Evidence map›Paper›PMID 32293191›Full record

Trial reportThe British journal of radiology2020

Mid-position treatment strategy for locally advanced lung cancer: a dosimetric study.

M Ayadi, T Baudier, G Bouilhol, P Dupuis, P Boissard, R Pinho, A Krason, S Rit, L Claude, D Sarrut

Open access · greenAbstract readClinical Trial, Phase IIRandomized Controlled Trial
In one paragraph

Trial report in The British journal of radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

1 citing paper in PubMed, 9 citations in OpenAlex.

  1. 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

10 authors at 4 institutions in 1 country.

M AyadiRadiotherapy and Physics Department, Leon Berard Cancer Center, 28, rue Laennec F-69373, Lyon, France.
T BaudierUniv Lyon, INSA-Lyon, Université Lyon 1, CNRS, Inserm, Centre Léon Bérard, CREATIS UMR 5220, U1206, F-69373, Lyon, France.
G BouilholDepartment of Radiotherapy, Hartmann Radiotherapy Center, American Hospital of Paris, Neuilly, France.
P DupuisRadiotherapy and Physics Department, Leon Berard Cancer Center, 28, rue Laennec F-69373, Lyon, France.
P BoissardRadiotherapy and Physics Department, Leon Berard Cancer Center, 28, rue Laennec F-69373, Lyon, France.
R PinhoUniv Lyon, INSA-Lyon, Université Lyon 1, CNRS, Inserm, Centre Léon Bérard, CREATIS UMR 5220, U1206, F-69373, Lyon, France.
A KrasonUniv Lyon, INSA-Lyon, Université Lyon 1, CNRS, Inserm, Centre Léon Bérard, CREATIS UMR 5220, U1206, F-69373, Lyon, France.
S RitUniv Lyon, INSA-Lyon, Université Lyon 1, CNRS, Inserm, Centre Léon Bérard, CREATIS UMR 5220, U1206, F-69373, Lyon, France.
L ClaudeRadiotherapy and Physics Department, Leon Berard Cancer Center, 28, rue Laennec F-69373, Lyon, France.
D SarrutUniv Lyon, INSA-Lyon, Université Lyon 1, CNRS, Inserm, Centre Léon Bérard, CREATIS UMR 5220, U1206, F-69373, Lyon, France.
Centre de Recherche en Cancérologie de Lyon · FRCentre National de la Recherche Scientifique · FRInserm · FRHôpital américain de paris · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe internal target volume (ITV) strategy generates larger planning target volumes (PTVs) in locally advanced non-small cell lung cancer (LA-NSCLC) than the Mid-position (Mid-p) strategy. We investigated the benefit of the Mid-p strategy regarding PTV reduction and dose to the organs at risk (OARs).

methods44 patients with LA-NSCLC were included in a randomized clinical study to compare ITV and Mid-p strategies. GTV were delineated by a physician on maximum intensity projection images and on Mid-p images from four-dimensional CTs. CTVs were obtained by adding 6 mm uniform margin for microscopic extension. CTV to PTV margins were calculated using the van Herk's recipe for setup and delineation errors. For the Mid-p strategy, the mean target motion amplitude was added as a random error. For both strategies, three-dimensional conformal plans delivering 60-66 Gy to PTV were performed. PTVs, dose-volume parameters for OARs (lung, esophagus, heart, spinal cord) were reported and compared.

resultsWith the Mid-p strategy, the median of volume reduction was 23.5 cm

conclusionPTV and mean lung dose were significantly reduced using the Mid-p strategy. Delineation uncertainty can unfavorably impact the advantage. ADVANCES IN KNOWLEDGE: To the best of our knowledge, this is the first dosimetric comparison study between ITV and Mid-p strategies for LA-NSCLC.

Indexed as

Organ MotionRespirationAgedBrachial PlexusCarcinoma, Non-Small-Cell LungEsophagusFour-Dimensional Computed TomographyHeartHumansLungLung NeoplasmsOrgans at RiskProspective StudiesRadiation InjuriesRadiotherapy, ConformalRadiotherapy Dosage

Identifiers

PMID32293191
PMCPMC10993224
OpenAlexW3015647445

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.