Results 21 to 30 of about 5,021,050 (358)

Assessment of a Therapeutic X-ray Radiation Dose Measurement System Based on a Flexible Copper Indium Gallium Selenide Solar Cell

Sensors, 2022
Several detectors have been developed to measure radiation doses during radiotherapy. However, most detectors are not flexible. Consequently, the airgaps between the patient surface and detector could reduce the measurement accuracy.
Dong-Seok Shin, Tae-Ho Kim, Jeong-Eun Rah, Dohyeon Kim, Hye Jeong Yang, Se Byeong Lee, Young Kyung Lim, Jonghwi Jeong, Haksoo Kim, Dongho Shin, Jaeman Son   +10 more
doaj   +1 more source

Sensitivity analysis of Monte Carlo model of a gantry-mounted passively scattered proton system [PDF]

, 2020
PURPOSE: This study aimed to present guidance on the correlation between treatment nozzle and proton source parameters, and dose distribution of a passive double scattering compact proton therapy unit, known as Mevion S250.
Baradaran-Ghahfarokhi, Milad, Prusator, Michael T, Reynoso, Francisco, Sun, Baozhou, Zhao, Tianyu   +4 more
core   +2 more sources

Proton Therapy Review: Proton Therapy from a Medical

Progress in Medical Physics, 2020
Se Byeong Lee
openaire   +4 more sources

Proton Therapy Reduces the Likelihood of High-Grade Radiation-Induced Lymphopenia in Glioblastoma Patients: Phase II Randomized Study of Protons vs. Photons.

Neuro-Oncology, 2020
BACKGROUND We investigated differences in radiation-induced grade 3+ lymphopenia (G3+L), defined as an absolute lymphocyte count (ALC) nadir of
R. Mohan, Amy Y. Liu, P. Brown, A. Mahajan, J. Dinh, C. Chung, S. McAvoy, M. McAleer, Steven H. Lin, Jing Li, A. Ghia, Cong Zhu, E. Sulman, J. D. de Groot, A. Heimberger, S. McGovern, C. Grassberger, H. Shih, S. Ellsworth, D. Grosshans   +19 more
semanticscholar   +1 more source

Impact of proton therapy on antitumor immune response

Scientific Reports, 2021
Radiotherapy delivered using photons induces an immune response that leads to modulation of the tumor microenvironment. Clinical studies are ongoing to evaluate immune checkpoint inhibitors in association with photon radiotherapy. At present, there is no
C. Mirjolet, A. Nicol, E. Limagne, Carole Mura, C. Richard, V. Morgand, M. Rousseau, R. Boidot, F. Ghiringhelli, G. Noel, H. Burckel   +10 more
semanticscholar   +1 more source

Technical assessment of the NDI Polaris Vega optical tracking system

Radiation Oncology, 2021
The Polaris product line from Northern Digital Inc. is well known for accurate optical tracking measurements in research and medical environments. The Spectra position sensor, to date often found in image guided radiotherapy suites, has however reached ...
Giovanni Fattori, Antony John Lomax, Damien Charles Weber, Sairos Safai   +3 more
doaj   +1 more source

MR-guided proton therapy: a review and a preview

Radiation Oncology, 2020
Background The targeting accuracy of proton therapy (PT) for moving soft-tissue tumours is expected to greatly improve by real-time magnetic resonance imaging (MRI) guidance.
A. Hoffmann, B. Oborn, M. Moteabbed, Susu Yan, T. Bortfeld, A. Knopf, H. Fuchs, D. Georg, J. Seco, M. Spadea, O. Jäkel, C. Kurz, K. Parodi   +12 more
semanticscholar   +1 more source

Consensus Statement on Proton Therapy for Prostate Cancer

International Journal of Particle Therapy, 2021
Proton therapy is a promising but controversial treatment in the management of prostate cancer. Despite its dosimetric advantages when compared with photon radiation therapy, its increased cost to patients and insurers has raised questions regarding its ...
C. Bryant, R. Henderson, R. Nichols, W. Mendenhall, B. Hoppe, C. Vargas, T. Daniels, C. Choo, R. Parikh, H. Giap, J. Slater, N. Vapiwala, W. Barrett, A. Nanda, M. Mishra, Seungtaek L. Choi, J. Liao, N. Mendenhall   +17 more
semanticscholar   +1 more source

Comparison of CBCT based synthetic CT methods suitable for proton dose calculations in adaptive proton therapy

Physics in Medicine and Biology, 2020
In-room imaging is a prerequisite for adaptive proton therapy. The use of onboard cone-beam computed tomography (CBCT) imaging, which is routinely acquired for patient position verification, can enable daily dose reconstructions and plan adaptation ...
A. Thummerer, P. Zaffino, A. Meijers, G. Marmitt, J. Seco, R. Steenbakkers, J. Langendijk, S. Both, M. Spadea, A. Knopf   +9 more
semanticscholar   +1 more source

Roadmap: proton therapy physics and biology

Physics in Medicine and Biology, 2020
The treatment of cancer with proton radiation therapy was first suggested in 1946 followed by the first treatments in the 1950s. As of 2020, almost 200 000 patients have been treated with proton beams worldwide and the number of operating proton therapy (
H. Paganetti, C. Beltran, S. Both, L. Dong, J. Flanz, K. Furutani, C. Grassberger, D. Grosshans, A. Knopf, J. Langendijk, H. Nyström, K. Parodi, B. Raaymakers, C. Richter, G. Sawakuchi, J. Schippers, S. Shaitelman, K. Teo, J. Unkelbach, P. Wohlfahrt, A. Lomax   +20 more
semanticscholar   +1 more source