Results 1 to 10 of about 170,362 (288)

Machine Learning Based Prediction of Gamma Passing Rate for VMAT Radiotherapy Plans. [PDF]

open access: yesJ Pers Med, 2022
The use of machine learning algorithms (ML) in radiotherapy is becoming increasingly popular. More and more groups are trying to apply ML in predicting the so-called gamma passing rate (GPR). Our team has developed a customized approach of using ML algorithms to predict global GPR for electronic portal imaging device (EPID) verification for dose ...
Sadowski B, Milewska K, Ginter J.
europepmc   +3 more sources

Correlation Between Average Segment Width and Gamma Passing Rate as a Function of MLC Position Error in Volumetric Modulated Arc Therapy [PDF]

open access: yesTechnology in Cancer Research & Treatment, 2021
Objective: This study analyzed the correlation between the average segment width (ASW) and gamma passing rate according to the multi-leaf collimator (MLC) position error.
Young Min Moon PhD   +6 more
doaj   +2 more sources

Using machine learning to predict gamma passing rate in volumetric-modulated arc therapy treatment plans. [PDF]

open access: yesJ Appl Clin Med Phys, 2023
AbstractPurposeThis study aims to develop an algorithm to predict gamma passing rate (GPR) in the volumetric‐modulated arc therapy (VMAT) technique.Materials and methodsA total of 118 clinical VMAT plans, including 28 mediastina, 25 head and neck, 40 brains intensity‐modulated radiosurgery, and 25 prostate cases, were created in RayStation treatment ...
Salari E   +3 more
europepmc   +3 more sources

Patient-Specific Pre-Treatment VMAT Plan Verification Using Gamma Passing Rates

open access: yesAtom Indonesia, 2023
Continuous gantry motion, continuous beam modulation, and variable dose rate are used in volumetric modulated arc therapy (VMAT) to obtain highly conformal radiation therapy dose distributions.
M. Z. Arsalan   +3 more
doaj   +2 more sources

Comparison of Gamma Index Passing Rate in Several Treatment Planning System Algorithms

open access: yesAtom Indonesia, 2020
The verification of dose calculation algorithm in a new Treatment Planning System (TPS) can be evaluated by comparing the passing rate of the gamma index analysis of the evaluated algorithm and the clinically implemented algorithms.
S. Liura, S.A. Pawiro
doaj   +3 more sources

Study of the prediction of gamma passing rate in dosimetric verification of intensity-modulated radiotherapy using machine learning models based on plan complexity [PDF]

open access: yesFrontiers in Oncology, 2023
ObjectiveTo predict the gamma passing rate (GPR) in dosimetric verification of intensity-modulated radiotherapy (IMRT) using three machine learning models based on plan complexity and find the best prediction model by comparing and evaluating the ...
Shizhen Bin   +4 more
doaj   +2 more sources

Comparison of 3D and 2D gamma passing rate criteria for detection sensitivity to IMRT delivery errors. [PDF]

open access: yesJ Appl Clin Med Phys, 2018
AbstractThis study compared three‐dimensional (3D) and two‐dimensional (2D) percentage gamma passing rates (%GPs) for detection sensitivity to IMRT delivery errors and investigated the correlation between two kinds of %GP. Eleven prostate IMRT cases were selected, and errors in multileaf collimator (MLC) bank sag, MLC leaf traveling, and machine output
Zhang D, Wang B, Zhang G, Ma C, Deng X.
europepmc   +4 more sources

Virtual Patient-Specific Quality Assurance of IMRT Using UNet++: Classification, Gamma Passing Rates Prediction, and Dose Difference Prediction [PDF]

open access: yesFrontiers in Oncology, 2021
The dose verification in radiotherapy quality assurance (QA) is time-consuming and places a heavy workload on medical physicists. To provide a clinical tool to perform patient specific QA accurately, the UNet++ is investigated to classify failed or pass ...
Ying Huang   +14 more
doaj   +3 more sources

Impact of stringent tolerance criteria on verification of absorbed dose distributions and evaluation through inhomogeneous media [PDF]

open access: yesNuclear Technology and Radiation Protection, 2022
Advances of radiation delivery devices have increased the complexity of the radiation oncology treatments. Herewith, outcome of the treatment, as well as patient safety, strongly depend on the consistency of absorbed dose delivery.
Obajdin Nevena   +4 more
doaj   +1 more source

Comparison of Patient-Specific Quality Assurance of 6 MV and 10 MV VMAT plan at Isocenter using Improved Gamma Evaluation Algorithm [PDF]

open access: yesIranian Journal of Medical Physics, 2022
Introduction: To compare Patient-Specific Quality Assurance (PSQA) of 6 MV and 10 MV Volume Modulated Arc Therapy (VMAT) plans performed with Electronic Portal Imaging Device (EPID) kept at Isocenter 100 cm (Source to Imager Distance (SID)) using an ...
JITENDRA NIGAM, Piyush Kumar, P SINGH
doaj   +1 more source

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