Evidence map›Paper›PMID 34991637›Full record

ArticleRadiation oncology (London, England)2022

An algorithm for thoracic re-irradiation using biologically effective dose: a common language on how to treat in a "no-treat zone".

Eric D Brooks, Xiaochun Wang, Brian De, Vivek Verma, Tyler D Williamson, Rachel Hunter, Abdallah S R Mohamed, Matthew S Ning, Xiaodong Zhang, Joe Y Chang

Open access · goldAbstract read
In one paragraph

Article in Radiation oncology (London, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Guideline
  2. A reirradiation workflow for managing patients with treatments planned in a multi-TPS environment.Technical innovations & patient support in radiation oncology · 2026
    Article
  3. Article
  4. Reirradiation: Evaluation of the occurrence and type in cancer treatment for lung - 2024.Technical innovations & patient support in radiation oncology · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. 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 2 institutions in 1 country.

Eric D Brooks *Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, USA.
Xiaochun Wang *Departments of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Brian DeDepartment of Radiation Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, USA.ORCID http://orcid.org/0000-0003-3468-3359
Vivek VermaDepartment of Radiation Oncology, Allegheny General Hospital, Pittsburgh, PA, USA.
Tyler D WilliamsonDepartments of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Rachel HunterDepartments of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Abdallah S R MohamedDepartments of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Matthew S NingDepartment of Radiation Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, USA.
Xiaodong ZhangDepartments of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Joe Y ChangDepartment of Radiation Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, USA. jychang@mdanderson.org.
The University of Texas MD Anderson Cancer Center · USAllegheny General Hospital · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Fabien Delerue · 1985 to 2026
$290.8M
NCI NIH HHS P30 CA016672
6 · The paper itself

Abstract

backgroundRe-irradiation (re-RT) is a technically challenging task for which few standardized approaches exist. This is in part due to the lack of a common platform to assess dose tolerance in relation to toxicity in the re-RT setting. To better address this knowledge gap and provide new tools for studying and developing thresholds for re-RT, we developed a novel algorithm that allows for anatomically accurate three-dimensional mapping of composite biological effective dose (BED) distributions from nominal doses (Gy).

methodsThe algorithm was designed to automatically convert nominal dose from prior treatment plans to corresponding BED value maps (voxel size 2.5 mm

resultsEvaluation of the algorithm-generated maps revealed appropriate conversion of physical dose to BED at each voxel. Of 14 patients receiving repeat SABR, there was one case each of grade 3 chest wall pain (7%), pneumonitis (7%), and dyspnea (7%). Of 24 patients undergoing repeat fractionated radiotherapy, grade 3 events were limited to two cases each of pneumonitis and dyspnea (8%). Composite BED

conclusionsThis novel algorithm successfully created a voxel-by-voxel composite treatment plan using BED values. This approach may be used to more precisely examine dosimetric predictors of toxicities and to establish more accurate normal tissue constraints for re-irradiation.

Indexed as

AlgorithmsAgedAged, 80 and overCarcinoma, Non-Small-Cell LungFemaleHumansLung NeoplasmsMaleMiddle AgedRadiotherapy DosageRe-IrradiationRetrospective StudiesBiologically effective doseDosimetryEquivalent doseLung cancerRe-irradiationStereotactic ablative radiotherapyStereotactic body radiation therapy

Identifiers

PMID34991637
PMCPMC8739721
OpenAlexW4206181482

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.