ArticleJournal of radiation research2017
A robust measurement point for dose verification in delivery quality assurance for a robotic radiosurgery system.
Article in Journal of radiation research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.
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Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Potential Clinical Significance of Overall Targeting Accuracy and Motion Management in the Treatment of Tumors That Move With Respiration: Lessons Learnt From a Quarter Century of Stereotactic Body Radiotherapy From Dose Response Models.Frontiers in oncology · 2020Pooled it
- Development of raster scanning IMRT using a robotic radiosurgery system.Journal of radiation research · 2021Article
- Assessment of Delivery Quality Assurance for Stereotactic Radiosurgery With Cyberknife.Frontiers in oncology · 2021Article
- Technological quality requirements for stereotactic radiotherapy : Expert review group consensus from the DGMP Working Group for Physics and Technology in Stereotactic Radiotherapy.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2020Review
- Dosimetric and clinical effects of interfraction and intrafraction correlation errors during marker-based real-time tumor tracking for liver SBRT.Journal of radiation research · 2018Article
- Clinical usefulness of MLCs in robotic radiosurgery systems for prostate SBRT.Journal of applied clinical medical physics · 2017Article
- Validation of the liver mean dose in terms of the biological effective dose for the prevention of radiation-induced liver damage.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation OncologyArticle
- Dosimetric Evaluation of CyberKnife Synchrony System for Liver Tumors With Respiratory Phase Shifts.In vivo (Athens, Greece)Article
- Point Dosimetry in Patient-specific Quality Assurance of a Robotic Radiosurgery System Using a Scintillation Detector.Journal of medical physicsArticle
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Authors and funding
12 authors.
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No grant is acknowledged in the PubMed record.
Abstract
In this CyberKnife® dose verification study, we investigated the effectiveness of the novel potential error (PE) concept when applied to the determination of a robust measurement point for targeting errors. PE was calculated by dividing the differences between the maximum increases and decreases in dose distributions by the original distribution after obtaining the former by shifting the source-to-axis and off-axis distances of each beam by ±1.0 mm. Thus, PE values and measurement point dose heterogeneity were analyzed in 48 patients who underwent CyberKnife radiotherapy. Sixteen patients who received isocentric dose delivery were set as the control group, whereas 32 who received non-isocentric dose delivery were divided into two groups of smaller PE (SPE) and larger PE (LPE) by using their median PE value. The mean dose differences (± standard deviations) were 1.0 ± 0.9%, 0.5 ± 1.4% and 4.1 ± 2.8% in the control, SPE and LPE groups, respectively. We observed significant correlations of the dose difference with the PE value (r = 0.582, P < 0.001) and dose heterogeneity (r = 0.471, P < 0.001). We concluded that when determining a robust measurement point for CyberKnife point dose verification, PE evaluation was more effective than the conventional dose heterogeneity-based method that introduced optimal measurement point dose heterogeneity of <10% across the detector.
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