Results 11 to 20 of about 7,859 (235)

Radioactivity and Space Range of Ultra-Low-Activity for in vivo Off-line PET Verification of Proton and Carbon Ion Beam—A Phantom Study

open access: yesFrontiers in Public Health, 2021
Purpose: The radioactivity induced by proton and heavy ion beam belongs to the ultra-low-activity (ULA). Therefore, the radioactivity and space range of commercial off-line positron emission tomography (PET) acquisition based on ULA should be evaluated ...
Fuquan Zhang   +15 more
doaj   +1 more source

ROS- and Radiation Source-Dependent Modulation of Leukocyte Adhesion to Primary Microvascular Endothelial Cells

open access: yesCells, 2021
Anti-inflammatory effects of low-dose irradiation often follow a non-linear dose–effect relationship. These characteristics were also described for the modulation of leukocyte adhesion to endothelial cells.
Denise Eckert   +8 more
doaj   +1 more source

A Comparative Study of Two In Vivo PET Verification Methods in Clinical Cases

open access: yesFrontiers in Oncology, 2021
PurposePositron emission tomography (PET) range verification is an important method that can help improve the confidence in proton therapy for clinical applications.
Junyu Zhang   +24 more
doaj   +1 more source

The role transition of radiotherapy for the treatment of liver cancer in the COVID-19 era

open access: yesFrontiers in Oncology, 2022
The uncontrollable COVID-19 crises in the SARS-CoV-2 high-prevalence areas have greatly disrupted the routine treatment of liver cancer and triggered a role transformation of radiotherapy for liver cancer.
Zheng Li   +12 more
doaj   +1 more source

Flourish of Proton and Carbon Ion Radiotherapy in China

open access: yesFrontiers in Oncology, 2022
Proton and heavy ion therapy offer superior relative biological effectiveness (RBE) in the treatment of deep-seated tumors compared with conventional photon radiotherapy due to its Bragg-peak feature of energy deposition in organs. Many proton and carbon
Yue Li   +8 more
doaj   +1 more source

Carbon-ion Radiotherapy for Colorectal Cancer

open access: yesJournal of the Anus, Rectum and Colon, 2021
Heavy-ion radiotherapy (RT) is a kind of particle RT, and carbon-ion beam constitutes the primary delivery method of heavy-ion RT. Unlike the conventional photon modalities, particle RT, in particular carbon-ion radiotherapy (CIRT), offers unique ...
Shigeru Yamada   +6 more
doaj   +1 more source

Prompt gamma spectroscopy retrieval algorithm for element and density measurements accelerated by cloud computing

open access: yesFrontiers in Physics, 2022
Prompt gamma ray in proton therapy is the product of a nuclear reaction between a proton and a target. The characteristic energies and intensities of prompt gamma lines can be used to determine the types of elements and their amounts in the target.
Jin-Long Wang   +13 more
doaj   +1 more source

Review on heavy ion radiotherapy facilities and related ion sources (invited) [PDF]

open access: yesReview of Scientific Instruments, 2010
Heavy ion radiotherapy awakens worldwide interest recently. The clinical results obtained by the Heavy Ion Medical Accelerator in Chiba at the National Institute of Radiological Sciences in Japan have clearly demonstrated the advantages of carbon ion radiotherapy. Presently, there are four facilities for heavy ion radiotherapy in operation, and several
A, Kitagawa   +4 more
openaire   +3 more sources

Results of heavy ion radiotherapy [PDF]

open access: yesRadiation and Environmental Biophysics, 1995
The potential of heavy ion therapy for clinical use in cancer therapy stems from the biological parameters of heavy charged particles and their precise dose localization. Biologically, carbon, neon, and other heavy ion beams (up to about silicon) are clinically useful in overcoming the radioresistance of hypoxic tumors, thus increasing the biological ...
openaire   +3 more sources

Measuring Leukocyte Adhesion to (Primary) Endothelial Cells after Photon and Charged Particle Exposure with a Dedicated Laminar Flow Chamber

open access: yesFrontiers in Immunology, 2017
The vascular endothelium interacts with all types of blood cells and is a key modulator of local and systemic inflammatory processes, for example, in the adhesion of blood leukocytes to endothelial cells (EC) and the following extravasation into the ...
Nadine Erbeldinger   +14 more
doaj   +1 more source

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