Results 31 to 40 of about 8,621 (193)
Development of an Electronic Portal Imaging Device Dosimetry Method
Diagnostics, 2021 Support arm backscatter and off-axis effects of an electronic portal imaging device (EPID) are challenging for radiotherapy quality assurance. Aiming at the issue, we proposed a simple yet effective method with correction matrices to rectify backscatter ...
Jun Zhang +4 more
doaj +1 more source
Clinical Experience of Intensity Modulated Radiotherapy Pre-Treatment Quality Assurance for Carcinoma Head and Neck Patients with EPID and IMatriXX in Rural Center [PDF]
Journal of Biomedical Physics and Engineering, 2020 Background: Radiation therapy techniques as Intensity Modulated Radiotherapy (IMRT), rapid arc have been used for treatment of cancer with high accuracy.
M More, V Jain, O P Gurjar
doaj +1 more source
An Empirical Transmitted EPID Dosimetry Method using a Back-Projection Algorithm [PDF]
Journal of Biomedical Physics and Engineering, 2019 Background: The present study aimed to introduce a rapid transmission dosimetry through an electronic portal-imaging device (EPID) to achieve two-dimensional (2D) dose distribution for homogenous environments. Material and Methods: In this Phantom study,
S M Hashemi +8 more
doaj +1 more source
Open Respiratory Archives, 2022 Resumen: Introducción: El objetivo del estudio fue conocer el manejo de los pacientes con enfermedad pulmonar intersticial difusa (EPID) asociada a enfermedades autoinmunes sistémicas (EAS) en las consultas de neumología especializadas en EPID en el ...
Orlando Acosta Fernández +5 more
doaj +1 more source
Verification of IMRT and RapidArc Localized Prostate Cancer Treatment Plans Using EPID and Delta4 in vivo Dosimetry Methods [PDF]
Middle East Journal of Cancer, 2021 Background: Quality assurance for intensity modulated radiation therapy (IMRT) depends on the type of dosimetry system and its evaluation procedure. We can check both the intensity and distribution of each field as the required pretreatment verification ...
Moustafa Ahmed +4 more
doaj +1 more source
Breast in vivo dosimetry by EPID
Journal of Applied Clinical Medical Physics, 2010 An electronic portal imaging device (EPID) is an effective detector for in vivo transit dosimetry. In fact, it supplies two‐dimensional information, does not require special efforts to be used during patient treatment, and can supply data in real time.
Fidanzio, Andrea +9 more
+7 more sources
Technology in Cancer Research & Treatment, 2021 Objectives: This study performed dosimetry studies and secondary cancer risk assessments on using electronic portal imaging device (EPID) and cone beam computed tomography (CBCT) as image guided tools for the early lung cancer patients treated with SBRT.
Yan-Hua Duan ME +12 more
doaj +1 more source
wzbillings/EPID-8130-Final-Paper: Final paper draft
, 2021 <p>This is the final draft of my paper for EPID 8130. Future updates will not edit the content of the paper unless absolutely necessary (or based on feedback after grading).</p> <p>In this work, I perform a systematic review of ...
Zane Billings
core +1 more source
A Validation Method for EPID In Vivo Dosimetry Algorithms [PDF]
Applied Sciences, 2021 The aim of this study was to develop and apply an evaluation method for assessing the accuracy of a novel 3D EPID back-projection algorithm for in vivo dosimetry. The novel algorithm of Dosimetry Check (DC) 5.8 was evaluated. A slab phantom homogeneously filled, or with air and bone inserts, was used for fluence reconstruction of different squared ...
Marco Esposito +5 more
openaire +3 more sources
Journal of Medical Physics, 2021 Flexibility and efficiency in a radiotherapy department with different linear accelerators (linacs) can be improved if they are dosimetrically equivalent, and there is no need of plan or patient-specific quality assurance (PSQA) modification.
José Alejandro Rojas-López +1 more
doaj +1 more source