Evidence map›Paper›PMID 25923677›Full record

ArticleThe neuroradiology journal2015

Cerebral Blood Flow Changes in Glioblastoma Patients Undergoing Bevacizumab Treatment Are Seen in Both Tumor and Normal Brain.

Jalal B Andre, Seema Nagpal, Daniel S Hippe, Ali C Ravanpay, Heiko Schmiedeskamp, Roland Bammer, Gerald J Palagallo, Lawrence Recht, Greg Zaharchuk

Abstract read
In one paragraph

Article in The neuroradiology journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
2.2field-weighted citation impact, top 12% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

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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

9 authors at 4 institutions in 1 country.

Jalal B AndreDepartment of Radiology, University of Washington; Seattle, WA, USA Department of Radiology, Stanford University, Stanford, CA, USA drjalal@uw.edu.
Seema NagpalDepartment of Neurology and Neurological Sciences, Stanford University; Stanford, CA, USA.
Daniel S HippeDepartment of Radiology, University of Washington; Seattle, WA, USA.
Ali C RavanpayDepartment of Neurological Surgery, University of Washington; Seattle, WA, USA.
Heiko SchmiedeskampDepartment of Radiology, Stanford University, Stanford, CA, USA.
Roland BammerDepartment of Radiology, Stanford University, Stanford, CA, USA.
Gerald J PalagalloDepartment of Radiology, University of Washington; Seattle, WA, USA.
Lawrence RechtDepartment of Neurological Surgery, University of Washington; Seattle, WA, USA.
Greg ZaharchukDepartment of Radiology, Stanford University, Stanford, CA, USA.
Stanford University · USSeattle University · USUniversity of Washington · USNeurological Surgery · US

Funding

X-RAY COMPATIBLE RF-COIL FOR MR IMAGINGP41RR009784 · NCRR · STANFORD UNIVERSITY · PI GLOVER, GARY H · 1995 to 2011
$15.0M
Improving SENSE MRI for Spiral and Echo-planar Imaging in StrokeR01EB002711 · NIBIB · STANFORD UNIVERSITY · PI ALBERS, GREGORY W · 2003 to 2015
$5.1M
Microvascular Measures of Perfusion in Stroke RecanalizationR01NS047607 · NINDS · STANFORD UNIVERSITY · PI MOSELEY, MICHAEL E · 2004 to 2013
$4.9M
Short Axis EPI for Diffusion Tensor MRI at High FieldR01EB008706 · NIBIB · STANFORD UNIVERSITY · PI BAMMER, ROLAND · 2008 to 2011
$2.7M
Novel Acquisition Methods for Diffusion MRIR01EB006526 · NIBIB · STANFORD UNIVERSITY · PI BAMMER, ROLAND · 2009 to 2010
$791k
Real-Time MRI Motion Correction SystemR21EB006860 · NIBIB · STANFORD UNIVERSITY · PI BAMMER, ROLAND · 2007 to 2008
$415k
NCRR NIH HHS 2P41RR009784NIBIB NIH HHS 5R01EB002711NIBIB NIH HHS 5R01EB006526NIBIB NIH HHS 5R01EB008706NIBIB NIH HHS 5R21EB006860NINDS NIH HHS 5R01NS047607
6 · The paper itself

Abstract

unlabelledBevacizumab (BEV) is increasingly used to treat recurrent glioblastoma (GBM) with some reported improvement in neurocognitive function despite potential neurotoxicities. We examined the effects of BEV on cerebral blood flow (CBF) within recurrent GBM tumor and in the contralateral middle cerebral artery (MCA) territory.Post-chemoradiation patients with histologically confirmed GBM were treated with BEV and underwent routine, serial tumor imaging with additional pseudocontinuous arterial spin labeling (pcASL) following informed consent. Circular regions-of-interest were placed on pcASL images directly over the recurrent tumor and in the contralateral MCA territory. CBF changes before and during BEV treatment were evaluated in tumor and normal tissue. Linear mixed models were used to assess statistical significance.Fifty-three pcASL studies in 18 patients were acquired. Evaluation yielded lower mean tumoral CBF during BEV treatment compared with pre-treatment (45 ± 27 vs. 65 ± 27 ml/100 g/min, p = 0.002), and in the contralateral MCA territory during, compared with pre-BEV treatment (35 ± 8.4 vs. 41 ± 8.4 ml/100 g/min, p = 0.03). The decrease in mean CBF tended to be greater in the tumoral region than in the contralateral MCA, though the difference did not reach statistical significance (31% vs. 13%; p = 0.082).

conclusionsBEV administration results in statistically significant global CBF decrease with a potentially preferential decrease in tumor perfusion compared with normal brain tissue.

Indexed as

AdultAgedAged, 80 and overAngiogenesis InhibitorsAntibodies, Monoclonal, HumanizedBevacizumabBlood Flow VelocityBrain NeoplasmsCerebrovascular CirculationFemaleGlioblastomaHumansMagnetic Resonance AngiographyMaleMiddle AgedReference ValuesAngiogenesis InhibitorsAntibodies, Monoclonal, HumanizedBevacizumabarterial spin labelingbevacizumabcerebral blood flowglioblastomamagnetic resonance imaging

Identifiers

PMID25923677
PMCPMC4757160
OpenAlexW2123544476

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.