Results 1 to 10 of about 665,909 (147)

Out-of-field dose in stereotactic radiotherapy for paediatric patients [PDF]

Physics and Imaging in Radiation Oncology, 2021
Stereotactic radiotherapy combines image guidance and high precision delivery with small fields to deliver high doses per fraction in short treatment courses. In preparation for extension of these treatment techniques to paediatric patients we characterised and compared doses out-of-field in a paediatric anthropomorphic phantom for small flattened and ...
Garrett, L, Hardcastle, N, Yeo, A, Lonski, P, Franich, R, Kron, T   +5 more
openaire   +5 more sources

Measuring out-of-field dose to the hippocampus in common radiotherapy indications

Radiation Oncology, 2023
AbstractBackgroundThe high susceptibility of the hippocampus region to radiation injury is likely the causal factor of neurocognitive dysfunctions after exposure to ionizing radiation. Repetitive exposures with even low doses have been shown to impact adult neurogenesis and induce neuroinflammation.
Auerbach, Hendrik, Dzierma, Yvonne, Schürmann, Michaela, Rübe, Christian, Rübe, Claudia E.   +4 more
openaire   +3 more sources

Validation of a Monte Carlo Framework for Out-of-Field Dose Calculations in Proton Therapy [PDF]

Frontiers in Oncology, 2022
Proton therapy enables to deliver highly conformed dose distributions owing to the characteristic Bragg peak and the finite range of protons. However, during proton therapy, secondary neutrons are created, which can travel long distances and deposit dose in out-of-field volumes.
Marijke De Saint-Hubert, Nico Verbeek, Nico Verbeek, Nico Verbeek, Christian Bäumer, Christian Bäumer, Christian Bäumer, Christian Bäumer, Johannes Esser, Johannes Esser, Johannes Esser, Jörg Wulff, Jörg Wulff, Racell Nabha, Olivier Van Hoey, Jérémie Dabin, Florian Stuckmann, Florian Stuckmann, Florian Stuckmann, Fabiano Vasi, Stephan Radonic, Guillaume Boissonnat, Uwe Schneider, Miguel Rodriguez, Miguel Rodriguez, Beate Timmermann, Beate Timmermann, Beate Timmermann, Beate Timmermann, Beate Timmermann, Isabelle Thierry-Chef, Isabelle Thierry-Chef, Isabelle Thierry-Chef, Lorenzo Brualla, Lorenzo Brualla, Lorenzo Brualla   +35 more
openaire   +10 more sources

Analytical models for external photon beam radiotherapy out-of-field dose calculation: a scoping review

Frontiers in Oncology, 2023
A growing body of scientific evidence indicates that exposure to low dose ionizing radiation (< 2 Gy) is associated with a higher risk of developing radio-induced cancer.
Nathan Benzazon, Eric Deutsch, Charlotte Robert   +2 more
exaly   +3 more sources

The out-of-field dose in radiation therapy induces delayed tumorigenesis by senescence evasion

eLife, 2022
A rare but severe complication of curative-intent radiation therapy is the induction of second primary cancers. These cancers preferentially develop not inside the planning target volume (PTV) but around, over several centimeters, after a latency period of 1–40 years.
Goy, Erwan, Tomezak, Maxime, Facchin, Caterina, Martin, Nathalie, Bouchaert, Emmanuel, Benoit, Jerome, de Schutter, Clementine, Nassour, Joe, Saas, Laure, Drullion, Claire, Brodin, Priscille, Vandeputte, Alexandre, Molendi-Coste, Olivier, Pineau, Laurent, Goormachtigh, Gautier, Pluquet, Olivier, Pourtier, Albin, Cleri, Fabrizio, Lartigau, Eric, Penel, Nicolas, Abbadie, Corinne   +20 more
openaire   +5 more sources

Nontarget and Out-of-Field Doses from Electron Beam Radiotherapy

Life, 2022
In clinical radiotherapy, the most important aspects are the dose distribution in the target volume and healthy organs, including out-of-field doses in the body. Compared to photon beam radiation, dose distribution in electron beam radiotherapy has received much less attention, mainly due to the limited range of electrons in tissues. However, given the
Natalia Matuszak, Marta Kruszyna-Mochalska, Agnieszka Skrobala, Adam Ryczkowski, Piotr Romanski, Igor Piotrowski, Katarzyna Kulcenty, Wiktoria Maria Suchorska, Julian Malicki   +8 more
openaire   +4 more sources

Dose Calculation Accuracy of Radiotherapy Treatment Planning Systems in Out-of-Field Regions.

Journal of biomedical physics & engineering, 2019
no ...
Farhood B., Ghorbani M.
openaire   +3 more sources

Out-of-Field Dose Measurement by TLD Dosimetry and Estimation of Radiation-Induced Secondary Cancer Risk of Thyroid and Breast from Head Radiotherapy [PDF]

Journal of Biomedical Physics and Engineering, 2023
Background: Radiation therapy, the most common form of cancer treatment, can result in late complications, such as secondary breast and thyroid cancers.Objective: This study aimed to evaluate the risk of secondary cancers using two radiobiological models
Shiva Rahbar Yazdi, Mohammad Hosein Zare, Mohammad Ali Broomand   +2 more
doaj   +1 more source

Secondary Neutron Dose in Carbon-ion Radiotherapy: Investigations in QST–NIRS [PDF]

Journal of Radiation Protection and Research, 2021
Background The National Institutes for Quantum and Radiological Science and Technology–National Institute of Radiological Sciences (QST–NIRS) has continuously investigated the undesired radiation exposure in ion beam radiotherapy mainly in carbon-ion ...
Shunsuke Yonai, Shinnosuke Matsumoto
doaj   +1 more source

Validation of Monte Carlo Model for Dose Evaluation outside the Treatment Field for Siemens 6MV Beam [PDF]

Iranian Journal of Medical Physics, 2020
Introduction: There has been a concern about the unintended doses to critical structures outside the treatment field due to the increased risk of radiation-induced second cancer following radiotherapy treatments.
Sinousy M., Attalla M., Ibrahim F., Elhussiny A., Elmekawy F.   +4 more
doaj   +1 more source