ArticleJournal of radiation research2019
Impact of delivery characteristics on dose delivery accuracy of volumetric modulated arc therapy for different treatment sites.
Article in Journal of radiation research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- General versus site specific quantile random forest models for virtual patient-specific quality assurance of VMAT plans.Journal of applied clinical medical physics · 2026Article
- Review
- Prediction of VMAT gamma passing rates using 3D CNNs based on leaf position analysis and gradient class activation mapping for plan complexity evaluation.Medical physics · 2026Article
- Investigating and Analyzing Prognostic Factors and Their Impact on Recurrent Cervical Cancers.Cureus · 2024Review
- A comprehensive site-specific analysis of patient-specific quality assurance based on dose volume histogram of RapidArc treatment delivery.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology · 2024Article
- Improvement of deep learning prediction model in patient-specific QA for VMAT with MLC leaf position map and patient's dose distribution.Journal of applied clinical medical physics · 2023Article
- Treatment plan prescreening for patient-specific quality assurance measurements using independent Monte Carlo dose calculations.Frontiers in oncology · 2022Article
- Multi-task autoencoder based classification-regression model for patient-specific VMAT QA.Physics in medicine and biology · 2020Article
- Integration of AI and Machine Learning in Radiotherapy QA.Frontiers in artificial intelligence · 2020Review
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
This study aimed to investigate the impact of delivery characteristics on the dose delivery accuracy of volumetric modulated arc therapy (VMAT) for different treatment sites. The pretreatment quality assurance (QA) results of 344 VMAT patients diagnosed with gynecological (GYN), head and neck (H&N), rectal or prostate cancer were randomly chosen in this study. Ten metrics reflecting VMAT delivery characteristics were extracted from the QA plans. Compared with GYN and rectal plans, H&N and prostate plans had higher aperture complexity and monitor units (MU), and smaller aperture area. Prostate plans had the smallest aperture area and lowest leaf speed compared with other plans (P < 0.001). No differences in gantry speed were found among the four sites. The gamma passing rates (GPRs) of GYN, rectal and H&N plans were inversely associated with union aperture area (UAA) and leaf speed (Pearson's r: -0.39 to -0.68). GPRs of prostate plans were inversely correlated with aperture complexity, MU and small aperture score (SAS) (absolute Pearson's r: 0.34 to 0.49). Significant differences in GPR between high SAS and low SAS subgroups were found only when leaf speed was <0.42 cm s-1 (P < 0.001). No association of GPR with gantry speed was found in four sites. Leaf speed was more strongly associated with UAA. Aperture complexity and MU were more strongly associated with SAS. VMAT plans from different sites have distinct delivery characteristics. Affecting dose delivery accuracy, leaf speed is the key factor for GYN, rectal and H&N plans, while aperture complexity, MU and small apertures have a higher influence on prostate plans.
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