Results 71 to 80 of about 5,021,050 (358)

Proton therapy in clinical practice [PDF]

Chinese Journal of Cancer, 2011
Radiation dose escalation and acceleration improves local control but also increases toxicity. Proton radiation is an emerging therapy for localized cancers that is being sought with increasing frequency by patients. Compared with photon therapy, proton therapy spares more critical structures due to its unique physics.
Joe Y. Chang, Hui Liu
openaire   +3 more sources

Proton therapy for brain tumours in the area of evidence-based medicine.

British Journal of Radiology, 2020
ADVANCES IN KNOWLEDGE This review details the indication of brain tumors for proton therapy and give a list of the open prospective trials for these challenging tumors.
D. Weber, P. Lim, S. Tran, M. Walser, A. Bolsi, U. Kliebsch, J. Beer, B. Bachtiary, T. Lomax, A. Pica   +9 more
semanticscholar   +1 more source

Nuclear Emulsion Film Detectors for Proton Radiography: Design and Test of the First Prototype

, 2009
Proton therapy is nowadays becoming a wide spread clinical practice in cancer therapy and sophisticated treatment planning systems are routinely used to exploit at best the ballistic properties of charged particles.
Braccini, Saverio, Ereditato, Antonio, et al.,, Kreslo, Igor, Moser, Urs, Pistillo, Ciro, Scampoli, Paola, Studer, Simone   +7 more
core   +1 more source

Towards 3D printed multifunctional immobilization for proton therapy: initial materials characterization [PDF]

, 2016
Purpose: 3D printing technology is investigated for the purpose of patient immobilization during proton therapy. It potentially enables a merge of patient immobilization, bolus range shifting, and other functions into one single patient-speci c structure.
Ahn, American Society for Testing and Materials, Antoine D’Hollander, Attix, Barker, Barten, Bazalova, Crijns, Edmond Sterpin, Engelsman, Georg, Gottschalk, Guozhi Zhang, Hünemohr, Hünemohr, Jean-Marc Denis, Johns, Ju, Karin Haustermans, Kenneth Poels, Landry, Langendijk, Lindsay, Lomax, Lomax, Mathias Kersemans, Matsumoto, Mayer, Melchels, Nicolas Lammens, Palta, Ramaekers, Rutherford, Safai, Saito, Sandra Nuyts, Schneider, Seltzer, Sisterson, Steven Michiels, Titt, Tom Depuydt, Zhang, Zhao, Zou   +44 more
core   +2 more sources

First-in-human trial using mixed-reality visualization for patient setup during breast or chest wall radiotherapy

Radiation Oncology
Background The purpose of this study is to assess the feasibility of mixed-reality (MixR) visualization for patient setup in breast and chest wall radiotherapy (RT) by performing a first-in-human clinical trial comparing MixR with a 3-point alignment ...
Perry B. Johnson, Julie Bradley, Samsun Lampotang, Amanda Jackson, David Lizdas, William Johnson, Eric Brooks, Raymond B. Mailhot Vega, Nancy Mendenhall   +8 more
doaj   +1 more source

On The Relationship Between The Energy, Energy Spread And Distal Slope for Proton Therapy Observed in GEANT4 [PDF]

arXiv, 2020
In proton therapy both the energy, which determines the range, and the distal slope, which reflects the rate at which the protons decelerate, are of import if we are to ensure accurate dose deposition and maximum tissue sparing. This publication describes a Geant4 model and presents a two-dimensional polynomial relationship between energy, the energy ...
arxiv  

Radiation Therapy Medical Physics Review – Delivery, Interactions, Safety, Feasibility, and Head to Head Comparisons of the Leading Radiation Therapy Techniques [PDF]

, 2017
Radiation therapy uses high energy radiation to kill cancer cells. Radiation therapy for cancer treatment can take the form of photon therapy (using x-rays and gamma rays), or charged particle therapy including proton therapy and electron therapy. Within
Collins, Cielle
core   +1 more source

Bayesian Adaptive Randomization Trial of Passive Scattering Proton Therapy and Intensity-Modulated Photon Radiotherapy for Locally Advanced Non-Small-Cell Lung Cancer.

Journal of Clinical Oncology, 2018
Purpose This randomized trial compared outcomes of passive scattering proton therapy (PSPT) versus intensity-modulated (photon) radiotherapy (IMRT), both with concurrent chemotherapy, for inoperable non-small-cell lung cancer (NSCLC).
Z. Liao, J. J. Lee, R. Komaki, Daniel R. Gomez, Michael S. O’Reilly, F. Fossella, G. Blumenschein, J. Heymach, A. Vaporciyan, S. Swisher, P. Allen, Noah Chan Choi, Thomas F. DeLaney, Stephen M. Hahn, James D. Cox, Charles S. Lu, R. Mohan   +16 more
semanticscholar   +1 more source

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

FEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang, Frans Bianchi, Geert van den Bogaart   +2 more
wiley   +1 more source

Neutron Production in The Scattering S250 Mevion Proton-Therapy System [PDF]

arXiv, 2022
Secondary radiation in a radiation therapy environment is considered a cause for post-treatment side effects including secondary carcinogenesis. In a proton-therapy setup, neutrons deliver a considerable extra dose to the patient. Various measurements and calculations of neutron dose suggest a wide range of values for this quantity. This paper provides
arxiv