Evidence map›Paper›PMID 34376721›Full record

ArticleScientific reports2021

Prediction of radiation pneumonitis after definitive radiotherapy for locally advanced non-small cell lung cancer using multi-region radiomics analysis.

Daisuke Kawahara, Nobuki Imano, Riku Nishioka, Kouta Ogawa, Tomoki Kimura, Taku Nakashima, Hiroshi Iwamoto, Kazunori Fujitaka, Noboru Hattori, Yasushi Nagata

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 4% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

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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

10 authors at 2 institutions in 1 country.

Daisuke Kawahara *Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, 1-3-2 Kagamiyama, Higashihiroshima, Hiroshima, 734-8551, Japan. daika99@hiroshima-u.ac.jp.
Nobuki Imano *Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, 1-3-2 Kagamiyama, Higashihiroshima, Hiroshima, 734-8551, Japan.
Riku NishiokaMedical and Dental Sciences Course, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan.
Kouta OgawaSchool of Medicine, Hiroshima University, Hiroshima, Japan.
Tomoki KimuraDivision of Radiation Oncology Kochi Medical School, Department of Radiology, Kochi University, Kochi, Japan.
Taku NakashimaDepartment Molecular and Internal Medicine, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan.
Hiroshi IwamotoDepartment Molecular and Internal Medicine, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan.
Kazunori FujitakaDepartment Molecular and Internal Medicine, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan.
Noboru HattoriDepartment Molecular and Internal Medicine, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan.
Yasushi NagataDepartment of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, 1-3-2 Kagamiyama, Higashihiroshima, Hiroshima, 734-8551, Japan.
Hiroshima University · JPKōchi University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To predict grade ≥ 2 radiation pneumonitis (RP) in patients with locally advanced non-small cell lung cancer (NSCLC) using multi-region radiomics analysis. Data from 77 patients with NSCLC who underwent definitive radiotherapy between 2008 and 2018 were analyzed. Radiomic feature extraction from the whole lung (whole-lung radiomics analysis) and imaging- and dosimetric-based segmentation (multi-region radiomics analysis) were performed. Patients with RP grade ≥ 2 or < 2 were classified. Predictors were selected with least absolute shrinkage and selection operator logistic regression and the model was built with neural network classifiers. A total of 49,383 radiomics features per patient image were extracted from the radiotherapy planning computed tomography. We identified 4 features and 13 radiomics features in the whole-lung and multi-region radiomics analysis for classification, respectively. The accuracy and area under the curve (AUC) without the synthetic minority over-sampling technique (SMOTE) were 60.8%, and 0.62 for whole-lung and 80.1%, and 0.84 for multi-region radiomics analysis. These were improved 1.7% for whole-lung and 2.1% for multi-region radiomics analysis with the SMOTE. The developed multi-region radiomics analysis can help predict grade ≥ 2 RP. The radiomics features in the median- and high-dose regions, and the local intensity roughness and variation were important factors in predicting grade ≥ 2 RP.

Indexed as

Area Under CurveCarcinoma, Non-Small-Cell LungHumansLung NeoplasmsRadiation PneumonitisRadiometryRadiotherapy

Identifiers

PMID34376721
PMCPMC8355298
OpenAlexW3157179041

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.