Results 91 to 100 of about 4,830 (200)
Physics and Imaging in Radiation OncologyThe aim of this work was to evaluate results of a remote electronic portal imaging based dosimetric auditing method using Task-Group 218 clinical gamma evaluation criteria (3%,2 mm, 10% dose threshold).
Peter B. Greer +2 more
doaj +1 more source
Physics and Imaging in Radiation Oncology, 2020 External beam radiotherapy with photon beams is a highly accurate treatment modality, but requires extensive quality assurance programs to confirm that radiation therapy will be or was administered appropriately.
Igor Olaciregui-Ruiz +7 more
doaj +1 more source
Dosimetry with a fluoroscopic electronic portal imaging device [PDF]
Medical Physics, 2000 Techniques for dosimetric verification of radiotherapy treatments using a CCD camera based fluoroscopic electronic portal imaging device (EPID) are described. The dosimetric characteristics of the EPID were investigated and a method was developed to derive portal dose images (PDIs) from measured EPID images.
openaire +1 more source
Alzheimer's &Dementia, Volume 22, Issue 5, May 2026.Abstract Noise exposure is increasingly recognized as a modifiable environmental risk factor for Alzheimer's disease and related dementias (ADRD), yet its integration into epidemiologic research remains limited. We reviewed international noise mapping resources, exposure metrics, and analytic approaches relevant to ADRD studies.
Matthew Bozigar +20 more
wiley +1 more source
Boost Approaches in Patients Undergoing Postoperative Radiotherapy
Journal of Surgical Oncology, Volume 133, Issue 6, Page 773-784, May 2026.ABSTRACT The use of breast conservation surgery for early‐stage breast cancer is common, and adjuvant radiotherapy is often recommended to reduce the risk of ipsilateral breast tumor recurrence. Historical trials have used sequential boost techniques with favorable outcomes with reduction in local recurrence and acceptable cosmetic outcomes.
Abigail Pepin +5 more
wiley +1 more source
World Journal of Nuclear Medicine, 2013 Locoregional treatment of hepatocellular carcinomas using yttrium-90 (Y-90) microspheres is an emerging modality, and involves the administration of such radioactive particles directly into the hepatic arterial vasculature.
Andrew Eik Hock Tan +2 more
doaj +1 more source
Identification of treatment error types for lung cancer patients using convolutional neural networks and EPID dosimetry [PDF]
, 2020 Background/Purpose: Electronic portal imaging device (EPID) dosimetry aims to detect treatment errors, potentially leading to treatment adaptation. Clinically used threshold classification methods for detecting errors lead to loss of information (from ...
Wolfs, Cecile J. A.; id_orcid +3 more
core +1 more source
Sensitivity and concordance study of an open source EPID‐based linear accelerator test suite
Journal of Applied Clinical Medical Physics, Volume 27, Issue 4, April 2026.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.
Lana C. Critchfield +14 more
wiley +1 more source
Monte Carlo simulation of portal dosimetry on a rectilinear voxel geometry: a variable gantry angle solution [PDF]
, 2003 A software solution has been developed to carry out Monte Carlo simulations of portal dosimetry using the BEAMnrc/DOSXYZnrc code at oblique gantry angles.
Lewis, D. G. +2 more
core +1 more source
Software tool for portal dosimetry research [PDF]
This paper describes a software tool developed for research into the use of an electronic portal imaging device (EPID) to verify dose for intensity modulated radiation therapy (IMRT) beams.
P. Hunt (6387443) +4 more
core