Evidence map›Paper›PMID 30277536›Full record

ArticleNeuro-oncology2019

Combined iron oxide nanoparticle ferumoxytol and gadolinium contrast enhanced MRI define glioblastoma pseudoprogression.

Ramon F Barajas, Bronwyn E Hamilton, Daniel Schwartz, Heather L McConnell, David R Pettersson, Andrea Horvath, Laszlo Szidonya, Csanad G Varallyay, Jenny Firkins, Jerry J Jaboin and 11 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2019. 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
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

25 citing papers in PubMed, 44 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

21 authors at 4 institutions in 1 country.

Ramon F BarajasDepartment of Radiology, Portland, Oregon.
Bronwyn E HamiltonDepartment of Radiology, Portland, Oregon.
Daniel SchwartzAdvanced Imaging Research Center, Portland, Oregon.
Heather L McConnellDepartment of Neurology, Portland, Oregon.
David R PetterssonDepartment of Radiology, Portland, Oregon.
Andrea HorvathAdvanced Imaging Research Center, Portland, Oregon.
Laszlo SzidonyaDepartment of Neurology, Portland, Oregon.
Csanad G VarallyayDepartment of Radiology, Portland, Oregon.
Jenny FirkinsDepartment of Neurology, Portland, Oregon.
Jerry J JaboinRadiation Medicine, Portland, Oregon.
Charlotte D KubickyRadiation Medicine, Portland, Oregon.
Ahmed M RaslanNeurological Surgery, Portland, Oregon.
Aclan DoganNeurological Surgery, Portland, Oregon.
Justin S CetasNeurological Surgery, Portland, Oregon.
Jeremy CiporenNeurological Surgery, Portland, Oregon.
Seunggu J HanNeurological Surgery, Portland, Oregon.
Prakash AmbadyDepartment of Neurology, Portland, Oregon.
Leslie L MuldoonDepartment of Neurology, Portland, Oregon.
Randy WoltjerDepartment of Pathology, Oregon Health and Science University, Portland, Oregon.
William D RooneyAdvanced Imaging Research Center, Portland, Oregon.
Edward A NeuweltDepartment of Neurology, Portland, Oregon.
Neurological Surgery · USAdvanced Imaging Research (United States) · USOregon Health & Science University · USPortland VA Medical Center · US

Funding

Oregon Clinical and Translational Research Institute - The National COVID Cohort Collaborative (N3C)UL1TR002369 · NCATS · OREGON HEALTH & SCIENCE UNIVERSITY · PI Cynthia D Morris, Christopher G. Slatore · 2017 to 2026
$78.4M
A High-Performance Computing System for Advanced ImagingS10OD018224 · OD · OREGON HEALTH & SCIENCE UNIVERSITY · PI ROONEY, WILLIAM D · 2014 to 2014
$222k
Research-Dedicated PACS Server for the OHSU Advanced Imaging Research CenterS10RR027694 · NCRR · OREGON HEALTH & SCIENCE UNIVERSITY · PI BARBARA, THOMAS MICHAEL · 2010 to 2010
$102k
NCATS NIH HHS UL1 TR002369NCRR NIH HHS S10 RR027694NIH HHS S10 OD018224
6 · The paper itself

Abstract

backgroundNoninvasively differentiating therapy-induced pseudoprogression from recurrent disease in patients with glioblastoma is prospectively difficult due to the current lack of a biologically specific imaging metric. Ferumoxytol iron oxide nanoparticle MRI contrast characterizes innate immunity mediated neuroinflammation; therefore, we hypothesized that combined ferumoxytol and gadolinium enhanced MRI could serve as a biomarker of glioblastoma pseudoprogression.

methodsIn this institutional review board-approved, retrospective study, we analyzed ferumoxytol and gadolinium contrast enhanced T1-weighted 3T MRI in 45 patients with glioblastoma over multiple clinical timepoints. Isocitrate dehydrogenase 1 (IDH-1) mutational status was characterized by exome sequencing. Sum of products diameter measurements were calculated according to Response Assessment in Neuro-Oncology criteria from both gadolinium and ferumoxytol enhanced sequences. Enhancement mismatch was calculated as the natural log of the ferumoxytol to gadolinium sum of products diameter ratio. Analysis of variance and Student's t-test assessed differences in mismatch ratios. P-value <0.05 indicated statistical significance.

resultsWith the development of pseudoprogression we observed a significantly elevated mismatch ratio compared with disease recurrence (P < 0.01) within IDH-1 wild type patients. Patients with IDH-1 mutation demonstrated significantly reduced mismatch ratio with the development of pseudoprogression compared with disease recurrence (P < 0.01). Receiver operator curve analysis demonstrated 100% sensitivity and specificity for the use of mismatch ratios as a diagnostic biomarker of pseudoprogression.

conclusionOur study suggests that ferumoxytol to gadolinium contrast mismatch ratios are an MRI biomarker for the diagnosis of pseudoprogression in patients with glioblastoma. This may be due to the unique characterization of therapy-induced neuroinflammation.

Indexed as

Ferrosoferric OxideGadoliniumAdultBrain NeoplasmsContrast MediaFemaleGlioblastomaHumansMagnetic Resonance ImagingMagnetite NanoparticlesMaleMiddle AgedNeoplasm Recurrence, LocalRetrospective StudiesContrast MediaFerrosoferric OxideGadoliniumMagnetite NanoparticlesferumoxytolglioblastomamacrophagepseudoprogressionRANO

Identifiers

PMID30277536
PMCPMC6422439
OpenAlexW2894921161

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.