Results 71 to 80 of about 8,057,312 (144)

In vivo dosimetry in external beam photon radiotherapy: Requirements and future directions for research, development, and clinical practice

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, Sam Beddar, Peter Greer, Nuria Jornet, Boyd McCurdy, Gabriel Paiva-Fonseca, Ben Mijnheer, Frank Verhaegen   +7 more
doaj   +1 more source

Precise delineation of radiation targets for thoracic tumors in the immunotherapy era: From immune mechanisms to clinical practice

Precision Radiation Oncology, Volume 10, Issue 3, Page 371-387, September 2026.
RT‐immunotherapy synergy for thoracic tumors relies on precise target delineation to protect immune components. IFI, reduced volumes, and optimized positioning minimize damage, while multimodal imaging, DL, PBT, and FLASH‐RT enhance control. These innovations shift RT to an immune‐centric model, improving lung and esophageal cancer outcomes.
Xiaoying Chen, Minxiao Yi, Yu Deng, Qian Shen   +3 more
wiley   +1 more source

Retrospective Analysis of Survival and Adverse Effects Associated With Stereotactic Body Radiation Therapy in 12 Dogs With Hepatocellular Carcinoma

Veterinary and Comparative Oncology, Volume 24, Issue 3, Page 485-498, September 2026.
ABSTRACT This retrospective analysis evaluated 12 dogs with hepatocellular carcinoma (HCC) who received stereotactic body radiation therapy (SBRT). Dogs received between 6 and 25 Grey (Gy) per fraction for 1–5 fractions for a total dose of 13–30 Gy. Eleven patients (92%) experienced acute adverse effects (AE), with the majority being VRTOG grade 2–3 ...
Victoria Lee Newberry, Mary‐Keara Boss, Del Leary, Tiffany W. Martin   +3 more
wiley   +1 more source

Excessive Hepatic Arterial-portal Venous Shunting May Predict Failure of Microparticle Localization in Hepatocellular Carcinomas

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, Yung Hsiang Kao, Wanying Xie   +2 more
doaj   +1 more source

Commissioning and clinical positioning assessment of a novel surface‐guided radiation therapy (SGRT) system at a C‐Arm linear accelerator

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Surface‐guided radiation therapy (SGRT) has been increasingly adopted in modern radiotherapy, enabling radiation‐dose‐free, marker‐free patient positioning with high accuracy. A novel SGRT system, LUNA 3D (LAP, Lüneburg, Germany), featuring a browser‐based interface, GPU‐accelerated surface reconstruction, high frame rates, large ...
Hui Khee Looe, Niklas Felix Hendrik Bartner, Björn Poppe, Kay C. Willborn   +3 more
wiley   +1 more source

Idac-alpha An alpha dosimetry software for normal organs and tissues

, 2021
Radiopharmaceuticals have been used for the treatment of various forms of cancer since the 1940s. In recent years, the advantages of alpha emitting radionuclides have emerged as a favourable treatment option.
Mattsson, S.,, Koumarianou, E.,, Kluge, A.,, Lund University., Andersson, M.,, Meyer, T.,   +5 more
core   +1 more source

Ce doped SiO₂ optical fibers for remote radiation sensing and measurement

, 2009
Scintillating materials, able to efficiently operate the conversion of energy absorbed in the form of ionizing radiation into light in the visible UV interval, are presently used in a wide class of applications as medical imaging, industrial inspection ...
Marco Brambilla, Marie Claire Cantone, Anna Vedda, Giampiero Tosi, Cannillo, Barbara, Cantone, Marie Cantone, Gilberto Brambilla, Eleonora Mones, M. Brambilla, G. Brambilla, Marco Petrovich, A. Vedda, B. Cannillo, Brambilla, Gilberto, Barbara Cannillo, Norberto Chiodini, Tosi, Gaimpiero, Vedda, Anna, I. Veronese, Fasoli, Mauro, Mauro Fasoli, Mones, Eleonora, E. Mones, M. Fasoli, A. Lauria, M. Petrovich, G. Tosi, Ivan Veronese, Lauria, Alessandro, Brambilla, Marco, Alessandro Lauria, M.C. Cantone, N. Chiodini, Petrovich, Marco, F. Moretti, Chiodini, Norberto, Moretti, Federico, Veronese, Ivan, Federico Moretti   +38 more
core   +1 more source

Calibration of a portal imaging device for high-precision dosimetry: a Monte Carlo study

, 1998
Today electronic portal imaging devices (EPID's) are used primarily to verify patient positioning. They have, however, also the potential as 2D-dosimeters and could be used as such for transit dosimetry or dose reconstruction.
Fix, M, Harald Keller, Rüegsegger, P, Michael Fix, Peter Rüegsegger, Keller, H   +5 more
core   +1 more source

The stability of liquid-filled matrix ionization chamber electronic portal imaging devices for dosimetry purposes.

, 2004
This study was performed to determine the stability of liquid-filled matrix ionization chamber (LiFi-type) electronic portal imaging devices (EPID) for dosimetric purposes.
Tielenburg, R, Louwe, R J W, van Ingen, K M, Mijnheer, B J, Van Herk, Marcel; id_orcid, van Herk, M B   +5 more
core   +4 more sources

Portal dosimetry correction method for validation of single isocenter VMAT plans for multiple brain metastases. [PDF]

J Appl Clin Med Phys, 2022
Lalonde RJ, Huq MS.
europepmc   +1 more source