Mostrando 1 - 15 Resultados de 15 Para Buscar '"Assur"', tiempo de consulta: 3.67s Limitar resultados
  1. 1
    “…The purposes of this study were to develop a commissioning and quality assurance procedure for DWA irradiation, and to assess the accuracy of the mechanical motion and dosimetric control of Vero4DRT. …”
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    Online Artículo Texto
    Commissioning and quality assurance of Dynamic WaveArc irradiation
  2. 2
    “…PURPOSE: The Task Group 218 (TG‐218) report was published by the American Association of Physicists in Medicine in 2018, recommending the appropriate use of gamma index analysis for patient‐specific quality assurance (PSQA). The paper demonstrates that PSQA for radiotherapy in Japan appropriately applies the gamma index analysis considering TG‐218. …”
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    Assessment of using a gamma index analysis for patient‐specific quality assurance in Japan
  3. 3
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    Analyses of integrated EPID images for on‐treatment quality assurance to account for interfractional variations in volumetric modulated arc therapy
  4. 4
    “…The purpose of this study was to develop a simple verification method for the routine quality assurance (QA) of Dynamic WaveArc (DWA) irradiation using electronic portal imaging device (EPID) images and log data analysis. …”
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    Quality assurance of geometric accuracy based on an electronic portal imaging device and log data analysis for Dynamic WaveArc irradiation
  5. 5
    “…PURPOSE: To perform quality assurance of non-coplanar, volumetric-modulated arc therapy featuring continuous couch rotation (CCR-VMAT) using a C-arm linear accelerator. …”
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    Quality assurance of non-coplanar, volumetric-modulated arc therapy employing a C-arm linear accelerator, featuring continuous patient couch rotation
  6. 6
    “…The commissioning and benchmark of a Monte Carlo (MC) model of the 6‐MV Brainlab‐Mitsubishi Vero4DRT linear accelerator for the purpose of quality assurance of clinical dynamic wave arc (DWA) treatment plans is reported. …”
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    Monte Carlo simulation of 6‐MV dynamic wave VMAT deliveries by Vero4DRT linear accelerator using EGSnrc moving sources
  7. 7
    “…From the verification results, accuracies of the absolute dose and the irradiation localization among the participating institutions of the multicenter clinical trial were assured, and the JCOG clinical trials could be initiated.…”
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    An overview of the medical-physics-related verification system for radiotherapy multicenter clinical trials by the Medical Physics Working Group in the Japan Clinical Oncology Group–Radiation Therapy Study Group
  8. 8
    “…The survey covered facility information, staffing, patient volume, equipment volume, workload and quality assurance (QA) status. Full-time equivalent (FTE) factors were estimated from the workload and compared with several models. …”
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    A national survey on the medical physics workload of external beam radiotherapy in Japan
  9. 9
    “…These guidelines propose the essential requirements for clinical implementation of online MRgART with respect to equipment, personnel, institutional environment, practice guidance, and quality assurance/quality control (QA/QC). The minimum requirements for related equipment and QA/QC tools, recommendations for safe operation of MRI system, and the implementation system are described. …”
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    Practical guidelines of online MR-guided adaptive radiotherapy
  10. 10
    “…To understand the current state of flattening filter-free (FFF) beam implementation in C-arm linear accelerators (LINAC) in Japan, the quality assurance (QA)/quality control (QC) 2018–2019 Committee of the Japan Society of Medical Physics (JSMP) conducted a 37-question survey, designed to investigate facility information and specifications regarding FFF beam adoption and usage. …”
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    Survey on utilization of flattening filter-free photon beams in Japan
  11. 11
    “…We also developed a treatment planning technique that shortens breath‐holding time without increasing dosimetric quality assurance workload. The key feature of our proposed method is performance of dose calculation using the same optimized fluence map as the original plan, after dose per fraction in the original plan was cut in half and the number of fractions was doubled. …”
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    Effects of interportal error on dose distribution in patients undergoing breath‐holding intensity‐modulated radiotherapy for pancreatic cancer: evaluation of a new treatment planning method
  12. 12
    “…Thus, the proposed method has considerable potential as an evaluation tool for DIR credentialing and quality assurance.…”
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    Development of a physical geometric phantom for deformable image registration credentialing of radiotherapy centers for a clinical trial
  13. 13
    “…Our investigation of VMAT‐SBRT plans for lung cancer revealed that independent calculation‐based verification is a time‐efficient method for patient‐specific quality assurance.…”
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    Independent calculation‐based verification of volumetric‐modulated arc therapy–stereotactic body radiotherapy plans for lung cancer
  14. 14
    “…Independent calculation‐based quality assurance was also performed for the ADP plans, with a gamma passing rate of 3%/3 mm. …”
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    Potential utility of cone‐beam CT‐guided adaptive radiotherapy under end‐exhalation breath‐hold conditions for pancreatic cancer
  15. 15
    “…PURPOSE: The purposes of this study were two-fold: first, to develop a four-axis moving phantom for patient-specific quality assurance (QA) in surrogate signal-based dynamic tumor-tracking intensity-modulated radiotherapy (DTT-IMRT), and second, to evaluate the accuracy of the moving phantom and perform patient-specific dosimetric QA of the surrogate signal-based DTT-IMRT. …”
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    Development of a four-axis moving phantom for patient-specific QA of surrogate signal-based tracking IMRT
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