Evidence map›Paper›PMID 30229527›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2019

A prospective study of the feasibility of FDG-PET/CT imaging to quantify radiation-induced lung inflammation in locally advanced non-small cell lung cancer patients receiving proton or photon radiotherapy.

Pegah Jahangiri, Kamyar Pournazari, Drew A Torigian, Thomas J Werner, Samuel Swisher-McClure, Charles B Simone, Abass Alavi

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in European journal of nuclear medicine and molecular imaging, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.6field-weighted citation impact, top 10% 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, 27 citations in OpenAlex.

  1. Trial
  2. Review
  3. Properties of [Annals of nuclear medicine · 2024
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  4. Comparative assessment of radiation therapy-induced vasculitis using [European journal of nuclear medicine and molecular imaging · 2024
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  5. IntegratingThoracic cancer · 2022
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  6. Article
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  10. American journal of nuclear medicine and molecular imaging · 2020
    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

7 authors at 2 institutions in 1 country.

Pegah JahangiriDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
Kamyar PournazariDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
Drew A TorigianDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
Thomas J WernerDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
Samuel Swisher-McClureDepartment of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA.
Charles B SimoneDepartment of Radiation Oncology, University of Maryland School of Medicine, 22 S. Greene Street, Baltimore, MD, 21201, USA. CharlesSimone@umm.edu.
Abass AlaviDepartment of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
University of Pennsylvania · USUniversity of Maryland, Baltimore · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis prospective study assessed the feasibility of

methodsThirty-nine consecutive patients with NSCLC underwent FDG-PET/CT imaging before and after RT on a prospective study. A novel quantitative approach utilized regions of interest placed around the anatomical boundaries of the lung parenchyma and provided lung mean standardized uptake value (SUVmean), global lung glycolysis (GLG), global lung parenchymal glycolysis (GLPG) and total lung volume (LV). To quantify primary tumor metabolic response to RT, an adaptive contrast-oriented thresholding algorithm was applied to measure metabolically active tumor volume (MTV), tumor uncorrected SUVmean, tumor partial volume corrected SUVmean (tumor-PVC-SUVmean), and total lesion glycolysis (TLG). Parameters of FDG-PET/CT scans before and after RT were compared using two-tailed paired t-tests.

resultsAll tumor parameters after either proton or photon RT decreased significantly (p < 0.001). Among the 21 patients treated exclusively with proton RT, no significant increase in PVC-SUVmean or PVC-GLPG was observed in ipsilateral lungs after the PVC parameters of primary tumor were subtracted (p = 0.114 and p = 0.453, respectively). Also, there were no significant increases in SUVmean or GLG of contralateral lungs of patients who received proton RT (p = 0.841, p = 0.241, respectively). In contrast, among the nine patients who received photon RT, there was a statistically significant increase in PVC-GLPG of ipsilateral lung (p < 0.001) and in GLG of contralateral (p = 0.036) lung. In the subset of nine patients who received a combined proton and photon RT, there was a statistically significant increase in PVC-GLPG of ipsilateral lung (p < 0.001).

conclusionOur data suggest less induction of inflammatory response in both the ipsilateral and contralateral lungs of patients treated with proton compared to photon or combined proton-photon RT.

Indexed as

Carcinoma, Non-Small-Cell LungFeasibility StudiesFemaleFluorodeoxyglucose F18HumansLung NeoplasmsMalePhotonsPositron Emission Tomography Computed TomographyProton TherapyRadiation PneumonitisRadiopharmaceuticalsFluorodeoxyglucose F18RadiopharmaceuticalsFDG-PET/CTLung cancerPhoton radiotherapyProtonRadiation pneumonitis

Identifiers

PMID30229527
OpenAlexW2891870662

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.