Results 31 to 40 of about 25,193 (285)
Frontiers 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 +1 more source
Gamma-Index Passing Rates in Baseline Plans Measured with a Detector Array
International Journal of Medical Physics, Clinical Engineering and Radiation Oncology, 2015 Purpose: This study provides a simple protocol for validation of the gamma passing rates and to identify the optimum values of % dose and mm criteria for dose distributions measured with a detector array. Methods: We chose ArcCHECK detector array to illustrate the concepts.
Stanislaw Szpala, Kirpal Kohli
openaire +2 more sources
Prediction and interpretation of gamma pass rate based on SHAP value feature selection
, 2023 Abstract Background SHAP values are suggested as a unique measure of feature importance in machine learning prediction models. It can explain the output of any machine learning prediction model and can also participate in the construction of machine learning prediction models as a feature selection mechanism for handling high-dimensional data ...
Qianxi Ni +5 more
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Radiation Oncology, 2022 Background Based on a previous study on the feasibility of TomoEQA, an exit detector-based patient-specific pre-treatment quality assurance (QA) method for helical tomotherapy, an in-depth clinical evaluation was conducted.
Changhwan Kim +5 more
doaj +1 more source
Quantifying radiotherapy beam quality: an analysis using gamma passing rates
Biomedical Physics & Engineering ExpressAbstract Purpose. PDD and profile curves play a crucial role in analyzing the beam quality and energy stability of accelerators. The aim of this study was to assess the efficacy of GPR in machine QA and compare it with traditional methods for analyzing dose outputs. Methods.
Xiang Gao +7 more
openaire +3 more sources
, 2023 (a) DSC and (b) AHD between pCT and CBCT at n’th fraction of the treatment. 25%~75% indicate the data between the first quartile (Q1) and the third quartile (Q3).
Joo Ho Lee (2294140) +10 more
core +1 more source
A study on the correlation between radiation field size and gamma index passing rate for MatriXX
Medicine, 2019 Abstract This study aimed to analyze the influence of the radiation field size on the passing rate of the treatment planning system using MatriXX if the field irradiated the circuit. Two sets of static fields which were 10 cm and 30 cm in the left-right direction (X), and was 31 cm to 40 cm in gun-target direction ...
Xie, Kai +5 more
openaire +2 more sources
IBA myQA SRS Detector for CyberKnife Robotic Radiosurgery Quality Assurance
Applied Sciences, 2022 The IBA myQA® SRS high-resolution solid-state detector was evaluated in the context of robotic radiosurgery delivered using CyberKnife®. The performance was investigated for periodic machine delivery quality assurance (DQA) and patient-specific treatment
Francesco Padelli +3 more
doaj +1 more source
, 2023 Background: In this study we have compared 2D and 3D gamma pass percentage for a variety of acceptance criteria for 40 step-and-shoot IMRT (intensity-modulated radiotherapy) plans.
Bhamra, Hartanya Kaur +7 more
core +2 more sources
A practical method to optimize quality assurance results of arc therapy plans in beam modeling
Journal of Medical Physics, 2018 Dosimetric accuracy of a volumetric modulated arc therapy (VMAT) plan is directly related to the beam model, particularly with multileaf collimator characterization.
Jinyu Xue +4 more
doaj +1 more source