Results 21 to 30 of about 8,621 (193)

API-enabled integration of Pylinac with QATrack+ for automated EPID-based QA on Elekta linear accelerators: a technical note [PDF]

Reports of Practical Oncology and Radiotherapy
BACKGROUND: EPID quality assurance (QA) workflows remain largely manual and are difficult to standardise across treatment machines. This limits efficiency, increases operator dependency, and complicates consistent reporting and data sharing between ...
Oussama El Mouden, Hamza Sekkat, Ahmed Bannan, Redouane El Baydaoui, Mustapha Bougteb, Mounir Mkimel, Abdellah Khallouqi, Maroine Tahiri, Omar El Rhazouani, Yasmina Berrada   +9 more
doaj   +2 more sources

In-vivo dosimetry using electronic portal imaging in online-adaptive radiotherapy for rectal cancer [PDF]

Physics and Imaging in Radiation Oncology
Background and purpose: Electronic portal imaging device (EPID)-based in-vivo dosimetry (IVD) is widely used to verify radiotherapy dose delivery and detect deviations from anatomical changes, setup uncertainties, or machine-related errors. However, cone-
Gary Razinskas, Robert Schindhelm, Anne Richter, Johannes Kraft, Marcus Zimmermann, Jörg Tamihardja, Andrea Wittig-Sauerwein, Sonja Wegener   +7 more
doaj   +2 more sources

Evaluation of Dose Distribution at the Level of Electronic Portal Imaging Device using Treatment Planning System [PDF]

Journal of Biomedical Physics and Engineering
Background: Treatment Planning Systems (TPS) are designed to calculate dose distributions within the CT imaging field of view. However, the Electronic Portal Imaging Device (EPID) is positioned outside this area, making it challenging to use standard TPS
Amene Bagheri, Mehdi Momennezhad, Shahrokh Nasseri, Azam Eskandari, Erfan Saatchian, Maryam Naji, Mohammad Yasin Mohammadi   +6 more
doaj   +2 more sources

EPID

Open Respiratory Archives
doaj   +6 more sources

Dose Characteristics of a Deep Learning Model for EPID-based In vivo Dosimetry [PDF]

Journal of Medical Physics
Background: Images from onboard electronic portal imaging devices (EPID) contain dose information that can be converted into dose maps. A cycle-consistent generative adversarial network (CycleGAN)-based model was developed for two-dimensional (2D) EPID ...
Qilin Li, Dingshu Tian, Guangyao Sun, Wendong Gu, Jieqiong Jiang   +4 more
doaj   +2 more sources

Setup Error Differences and Margin Expansion Among Rectal Cancer Segments: Consistency Evaluation Between EPID and iSCOUT [PDF]

Cancer Reports
Purpose To analyze the differences in setup errors among patients with rectal cancer in the upper, middle and lower segments and evaluate the consistency between electronic portal imaging device (EPID) and iSCOUT image‐guided techniques.
Bao Wan, Jiangtao Han, Qian Wu, Jingjing Lu, Xueshan Li, Yongtai Zheng, Chao Liu, Shuo Sun, Yu Zhao, Fukui Huan, Tantan Li   +10 more
doaj   +2 more sources

EPID

Open Respiratory Archives, 2023
doaj   +2 more sources

Preclinical feasibility of EPID-based transit dosimetry for total body irradiation. [PDF]

J Appl Clin Med Phys
Abstract Background Conventional extended‐distance total body irradiation (TBI) is commonly verified using point dosimeters, which provide limited spatial information and require additional handling during a prolonged treatment procedure. A portable charge‐coupled device (CCD)‐based electronic portal imaging device (EPID) positioned downstream of the ...
Nakaichi T, Okamoto H, Kon M, Takaso K, Aikawa A, Nakamura S, Iijima K, Chiba T, Nakayama H, Goka T, Igaki H.   +10 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

Reporting Clinical Results of EPID-Based Patient-Specific Quality Assurance for Brain Stereotactic Radiosurgery/Radiation Therapy: Demonstrating the Feasibility of Same-Day Stereotactic Radiosurgery via HyperArc Delivery [PDF]

Advances in Radiation Oncology
Purpose: Patient-specific quality assurance (PSQA) of complex volumetric modulated arc therapy plans via Electronic portal imaging device (EPID)-based portal dosimetry (PD) is widely adopted by the radiation therapy community.
Damodar Pokhrel, PhD, Josh Misa, MS, Shane McCarthy, BS, William St. Clair, MD, PhD   +3 more
doaj   +2 more sources