Evidence map›Paper›PMID 28885095›Full record

ArticleActa oncologica (Stockholm, Sweden)2017

Spatial rectal dose/volume metrics predict patient-reported gastro-intestinal symptoms after radiotherapy for prostate cancer.

Oscar Casares-Magaz, Ludvig Paul Muren, Vitali Moiseenko, Stine E Petersen, Niclas Johan Pettersson, Morten Høyer, Joseph O Deasy, Maria Thor

Open access · diamondAbstract read
In one paragraph

Article in Acta oncologica (Stockholm, Sweden), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Exploring the role of health-related quality of life measures in predictive modelling for oncology: a systematic review.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025
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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

8 authors at 4 institutions in 2 countries.

Oscar Casares-Magaza Department of Medical Physics , Aarhus University Hospital , Aarhus , Denmark.
Ludvig Paul Murena Department of Medical Physics , Aarhus University Hospital , Aarhus , Denmark.
Vitali Moiseenkob Department of Radiation, Medicine and Applied Sciences , University of California San Diego , San Diego , CA , USA.
Stine E Petersenc Department of Radiation Oncology , Aarhus University Hospital , Aarhus , Denmark.
Niclas Johan Petterssonb Department of Radiation, Medicine and Applied Sciences , University of California San Diego , San Diego , CA , USA.
Morten Høyerd Danish Center for Particle Therapy , Aarhus University Hospital , Aarhus , Denmark.
Joseph O Deasye Department of Medical Physics , Memorial Sloan Kettering Cancer Center , New York City , NY , USA.
Maria Thore Department of Medical Physics , Memorial Sloan Kettering Cancer Center , New York City , NY , USA.
Aarhus University Hospital · DKMemorial Sloan Kettering Cancer Center · USUniversity of California, San Diego · USCentre for Cosmology and Particle Physics Phenomenology · DK

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

backgroundGastro-intestinal (GI) toxicity after radiotherapy (RT) for prostate cancer reduces patient's quality of life. In this study, we explored associations between spatial rectal dose/volume metrics and patient-reported GI symptoms after RT for localized prostate cancer, and compared these with those of dose-surface/volume histogram (DSH/DVH) metrics. MATERIAL AND

methodsDose distributions and six GI symptoms (defecation urgency/emptying difficulties/fecal leakage, ≥Grade 2, median follow-up: 3.6 y) were extracted for 200 patients treated with image-guided RT in 2005-2007. Three hundred and nine metrics assessed from 2D rectal dose maps or DSHs/DVHs were subject to 50-times iterated five-fold cross-validated univariate and multivariate logistic regression analysis (UVA, MVA). Performance of the most frequently selected MVA models was evaluated by the area under the receiving-operating characteristics curve (AUC).

resultsThe AUC increased for dose-map compared to DSH/DVH-based models (mean SD: 0.64 ± 0.03 vs. 0.61 ± 0.01), and significant relations were found for six versus four symptoms. Defecation urgency and faecal leakage were explained by high doses at the central/upper and central areas, respectively; while emptying difficulties were explained by longitudinal extensions of intermediate doses.

conclusionsPredictability of patient-reported GI toxicity increased using spatial metrics compared to DSH/DVH metrics. Novel associations were particularly identified for emptying difficulties using both approaches in which intermediate doses were emphasized.

Indexed as

DefecationDose-Response Relationship, RadiationFecal IncontinenceGastrointestinal DiseasesHumansMaleProstatic NeoplasmsRadiation InjuriesRadiotherapy, ConformalRectum

Identifiers

PMID28885095
PMCPMC6619498
OpenAlexW2750607945

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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.