Evidence map›Paper›PMID 36727074›Full record

ArticleFrontiers in oncology2022

Different meaning of the mean heart dose between 3D-CRT and IMRT for breast cancer radiotherapy.

Jessica Prunaretty, Celine Bourgier, Sophie Gourgou, Claire Lemanski, David Azria, Pascal Fenoglietto

Open access · goldAbstract read
In one paragraph

Article in Frontiers in oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 8% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Review
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  4. Article
  5. Article
  6. Heart is a heavy burden: cardiac toxicity in radiation oncology.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
    Review
  7. 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

6 authors at 3 institutions in 1 country.

Jessica PrunarettyInstitut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Montpellier, France.
Celine BourgierInstitut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Montpellier, France.
Sophie GourgouBiostatistics Department, Institut du Cancer de Montpellier, Montpellier, France.
Claire LemanskiInstitut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Montpellier, France.
David AzriaInstitut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Montpellier, France.
Pascal FenogliettoInstitut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Montpellier, France.
Institut de Recherche en Cancérologie de Montpellier · FRInserm · FRUniversité de Montpellier · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Previous studies in 2D and in 3D conformal radiotherapy concludes that the maximal heart distance and the mean heart dose (MHD) are considered predictive of late cardiac toxicities. As the use of inverse-planned intensity modulated radiation therapy (IMRT) is increasing worldwide, we hypothesized that this 3D MHD might not be representative of heart exposure after IMRT for breast cancer (BC). Methods: Patients with left-sided BC and unfavorable cardiac anatomy received IMRT. Their treatment plan was compared to a virtual treatment plan for 3D conformal radiotherapy with similar target volume coverage (study A). Then, a second 3D conformal treatment plan was generated to achieve equivalent individual MHD obtained by IMRT. Then the heart and left anterior descending (LAD) coronary artery exposures were analyzed (study B). Last, the relationship between MHD and the heart volume or LAD coronary artery volume receiving at least 30Gy, 40Gy and 45Gy in function of each additional 1Gy to the MHD was assessed (study C). Results: A significant decrease of heart and LAD coronary artery exposure to high dose was observed with the IMRT compared with the 3D conformal radiotherapy plans that both ensured adequate target coverage (study A). The results of study B and C showed that 3D MHD was not representative of similar heart substructure exposure with IMRT, especially in the case of high dose exposure. Conclusions: The mean heart dose is not a representative dosimetric parameter to assess heart exposure following IMRT. Equivalent MHD values following IMRT and 3DRT BC treatment do not represent the same dose distribution leading to extreme caution when using this parameter for IMRT plan validation.

Indexed as

3D-CRTbreast cancer radiotherapyheart exposureIMRTmean heart dose

Identifiers

PMID36727074
PMCPMC9886087
OpenAlexW4316363190

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.