Results 81 to 90 of about 4,830 (200)

A Multi‐Institutional Retrospective Study of 21 Dogs Having Undergone Hypofractionated Radiotherapy for Adrenal Tumours (2017–2024)

Veterinary and Comparative Oncology, Volume 24, Issue 2, Page 229-239, June 2026.
ABSTRACT Radiation therapy (RT) has emerged as a promising non‐surgical approach for treating canine adrenal tumours. This multi‐institutional, retrospective study describes clinical outcomes for 21 dogs having been prescribed a course of hypofractionated image‐guided intensity‐modulated RT (IMRT) entailing delivery of 25–35 Gy total in 5 fractions ...
Yen‐Hao Erik Lai, Michael S. Kent, Michael W. Nolan, Dah‐Renn Fu, Jayme S. Looper   +4 more
wiley   +1 more source

In vivo Portal Imaging Dosimetry Identifies Delivery Errors in Rectal Cancer Radiotherapy on the Belly Board Device [PDF]

, 2017
PurposeWe recently developed a novel, open-source in vivo dosimetry that uses the electronic portal imaging device to detect dose delivery discrepancies.
Derek Wilson Brown, Richie Siddhartha Sinha, Peca, Stefano, Wendy Lani Smith, Stefano Peca, Sinha, Richie Siddhartha, Smith, Wendy Lani, Brown, Derek Wilson   +7 more
core   +1 more source

A Comparison of Planned Dose in TBI VMAT Treatment with Dosimetry Using Portal Dosimetry® and IBA MatriXX®

Brazilian Journal of Radiation Sciences
Bone Marrow Transplant (BMT) is an essential therapeutic intervention in the treatment of diseases such as leukemia and lymphoma, where Total Body Irradiation (TBI) plays a crucial role by eradicating residual diseases and inducing immunosuppression ...
Juan Sousa, I Lima, D Olbi, Lucas Nascimento, Andre Fidelis, Maria Luiza Maciel, Luiz da Rosa, Simone Coutinho Cardoso   +7 more
doaj   +1 more source

A remote EPID-based dosimetric TPS-planned audit of centers for clinical trials: outcomes and analysis of contributing factors

Radiation Oncology, 2018
Background A novel remote method for external dosimetric TPS-planned auditing of intensity modulated radiotherapy (IMRT) and volumetric modulated arc therapy (VMAT) for clinical trials using electronic portal imaging device (EPID) has been developed. The
Narges Miri, Kimberley Legge, Kim Colyvas, Joerg Lehmann, Philip Vial, Alisha Moore, Monica Harris, Peter B. Greer   +7 more
doaj   +1 more source

LEO‐DOS Absorbed Dose Observations During the May 2024 Geomagnetic Superstorm

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Low‐Earth Orbit Space Radiation Dosimeter (LEO‐DOS) onboard Next‐Generation Satellite II (NEXTSat‐2) measured absorbed dose rate variations during the May 2024 geomagnetic superstorm. The observations show deep storm‐time penetration of solar energetic particle (SEP) spanning L ≈ 2–10, a pronounced enhancement near L ≈ 3 consistent with ...
Jongil Jung, Young‐Sil Kwak, Uk‐Won Nam, Suyeon Oh, Won‐Kee Park, Sukwon Youn, Jaeyoung Kwak, Jongdae Sohn, Bongkon Moon, Jaejin Lee, Sunghwan Kim, Sung‐Joon Ye   +11 more
wiley   +1 more source

Implementation and validation of a commercial portal dosimetry software for intensity-modulated radiation therapy pre-treatment verification

Journal of Medical Physics, 2010
Electronic portal imaging devices (EPIDs) are extensively used for obtaining dosimetric information of pre-treatment field verification and in-vivo dosimetry for intensity-modulated radiotherapy (IMRT). In the present study, we have implemented the newly
Varatharaj C, Moretti Eugenia, Ravikumar M, Malisan Maria, Supe Sanjay, Padovani Renato   +5 more
doaj  

Three‐dimensional Cherenkov emission surface mapping into the patient coordinate system for spatial delivery verification in EBRT

Journal of Applied Clinical Medical Physics, Volume 27, Issue 5, May 2026.
Abstract Background Cherenkov imaging provides the ability to visualize beam delivery during radiation therapy treatments in real‐time informing the therapy team about possible deviations from the treatment plan. Current clinical practice with Cherenkov imaging relies on the real‐time view and post‐treatment qualitative assessment of Cherenkov images ...
Alexander Geiersbach, Michael Jermyn, David Gladstone, Lesley Jarvis, Brian Pogue, Petr Bruza   +5 more
wiley   +1 more source

Feasibility Study of Transit Dosimetry (TD) with an Electronic Portal Imaging Device (EPID) in volumetric arc therapy (VMAT) for head and neck cancer (HNC) [PDF]

Iranian Journal of Medical Physics
Introduction: The progress in radiotherapy treatment modalities, such as Intensity Modulated Radiotherapy (IMRT) and Volumetric Arc Therapy (VMAT), introduces considerable complexity.
ARVIND DIUNDI, KIRAN SHARMA, CHANDI BHATT, SANGEETA HAZARIKA   +3 more
doaj   +1 more source

COMP Report: Patient‐specific quality assurance practices in Canadian radiotherapy—results from a national survey

Journal of Applied Clinical Medical Physics, Volume 27, Issue 5, May 2026.
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.
Muoi N. Tran, Renée‐Xavière Larouche, Brennen Dobberthien, Nicolas Varfalvy, Gerard Lagmago Kamta, Philip Wright, Richard Lee, Gordon H. Chan   +7 more
wiley   +1 more source

Patient-specific quality assurance of RapidArc treatments: portal prediction dosimetry compared with phantom studies [PDF]

, 2012
Purpose: To validate a locally fabricated phantom of Imatrixx-2D Array by comparing its results with ArcCheck phantom and comparing portal dosimetry measurements with the two phantom studies.
Tuan Norhafizah binti Tuan Zakaria
core