVOL volume (+/-ΔAVOL), and overall survival following bevacizumab onset was then compared between +/-ΔAVOL groups.

resultsAVOL in untreated GBM was significantly higher than in normal vasculature (P < .001). Kaplan-Meier survival curves revealed a greater median survival (348 days) in patients with GBM with a negative ΔAVOL after bevacizumab treatment than in patients with a positive change (197 days; hazard ratio, 2.51; P < .05). Analysis of patients with combined grade III and IV glioma showed similar results, with median survivals of 399 days and 153 days, respectively (hazard ratio, 2.71; P < .01). Changes in T1+C volume and ΔrCBV after treatment were not significantly different across +/-ΔAVOL groups, and ΔAVOL was not significantly correlated with ΔT1+C or ΔrCBV.

conclusionsThe independent component analysis dynamic susceptibility contrast-derived biomarker AVOL adds additional information for determining bevacizumab treatment efficacy.

Indexed as

Contrast MediaMagnetic Resonance ImagingWavelet AnalysisAngiogenesis InhibitorsAntibodies, Monoclonal, HumanizedBevacizumabBrain NeoplasmsFollow-Up StudiesGlioblastomaHumansNeoplasm GradingNeovascularization, PathologicPrognosisRetrospective StudiesSurvival RateAngiogenesis InhibitorsAntibodies, Monoclonal, HumanizedBevacizumabContrast Media

Identifiers

PMID23382287
PMCPMC3607265
OpenAlexW2125053937

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.