Results 81 to 90 of about 19,915,122 (208)

Fast and precise dose estimation for very high energy electron radiotherapy with graph neural networks

Frontiers in Physics
IntroductionExternal beam radiotherapy (RT) is one of the most common treatments against cancer, with photon-based RT and particle therapy being commonly employed modalities.
Lorenzo Arsini, Lorenzo Arsini, Barbara Caccia, Andrea Ciardiello, Andrea Ciardiello, Angelica De Gregorio, Angelica De Gregorio, Gaia Franciosini, Gaia Franciosini, Stefano Giagu, Stefano Giagu, Susanna Guatelli, Susanna Guatelli, Annalisa Muscato, Annalisa Muscato, Francesca Nicolanti, Francesca Nicolanti, Jason Paino, Jason Paino, Angelo Schiavi, Carlo Mancini-Terracciano, Carlo Mancini-Terracciano   +21 more
doaj   +1 more source

Activation of hip prostheses in high energy radiotherapy and resultant dose to nearby tissue [PDF]

, 2017
High energy radiotherapy can produce contaminant neutrons through the photonuclear effect. Patients receiving external beam radiation therapy to the pelvis may have high-density hip prostheses.
Millar, J, Franich, RD, Lonski, P, Max Esser, Tomas Kron, Peta Lonski, Jeremy Millar, Taylor, ML, Keehan, S, Smith, RL, Stephanie Keehan, Kron, T, Michael L. Taylor, Esser, M, Ryan L. Smith, Rick D. Franich   +15 more
core   +1 more source

Contribution of Activation Products to Occupational Exposure Following Treatment Using High-Energy Photons in Radiotherapy

, 2010
When high-energy photon beams are used for irradiation in radiotherapy, neutrons that are the result of photonuclear reactions create activation products that affect the occupational dose of radiotherapy staff.
Lazarević, Đorđe R., Krestic-Vesovic, Jelena, Petrović, Nina, Stojanovic, Darko, Ciraj-Bjelac, Olivera, Kovačević, Milojko, D. Stojanovic, O. Ciraj-Bjelac, D. Lazarevic, N. Petrovic, J. Krestic-Vesovic, M. Kovacevic   +11 more
core   +1 more source

A compact, lightweight, variable-energy cyclotron for conventional and FLASH ion beam radiotherapy

Frontiers in Oncology
IntroductionThe advantage of ion beam radiotherapy for cancer lies in its low dose proximal and distal to the tumor, owed to an energy-dependent depth-dose profile, the Bragg-peak. However, conventional techniques to achieve different energies often rely
D. Winklehner, J. V. Minervini, L. Bromberg, E. Forton, J. Mandrillon, P. C. Michael, A. Radovinsky   +6 more
doaj   +1 more source

Roentgen Stand for Field Positioning in High-Energy Radiotherapy [PDF]

Acta Radiologica: Therapy, Physics, Biology, 1968
B, Jung, B, Larsson, B, Rosengren, K, Ståhl, W, Wretlind   +4 more
openaire   +2 more sources

Direct Beam Control in Radiotherapy with High Energy Photons [PDF]

Acta Radiologica: Therapy, Physics, Biology, 1971
L, Jevbratt, C, Lagergren, B, Sarby
openaire   +2 more sources

Clinical application of high‐LET radiotherapy combined with immunotherapy in malignant tumors

Precision Radiation Oncology
The superior physical and biological properties of high linear energy transfer (LET), as opposed to traditional low‐LET rays, underscore the advantage of proton therapy (PRT) and carbon ion radiotherapy (CIRT) are better than traditional photon ...
Kexin Meng, Haijun Lu
doaj   +1 more source

CERN-based experiments and Monte-Carlo studies on focused dose delivery with very high energy electron (VHEE) beams for radiotherapy applications

Scientific Reports
Very High Energy Electron (VHEE) beams are a promising alternative to conventional radiotherapy due to their highly penetrating nature and their applicability as a modality for FLASH (ultra-high dose-rate) radiotherapy. The dose distributions due to VHEE
L. Whitmore, R. I. Mackay, M. van Herk, P. Korysko, W. Farabolini, A. Malyzhenkov, R. Corsini, R. M. Jones   +7 more
doaj   +1 more source

Quantification of geometric uncertainties in image guided radiotherapy [PDF]

, 2010
The aim of this thesis is to determine if the geometric uncertainties that are introduced into the image guided radiotherapy (IGRT) process by Cone Beam CT (CBCT) based IGRT equipment are sufficiently small that they do not pose a significant risk of ...
Sykes, Jonathan
core  

Application of PET molecular imaging in gliomas

肿瘤影像学, 2016
Non-invasive positron emission tomography (PET) enables the measurement of metabolic and molecular processes with high sensitivity. PET plays a significant role in the diagnosis, prognosis, and treatment of gliomas and predominantly detects gliomas by ...
KONG Yanyan
doaj