Results 101 to 110 of about 114,769,226 (147)

In vivo dosimetry in total body irradiation

Nucleus, 2019
Total Body Irradiation (TBI) is a radiotherapy technique that consists of irradiating homogeneously the whole patient’s body and it is characterized by an extended source to surface distances and the use of large irradiation fields.
E Llanes Veiga, R Alfonso Laguardia, R Caballero Pinelo   +2 more
doaj  

Epigenetic Dysregulation of Somatostatin Receptors (SSTR) 1–5 and Therapeutic Implications in Neuroendocrine and Non‐Neuroendocrine Malignancies

International Journal of Cancer, Volume 159, Issue 11, Page 2633-2652, 1 December 2026.
ABSTRACT Somatostatin receptors (SSTR) mediate the antiproliferative, antisecretory, and proapoptotic effects of somatostatin and its synthetic analogs. Their surface expression on neuroendocrine tumor (NET) cells is required for somatostatin analog therapy and radiopharmaceutical therapy (RPT).
Neeraj Kumari, Pablo Hoffmann, Laura Reichl, Maximilian Schmutz, Nina Fischer, Thi Tuong Vi Dang, Fulvia Ferrazzi, Pascal Johann, Michaela Kuhlen, Constantin Lapa, Rainer Claus   +10 more
wiley   +1 more source

Internal dosimetry of non-uniform activity distributions: a simple method for the calculation of the absorbed dose distribution at voxel level in radionuclide therapy [PDF]

, 2013
Internal dosimetry of non-uniform activity distributions: a simple method for the calculation of the absorbed dose distribution at voxel level in radionulcide therapy Radiotherapy is the medical use of ionizing radiations to control or kill clonogenic ...
AVIGO, CINZIA
core  

Global Efforts to Reduce Paediatric Cancer Care Disparities in Radiotherapy: A Decade Change

Pediatric Blood &Cancer, Volume 73, Issue 11, November 2026.
ABSTRACT Background We present an update on the status, needs and challenges faced by paediatric imaging and radiotherapy (RT) programmes globally after a previous survey conducted by the International Atomic Energy Agency (IAEA) 10 years prior. Methods We developed and distributed a 121‐question survey to radiation oncologists, medical physicists and ...
Raymond B. Mailhot Vega, Daniel J. Indelicato, Jeanette Parkes, Natia Esiashvili, Josué Hernández Benítez, Miriam Mikhail‐Lette, Olivera Cirajc Bjelac, Daniel Berger, Eva Ciurana, Yavuz Anacak, Lisbeth Cordero‐Mendez   +10 more
wiley   +1 more source

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

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   +1 more source

A Simple, Dynamic Geometric Phantom for MRI and CT Reconstruction Pipelines: Beyond Shepp–Logan

Magnetic Resonance in Medicine, Volume 96, Issue 5, Page 2451-2457, November 2026.
ABSTRACT A customizable, dynamic geometric phantom was developed to bridge the gap between simplistic static phantoms and highly realistic, complex 4D solutions. The phantom enables initial testing, helps detect implementation errors, and supports quantitative evaluation of new dynamic acquisition and reconstruction methods.
Tamás Hakkel, Noémi Kovács, József Sinkó, Domokos Máthé, Krisztián Szigeti   +4 more
wiley   +1 more source

END-TO-END AUDIT: COMPARISON OF TLD AND LITHIUM FORMATE EPR DOSIMETRY

, 2019
The aim of this study was to test two different solid state dosimetry systems for the purpose of end-to-end audits of radiotherapy volumetric modulated arc therapy (VMAT) technique; a lithium formate electron paramagnetic resonance system and a lithium ...
Lund, Eva,, Wesolowska, Paulina, Adolfsson, Emelie, Lund, Eva, Adolfsson, Emelie,, Carlsson Tedgren, Åsa, Wesolowska, Paulina,, Carlsson Tedgren, Åsa,, Izewska, Joanna, Izewska, Joanna,   +9 more
core   +1 more source

Feasibility of multi‐energy CT and fat fraction MRI for characterizing active bone marrow response to pelvic external beam radiation therapy

Journal of Applied Clinical Medical Physics, Volume 27, Issue 10, October 2026.
Abstract Background Pelvic external beam radiation therapy (EBRT), frequently exposes a substantial fraction of active bone marrow (ABM), leading to radiation‐induced marrow suppression and associated hematologic toxicity. Accurate delineation and quantitative assessment of ABM are therefore essential to enable marrow‐sparing radiotherapy strategies ...
Carolyn Eckrich, Kristin Bradley, Bethany Anderson, Diego Hernando, Jessica Miller, Jainil Shah, Patrick Wohlfahrt, Michael Lawless   +7 more
wiley   +1 more source

Clinical implementation and rapid commissioning of an EPID based in-vivo dosimetry system.

, 2014
Using an Electronic Portal Imaging Device (EPID) to perform in-vivo dosimetry is one of the most effective and efficient methods of verifying the safe delivery of complex radiotherapy treatments.
Hanson, Ian M., Hansen, Vibeke N, Olaciregui-Ruiz, Igor, van Herk, Marcel, Hansen, Vibeke N., Hanson, Ian M, Van Herk, Marcel; id_orcid   +6 more
core   +1 more source

Characterization of animal tissues for Monte Carlo simulations in ion beam therapy

Journal of Applied Clinical Medical Physics, Volume 27, Issue 10, October 2026.
Abstract Purpose To obtain better elemental compositions (ECs), physical densities (PDs), and relative linear stopping powers (RLSPs) of tissues scanned by single or dual energy computed tomography for use by Monte Carlo (MC) simulations of light ion beam therapy.
Liu Xiaoli, Michael F. Moyers
wiley   +1 more source