Evidence map›Paper›PMID 24947265›Full record

ReviewFuture oncology (London, England)2014

Postradiation imaging changes in the CNS: how can we differentiate between treatment effect and disease progression?

Amanda J Walker, Jake Ruzevick, Ashkan A Malayeri, Daniele Rigamonti, Michael Lim, Kristin J Redmond, Lawrence Kleinberg

Registry-linked trialAbstract readReview
In one paragraph

Review in Future oncology (London, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03068520 (Imaging After Stereotactic Radiosurgery for Brain Metastases or Primary Tumor Can Hybrid PET-MRI Differentiate Between Radiation Effects and Disease ?), which is not on this map. Cited by 86 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed, 2 pooled it
4.6field-weighted citation impact, top 5% 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.

NCT03068520 naunknown statusnot on this mapstarted 2017, after this paper: background citation

Imaging After Stereotactic Radiosurgery for Brain Metastases or Primary Tumor Can Hybrid PET-MRI Differentiate Between Radiation Effects and Disease ?

TypeinterventionalSponsorAssuta Medical CenterRan2017 to 2018Enrolled140ConditionsBrain TumorArmsPET MR
3 · Its place in the literature

Who cites it

86 citing papers in PubMed, 2 syntheses or guidelines pooled it, 198 citations in OpenAlex.

  1. Failure of gamma knife radiosurgery for sporadic vestibular schwannomas: a systematic review and meta-analysis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Pooled it
  2. DEGRO practical guideline for central nervous system radiation necrosis part 1: classification and a multistep approach for diagnosis.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2022
    Guideline
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  10. A Mechanistic Model of Brain Necrosis Progression Based on Vascular Heterogeneity.International journal of radiation oncology, biology, physics · 2026
    Article
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  14. Review
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26 more citing papers are in PubMed but not listed here.

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

7 authors at 4 institutions in 1 country.

Amanda J WalkerDepartment of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA.
Jake Ruzevick
Ashkan A Malayeri
Daniele Rigamonti
Michael Lim
Kristin J Redmond
Lawrence Kleinberg
Johns Hopkins University · USJohns Hopkins Hospital · USJohns Hopkins Medicine · USSidney Kimmel Comprehensive Cancer Center · US

Funding

Translational Research Central ServicesP30CA006973 · NCI · JOHNS HOPKINS UNIVERSITY · PI Rosalie Wollett · 1985 to 2026
$208.6M
NCI NIH HHS P30 CA006973
6 · The paper itself

Abstract

A familiar challenge for neuroradiologists and neuro-oncologists is differentiating between radiation treatment effect and disease progression in the CNS. Both entities are characterized by an increase in contrast enhancement on MRI and present with similar clinical signs and symptoms that may occur either in close temporal proximity to the treatment or later in the disease course. When radiation-related imaging changes or clinical deterioration are mistaken for disease progression, patients may be subject to unnecessary surgery and/or a change from otherwise effective therapy. Similarly, when disease progression is mistaken for treatment effect, a potentially ineffective therapy may be continued in the face of progressive disease. Here we describe the three types of radiation injury to the brain based on the time to development of signs and symptoms--acute, subacute and late--and then review specific imaging changes after intensity-modulated radiation therapy, stereotactic radiosurgery and brachytherapy. We provide an overview of these phenomena in the treatment of a wide range of malignant and benign CNS illnesses. Finally, we review the published data regarding imaging techniques under investigation to address this well-known problem.

Indexed as

AnimalsBrainBrain NeoplasmsDiagnostic ImagingDisease ProgressionHumansRadiation InjuriesRadiosurgeryRadiotherapy, Image-GuidedTreatment Outcomepseudoprogressionradiation treatment effectradionecrosisradiosurgery

Identifiers

PMID24947265
PMCPMC4325371
OpenAlexW1974276072

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.