Analysis of IMRT patient specific quality assurance using EPID measurement data from the Halcyon linear accelerator. [PDF]
PLoS ONEThis study investigated the characteristics of electronic portal imaging device (EPID)-based perpendicular field-by-field patient-specific quality assurance (PFF-PSQA) on the Halcyon linear accelerator by comparing them with the true composite (TC)-PSQA ...
Shinhaeng Cho +6 more
doaj +2 more sources
A Time-Series Approach for Machine Learning-Based Patient-Specific Quality Assurance of Radiosurgery Plans [PDF]
BioengineeringStereotactic radiosurgery (SRS) for multiple brain metastases can be delivered with a single isocenter and non-coplanar arcs, achieving highly conformal dose distributions at the cost of extreme modulation of treatment machine parameters.
Simone Buzzi +13 more
doaj +2 more sources
Feasibility study of structural similarity index for patient-specific quality assurance. [PDF]
J Appl Clin Med PhysAbstractBackgroundThe traditional gamma evaluation method combines dose difference (DD) and distance‐to‐agreement (DTA) to assess the agreement between two dose distributions. However, while gamma evaluation can identify the location of errors, it does not provide information about the type of errors.PurposeThe purpose of this study is to optimize and ...
Lee JC, Park HW, Kang YN.
europepmc +3 more sources
Applications of machine and deep learning to patient‐specific IMRT/VMAT quality assurance [PDF]
Journal of Applied Clinical Medical Physics, 2021 AbstractIn order to deliver accurate and safe treatment to cancer patients in radiation therapy using advanced techniques such as intensity modulated radiation therapy (IMRT) and volumetric‐arc radiation therapy (VMAT), patient specific quality assurance (QA) should be performed before treatment.
Alexander F I Osman
exaly +3 more sources
Physics and Imaging in Radiation Oncology, 2023 Background and purpose: Prediction models may be reliable decision-support tools to reduce the workload associated with the measurement-based patient-specific quality assurance (PSQA) of radiotherapy plans.
Samuele Cavinato +9 more
doaj +3 more sources
Therapeutic dose prediction using score-based diffusion model for pretreatment patient-specific quality assurance [PDF]
Frontiers in OncologyObjectivesImplementing pre-treatment patient-specific quality assurance (prePSQA) for cancer patients is a necessary but time-consuming task, imposing a significant workload on medical physicists.
Xiuwen Yu +6 more
doaj +2 more sources
Patient-specific quality assurance of dynamically-collimated proton therapy treatment plans. [PDF]
Med PhysAbstractBackgroundThe dynamic collimation system (DCS) provides energy layer‐specific collimation for pencil beam scanning (PBS) proton therapy using two pairs of orthogonal nickel trimmer blades. While excellent measurement‐to‐calculation agreement has been demonstrated for simple cube‐shaped DCS‐trimmed dose distributions, no comparison of ...
Bennett LC +16 more
europepmc +3 more sources
Frontiers in Oncology, 2021 This study aims to confirm the usefulness of patient-specific quality assurance (PSQA) using three-dimensional (3D)-printed phantoms in ensuring the stability of IORT and the precision of the treatment administered.
Yeonho Choi +6 more
doaj +3 more sources
Evaluation of Using an Octavius 4D Measuring System for Patient-Specific VMAT Quality Assurance
RadiationBackground: Quality assurance (QA) programs are designed to improve the quality and safety of radiation treatments, including patient-specific QA (PSQA).
Yawo Atsu Constantino Fiagan +5 more
doaj +3 more sources
Automated Patient-specific Quality Assurance for Automated Segmentation of Organs at Risk in Nasopharyngeal Carcinoma Radiotherapy [PDF]
Cancer ControlIntroduction Precision radiotherapy relies on accurate segmentation of tumor targets and organs at risk (OARs). Clinicians manually review automatically delineated structures on a case-by-case basis, a time-consuming process dependent on reviewer ...
Yixuan Wang MD +4 more
doaj +2 more sources