Evidence map›Paper›PMID 21571382›Full record

ArticleRadiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology2011

Early CT and FDG-metabolic tumour volume changes show a significant correlation with survival in stage I-III small cell lung cancer: a hypothesis generating study.

Judith van Loon, Claudia Offermann, Michel Ollers, Wouter van Elmpt, Erik Vegt, Ali Rahmy, Anne-Marie C Dingemans, Philippe Lambin, Dirk De Ruysscher

Open access · greenAbstract read
In one paragraph

Article in Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
4.1field-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.

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

18 citing papers in PubMed, 49 citations in OpenAlex.

  1. Trial
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  4. Prognostic Value ofDiagnostics (Basel, Switzerland) · 2021
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  11. Positron emission tomography/computerized tomography in lung cancer.Quantitative imaging in medicine and surgery · 2014
    Review
  12. Article
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  16. Review
  17. Article
  18. Use of FDG-PET in Radiation Treatment Planning for Thoracic Cancers.International journal of molecular imaging · 2012
    Article
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 2 institutions in 1 country.

Judith van LoonDepartment of Radiation Oncology, Maastricht University Medical Centre, The Netherlands. Judith.vanloon@maastro.nl
Claudia Offermann
Michel Ollers
Wouter van Elmpt
Erik Vegt
Ali Rahmy
Anne-Marie C Dingemans
Philippe Lambin
Dirk De Ruysscher
Maastricht University Medical Centre · NLAtrium Medisch Centrum Parkstad · NL

Funding

Radiomics of NSCLCU01CA143062 · NCI · H. LEE MOFFITT CANCER CTR & RES INST · PI GILLIES, ROBERT J., SCHABATH, MATTHEW B. · 2010 to 2020
$5.7M
NCI NIH HHS U01 CA143062
6 · The paper itself

Abstract

backgroundMany patients with stage I-III small cell lung cancer (SCLC) experience disease progression short after the completion of concurrent chemoradiotherapy (CRT). The purpose of the current study was to evaluate whether CT or FDG metabolic response early after the start of chemotherapy, but before the beginning of chest RT, is predictive for survival in SCLC.

methodsFifteen stage I-III SCLC patients treated with concurrent CRT with an FDG-PET and CT scan available before the start of chemotherapy and after or during the first cycle of chemotherapy, but before the start of radiotherapy, were selected. The metabolic volume (MV) was defined both within the primary tumour and in the involved nodal stations using the 40% (MV40) and 50% (MV50) threshold of the maximum SUV. Metabolic and CT response was assessed by the relative change in MV and CT volume, respectively, between both time points. The association between response and overall survival (OS) was analysed by univariate cox regression analysis. The minimum follow-up was 18 months.

resultsReductions in MV40 and MV50 were -36±38% (126.4 to 68.7cm(3)) and -44±38% (90.2 to 27.8cm(3)), respectively. The median CT volume reduction was -40±64% (190.6 to 113.8cm(3)). MV40 and MV50 changes showed a significant association with survival (HR=1.02, 95% CI: 1.00-1.04 (p=0.042); HR=1.02, 95% CI: 1.00-1.04 (p=0.048), respectively), indicating a 2% increase in survival probability for 1% reduction in metabolic volume. The CT volume change was also significantly correlated with survival (HR=1.01, 95% CI: 1.00-1.03, p=0.007).

conclusionsThis hypothesis generating study shows that both the early CT and the MV changes show a significant correlation with survival in SCLC. A prospective study is planned in a larger patient cohort to allow multivariate analysis, with the final aim to select patients early during treatment that could benefit from dose intensification or alternative treatment.

Indexed as

AgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsBronchoscopyCombined Modality TherapyContrast MediaDisease ProgressionFemaleFluorodeoxyglucose F18Follow-Up StudiesHumansLung NeoplasmsMaleMiddle AgedNeoplasm StagingPositron-Emission TomographyContrast MediaFluorodeoxyglucose F18Radiopharmaceuticals

Identifiers

PMID21571382
PMCPMC4555839
OpenAlexW2152625043

What OpenQuestion holds

Textmetadata
LicenceTDM
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.