Results 21 to 30 of about 8,606 (195)

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

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

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

Catching errors with in vivo EPID dosimetry.

, 2010
The potential for detrimental incidents and the ever increasing complexity of patient treatments emphasize the need for accurate dosimetric verification in radiotherapy.
Tielenburg, R, Mijnheer, B, Wendling, M, Stroom, J C, Sonke, J J, van Herk, M, Mans, A, Van Herk, Marcel; id_orcid, Vijlbrief, R, McDermott, L N   +9 more
core   +9 more sources

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, Greco, Francesca, Mameli, Alessandra, Azario, Luigi, Balducci, Mario, Gambacorta, Maria Antonietta, Frascino, Vincenzo, Cilla, Savino, Sabatino, Domenico, Piermattei, Angelo   +9 more
  +7 more sources

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

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

Importance of beam-matching between truebeam stx and novalis tx in pre-treatment quality assurance using portal dosimetry

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, Daniel Venencia   +1 more
doaj   +1 more source

Contrast enhancement of EPID images via difference imaging : a feasibility study [PDF]

, 2010
In this study, the feasibility of difference imaging for improving the contrast of electronic portal imaging device (EPID) images is investigated. The difference imaging technique consists of the acquisition of two EPID images (with and without the ...
Khoei, Shadi, Fielding, Andrew L., T Kairn, J V Trapp, Markwell, Tim, S Khoei, Trapp, Jamie, A L Fielding, T S Markwell, Kairn, Tanya   +9 more
core   +1 more source

Exacerbations and healthcare resource utilization among COPD patients in a Swedish registry-based nation-wide study

BMC Pulmonary Medicine, 2018
Background Exacerbations of chronic obstructive pulmonary disease (COPD) are an important measure of disease severity in terms of impaired disease progression, increased recovery time, healthcare resource utilization, overall morbidity and mortality.
Gunnar Johansson, Vasili Mushnikov, Tobias Bäckström, Andreas Engström, Javaria Mona Khalid, Jennifer Wall, Fabian Hoti   +6 more
doaj   +1 more source