Evidence map›Paper›PMID 41146436›Full record

ArticleActa oncologica (Stockholm, Sweden)2025

Ultra-hypofractionated radiotherapy with focal boost for high-risk localized prostate cancer (HYPO-RT-PC-boost): in silico evaluation with histological reference.

Erik Nilsson, Anneli Nilsson, Joakim Jonsson, Kristina Sandgren, Josefine Grefve, Jan Axelsson, Angsana K Lindberg, Karin Söderkvist, Camilla T Karlsson, Björn Zackrisson and 7 more

Abstract read
In one paragraph

Article in Acta oncologica (Stockholm, Sweden), 2025. 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
–field-weighted citation impact
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.

  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

17 authors.

Erik NilssonDepartment of Diagnostics and Intervention, Radiation Physics, Umeå University, Umeå, Sweden. erik.a.nilsson@umu.se.ORCID 0000-0001-8747-4759
Anneli NilssonDepartment of Diagnostics and Intervention, Radiation Physics, Umeå University, Umeå, Sweden.ORCID 0009-0003-8430-4166
Joakim JonssonDepartment of Diagnostics and Intervention, Radiation Physics, Umeå University, Umeå, Sweden.ORCID 0009-0001-0567-0666
Kristina SandgrenDepartment of Diagnostics and Intervention, Radiation Physics, Umeå University, Umeå, Sweden.ORCID 0000-0001-8890-241X
Josefine GrefveDepartment of Diagnostics and Intervention, Radiation Physics, Umeå University, Umeå, Sweden.ORCID 0000-0002-3488-7784
Jan AxelssonDepartment of Diagnostics and Intervention, Radiation Physics, Umeå University, Umeå, Sweden.ORCID 0000-0002-3731-3612
Angsana K LindbergDepartment of Diagnostics and Intervention, Radiation Physics, Umeå University, Umeå, Sweden.ORCID 0000-0002-1612-6957
Karin SöderkvistDepartment of Diagnostics and Intervention, Oncology, Umeå University, Umeå, Sweden.ORCID 0000-0002-3683-3763
Camilla T KarlssonDepartment of Diagnostics and Intervention, Oncology, Umeå University, Umeå, Sweden.ORCID 0000-0002-7061-7255
Björn ZackrissonDepartment of Diagnostics and Intervention, Oncology, Umeå University, Umeå, Sweden.ORCID 0000-0002-5219-4682
Sara StrandbergDepartment of Diagnostics and Intervention, Diagnostic Radiology, Umeå University, Umeå, Sweden.ORCID 0000-0002-0943-8178
Katrine RiklundDepartment of Diagnostics and Intervention, Diagnostic Radiology, Umeå University, Umeå, Sweden.ORCID 0000-0001-5227-8117
Anders BerghDepartment of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden.ORCID 0000-0001-5163-5821
Mathieu MoreauDepartment of Hematology, Oncology and Radiation Physics, Skane University Hospital, Lund University, Lund, Sweden.ORCID 0009-0008-7213-9198
Adalsteinn GunnlaugssonDepartment of Hematology, Oncology and Radiation Physics, Skane University Hospital, Lund University, Lund, Sweden.ORCID 0000-0003-1354-8537
Lars E OlssonDepartment of Hematology, Oncology and Radiation Physics, Skane University Hospital, Lund University, Lund, Sweden; Department of Translational Medicine, Medical Radiation Physics, Lund University, Malmö, Sweden.ORCID 0000-0001-6090-6697
Tufve NyholmDepartment of Diagnostics and Intervention, Radiation Physics, Umeå University, Umeå, Sweden.ORCID 0000-0002-8971-9788

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeThe study aims to evaluate dosimetric properties of hypofractionated treatment plans integrating focal boost, using registered whole-mount histopathology (WMHP) as reference standard.

methodsFifteen men from the PAMP trial (EudraCT: 2015-005046-55) were included. Participants had ≥ 1 ISUP Grade group ≥ 4 lesion and underwent [68Ga]prostate-specific membrane antigen (PSMA) positron emission tomography/multiparametric magnetic resonance imaging (PET/mpMRI) and [11C]Acetate-PET/computed tomography before radical prostatectomy. Four radiation oncologists delineated gross tumor volumes (GTVs) on PSMA-PET/mpMRI. Sixty treatment plans were optimized, one per GTV and patient. Prostate planning target volumes were prescribed 42.7 Gy in seven fractions, with a simultaneous GTV boost up to 49.0 Gy, prioritizing organs at risk (OARs). Digital WMHP provided Gleason grading and was co-registered with in-vivo imaging. Target coverage for GTVs and voxels sharing Gleason patterns (GPs) was assessed via dose-volume histogram (DVH) analysis. Interobserver agreement in GTV-delineations was quantified with Fleiss' kappa.

resultsThe median GTV dose per plan (D50) ranged from 48.3 to 49.1 Gy. For voxels with the highest GP, D50 was 42.9-49.2 Gy, exceeding 47.2 Gy in all except one plan. In lowest pattern voxels, D50 was 42.5-49.3 Gy, and below 43.4 Gy in over half the plans. Significant positive correlations between Fleiss' kappa and DVH parameters appeared only for GP 5 regions, specifically for Fleiss' kappa and D50 for two observers and the average D50 across observers.

interpretationThe histologically confirmed tumor was only partially boosted. Regions with more aggressive disease received better coverage. These findings provide a rational for prioritizing OARs in treatment planning.

Indexed as

Prostatic NeoplasmsRadiation Dose HypofractionationRadiotherapy Planning, Computer-AssistedAgedComputer SimulationHumansMaleMiddle AgedMultiparametric Magnetic Resonance ImagingNeoplasm GradingOrgans at RiskPositron Emission Tomography Computed TomographyProstatectomyTumor Burden

Identifiers

PMID41146436
PMCPMC12576695

What OpenQuestion holds

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LicenceCC BY
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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.