Results 11 to 20 of about 21,477 (200)

COMP Report: Patient-specific quality assurance practices in Canadian radiotherapy-results from a national survey. [PDF]

J Appl Clin Med Phys
Abstract Patient‐specific quality assurance (PSQA) is an essential component of modern radiotherapy, ensuring safe and accurate delivery of increasingly complex treatments. Given its resource‐intensive nature and the availability of evolving approaches, examining how PSQA is implemented and optimized across Canada is important to inform best practices.
Tran MN, Larouche RX, Dobberthien B, Varfalvy N, Kamta GL, Wright P, Lee R, Chan GH.   +7 more
europepmc   +2 more sources

Sensitivity and concordance study of an open source EPID-based linear accelerator test suite. [PDF]

J Appl Clin Med Phys
Abstract Background Electronic portal imaging devices (EPIDs) enhance linear accelerator (linac) quality assurance (QA) efficiency but are not universally used beyond patient‐specific IMRT QA. A multi‐institutional Consortium seeks to standardize linac QA utilizing an EPID‐based test suite.
Critchfield LC, Knill CS, Durussel E, Mikell JK, Barnes M, Pillainayagam M, Donahue WP, Lim SB, DeMarco JJ, Perez M, Gupta N, Al-Hallaq H, Popple RA, Irrer J, Moran JM.   +14 more
europepmc   +2 more sources

Development of Artificial Intelligence as a Conversion Tool for Cine Electronic Portal Imaging Device Images to Radiotherapy Dosimetry: Preliminary Study [PDF]

Iranian Journal of Medical Physics, 2022
Introduction: This research is a preliminary study of the development of Artificial Intelligence (AI) as a conversion tool from the pixel value of Cine a-Si 1000 Electronic Portal Imaging Device (EPID) images to dose.
Muhammad Ramadhan, Wahyu Wibowo, Supriyanto Pawiro   +2 more
doaj   +1 more source

Quantitative evaluation of the effect of anatomical changes on the results of in vivo dosimetry during radiation therapy in the thoracic region. [PDF]

J Appl Clin Med Phys
Abstract Background Anatomical changes during thoracic radiation therapy can alter dose delivery and compromise accuracy. Electronic portal imaging device (EPID)‐based in vivo dosimetry (IVD) enables noninvasive monitoring of these changes during treatment. Purpose This study quantitatively evaluated the impact of EPID‐based IVD in volumetric modulated
Tanaka K, Komori M.
europepmc   +2 more sources

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, Ziting Fan, Xile Zhang, Ruijie Yang, Junhai Wen   +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

Manejo de las enfermedades pulmonares intersticiales difusas (EPID) asociadas a enfermedades autoinmunes, por el neumólogo en las diferentes unidades de EPID en España

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, Myriam Aburto Barrenetxea, Ana Belén Llanos González, María Jesús Rodríguez Nieto, María Molina Molina, Claudia Valenzuela   +5 more
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, M H Bahreyni, M Mohammadi, S Nasseri, S Bayani, H Gholamhosseinian, R Salek, F Shahedi, M Momennezhad   +8 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, Naer Baker, Khaled El-Shahat, Mohamed Akl, Ahmed Shawata   +4 more
doaj   +1 more source

Evaluation of IGRT-Induced Imaging Doses and Secondary Cancer Risk for SBRT Early Lung Cancer Patients In Silico Study

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, Heng-Le Gu MS, Xiao-Hui Yang BS, Hua Chen ME, Hao Wang MS, Yan Shao MS, Xiao-Yang Li MD, Ai-Hui Feng MS, Yan-Chen Ying MS, Xiao-Long Fu PhD, Kui Ma, Tao Zhou, Zhi-Yong Xu PhD   +12 more
doaj   +1 more source