Evidence map›Paper›PMID 29970105›Full record

ArticleRadiation oncology (London, England)2018

Proton versus photon deep inspiration breath hold technique in patients with hodgkin lymphoma and mediastinal radiation : A PLANNING COMPARISON OF DEEP INSPIRATION BREATH HOLD INTENSITY MODULATION RADIOTHERAPY AND INTENSITY MODULATED PROTON THERAPY.

Christian Baues, Simone Marnitz, Andreas Engert, Wolfgang Baus, Karolina Jablonska, Antonella Fogliata, Andrés Vásquez-Torres, Marta Scorsetti, Luca Cozzi

Open access · goldAbstract readComparative Study
In one paragraph

Article in Radiation oncology (London, England), 2018. 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
7.2field-weighted citation impact, top 3% 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, 38 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

9 authors at 4 institutions in 2 countries.

Christian BauesMedical Faculty, Department of Radiation Oncology, CyberKnife Center and Radiation Reference Center of the GHSG, University of Cologne, Kerpener Str. 52, 50937 Köln, Cologne, Germany. Christian.Baues@uk-koeln.de.
Simone MarnitzMedical Faculty, Department of Radiation Oncology, CyberKnife Center and Radiation Reference Center of the GHSG, University of Cologne, Kerpener Str. 52, 50937 Köln, Cologne, Germany.
Andreas EngertMedical Faculty, Department of Hematology and Oncology, University of Cologne, Cologne, Germany.
Wolfgang BausMedical Faculty, Department of Radiation Oncology, CyberKnife Center and Radiation Reference Center of the GHSG, University of Cologne, Kerpener Str. 52, 50937 Köln, Cologne, Germany.
Karolina JablonskaMedical Faculty, Department of Radiation Oncology, CyberKnife Center and Radiation Reference Center of the GHSG, University of Cologne, Kerpener Str. 52, 50937 Köln, Cologne, Germany.
Antonella FogliataRadiotherapy and Radiosurgery, Humanitas Cancer Center and Research Hospital, Milan, Italy.
Andrés Vásquez-TorresMedical Faculty, Department of Radiation Oncology, CyberKnife Center and Radiation Reference Center of the GHSG, University of Cologne, Kerpener Str. 52, 50937 Köln, Cologne, Germany.
Marta ScorsettiRadiotherapy and Radiosurgery, Humanitas Cancer Center and Research Hospital, Milan, Italy.
Luca CozziRadiotherapy and Radiosurgery, Humanitas Cancer Center and Research Hospital, Milan, Italy.
University of Cologne · DEIRCCS Humanitas Research Hospital · ITGerman Inflammatory Bowel Diseases Study Group · DEHumanitas University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe benefits of proton therapy in the treatment of patients with Hodgkin lymphoma (HL) are controversially discussed. Therefore we compared intensitiy modulated proton therapy (IMPT) with intensity modulated radiotherapy (IMRT), in the form of volumetric modulated arc therapy (VMAT) in patients with Hodgkin lymphoma (HL), through a comparative treatment planning study.

methodsRadiation plans for 21 patients with Hodgkin Lymphoma (HL) were computed for IMPT and deep inspiration breath hold (DIBH) VMAT. Plans were optimized and computed assuming deep inspiration breath holding conditions. Dosimetric comparison on standard metrics from dose volume histograms was performed to appraise the relative merits of the two techniques, while proton plan robustness was assessed by re-computing the dose distribution of each plan by varying the Hounsfield Units to stopping power calibration by applying a ± 3 and 4% error.

resultsDIBH-VMAT and IMPT both provided excellent coverage, conformity and heterogeneity of the clinical target volume (CTV) and planning target volume (PTV). IMPT reduced mean doses to the breasts, lungs, heart and normal tissue by 38-83%. IMPT significantly reduced mean doses to the heart to < 5 Gy despite bulky mediastinal disease and decreased breast doses in female patients to < 1 Gy. Despite the simulated 3 and 4% miscalibration errors, no remarkable or measurable impact was observed on the organs at risk (OARs).

conclusionsThis is the first comparison between DIBH-VMAT and IMPT in HL treatment. We could demonstrate statistically significant decreases in all dose/volume metrics of the OARs. Regardless of the planning paradigm used, range uncertainties can substantially under dose the PTV, while perhaps not leading to clinically significant deterioration of CTV coverage. With the geometry applied no impact was observed for OARs, suggesting IMPT as a superior technique for potentially reducing future health risks for HL patients.

Indexed as

Breath HoldingRadiotherapy Planning, Computer-AssistedAdultCalibrationFemaleHodgkin DiseaseHumansInhalationMaleMediastinal NeoplasmsOrgans at RiskPhotonsProton TherapyRadiotherapy DosageRadiotherapy, Intensity-ModulatedHodgkin lymphomaProton beam therapyRange uncertaintiesVMAT

Identifiers

PMID29970105
PMCPMC6029162
OpenAlexW2809837564

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.