Evidence map›Paper›PMID 31870403›Full record

ArticleRadiation oncology (London, England)2019

Prediction of VMAT delivery accuracy with textural features calculated from fluence maps.

Jong Min Park, Jung-In Kim, So-Yeon Park

Abstract read
In one paragraph

Article in Radiation oncology (London, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

11 citing papers in PubMed.

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  5. Virtual patient-specific QA with DVH-based metrics.Journal of applied clinical medical physics · 2022
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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

3 authors.

Jong Min ParkDepartment of Radiation Oncology, Seoul National University Hospital, Seoul, Korea.
Jung-In KimDepartment of Radiation Oncology, Seoul National University Hospital, Seoul, Korea.
So-Yeon ParkInstitute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Korea. vsoyounv@gmail.com.ORCID http://orcid.org/0000-0001-5643-1457

Funding

National Research Foundation of Korea No.0411-20190090National Research Foundation of Korea No.2017M2A2A7A02020641National Research Foundation of Korea No.2017M2A2A7A02020643National Research Foundation of Korea No.2019M2A2B4095126
6 · The paper itself

Abstract

backgroundComprehensively textural feature performance test from volumetric modulated arc therapy (VMAT) fluences to predict plan delivery accuracy.

methodsA total of 240 VMAT plans for various treatment sites were analyzed, with Trilogy and TrueBeam STx systems. Fluence maps superposed fluences at each control point per plan. The textural features were the angular second moment (ASM), inverse difference moment (IDM), contrast, variance, correlation, and entropy, calculated from fluence maps using three displacement distances. Correlation analysis of textural feature performance as predictors of VMAT delivery accuracy used global gamma passing rates with MapCHECK2 and ArcCHECK dosimeters, and mechanical delivery errors calculated from machine log files.

resultsSpearman's rank correlation coefficients (r) of the ASM (d = 10) to the gamma passing rates with 1%/2 mm using the MapCHECK2 were 0.358 and 0.519, respectively (p <  0.001). For the ArcCHECK, they were 0.273 (p = 0.001) and 0.259 (p = 0.009), respectively. The r-values of the ASM (d = 10) to the Trilogy and TrueBeam STx MLC errors were - 0.843 and - 0.859, respectively (p <  0.001), and those to the MU delivery errors were - 0.482 and - 0.589, respectively (p <  0.001). The ASM (d = 10) showed better performance in predicting VMAT delivery accuracy.

conclusionsThe ASM (d = 10) calculated from VMAT plan fluence maps were strongly correlated with global gamma passing rates and MLC delivery errors, and can predict VMAT delivery accuracy.

Indexed as

AlgorithmsHumansImage Processing, Computer-AssistedNeoplasmsOrgans at RiskParticle AcceleratorsQuality Assurance, Health CareRadiotherapy DosageRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-AssistedRetrospective StudiesStatistics, NonparametricTomography, X-Ray ComputedModulation degree; plan delivery accuracyPre-treatment quality assuranceTextural featureVolumetric modulated arc therapy

Identifiers

PMID31870403
PMCPMC6929348

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LicenceCC BY
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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.