Results 21 to 30 of about 4,358 (152)

Determination of surface dose in pencil beam scanning proton therapy [PDF]

Medical Physics, 2020
Purpose/objectiveQuantification of surface dose within the first few hundred water equivalent µm is challenging. Nevertheless, it is of large interest for the proton therapy community to study dose effects in the skin. The experimental determination is affected by the detector properties, such as the detector volume and material.
A. Kern, C. Bäumer, K. Kröninger, L. Mertens, B. Timmermann, J. Walbersloh, J. Wulff   +6 more
openaire   +2 more sources

Correction: A novel approach for proton therapy pencil beam scanning patient specific quality assurance using an integrated detector system and 3D dose reconstruction [PDF]

Frontiers in Oncology
Joseph J. Bateman, Sonia Escribano-Rodriguez, Samuel Flynn, Samuel Flynn, Tony Price, Raffaella Radogna, Raffaella Radogna, Saad Shaikh, Harry Barnett, Connor Godden, Matthew Warren, Febian, Catherine Burne, Alison Warry, Lee Harrison-Carey, Colin Baker, Simon Jolly   +16 more
doaj   +2 more sources

Technical Delivery Parameters of 2000 Proton Treatment Courses [PDF]

International Journal of Particle Therapy, 2020
Purpose: To summarize the technical delivery parameters of proton plans delivered at the Mayo Clinic in Rochester, Minnesota. Materials and Methods: The database of treated patient proton plans was queried to extract field parameters such as gantry angle,
Amanda J. Deisher, Thomas J. Whitaker, Chris J. Beltran, Robert L. Foote, Michael G. Haddock, Anita Mahajan   +5 more
doaj   +1 more source

Dosimetric Comparison of Various Spot Placement Techniques in Proton Pencil Beam Scanning [PDF]

International Journal of Particle Therapy, 2022
Purpose: To present quantitative dosimetric evaluations of five proton pencil beam spot placement techniques. Materials and Methods: The spot placement techniques that were investigated include two grid-based (rectilinear grid and hexagonal grid, both ...
Mahboob ur Rehman, PhD, Omar A. Zeidan, PhD, Twyla Willoughby, PhD, Sanford L. Meeks, PhD, Patrick Kelly, MD, Kevin Erhart, PhD   +5 more
doaj   +1 more source

Treatment of ocular tumors through a novel applicator on a conventional proton pencil beam scanning beamline

Scientific Reports, 2022
Treatment of ocular tumors on dedicated scattering-based proton therapy systems is standard afforded due to sharp lateral and distal penumbras. However, most newer proton therapy centers provide pencil beam scanning treatments.
Rajesh Regmi, Dominic Maes, Alexander Nevitt, Allison Toltz, Erick Leuro, Jonathan Chen, Lia Halasz, Ramesh Rengan, Charles Bloch, Jatinder Saini   +9 more
doaj   +1 more source

Parallel‐plates‐based Dirac Leaky Wave Antennas

IET Microwaves, Antennas & Propagation, 2021
In this work, the authors experimentally show Dirac Leaky Wave Antennas (DLWAs) at upper microwave frequencies. For the first time, DLWAs are implemented using simple Parallel plate waveguide (PPW) technology, while yielding desirable radiation features ...
Sina Rezaee, Mohammad Memarian, Mohammad Ahmadian   +2 more
doaj   +1 more source

FLASH Irradiation with Proton Beams: Beam Characteristics and Their Implications for Beam Diagnostics

Applied Sciences, 2021
FLASH irradiations use dose-rates orders of magnitude higher than commonly used in patient treatments. Such irradiations have shown interesting normal tissue sparing in cell and animal experiments, and, as such, their potential application to clinical ...
Konrad P. Nesteruk, Serena Psoroulas
doaj   +1 more source

Normal Tissue Integral Dose as a Result of Prostate Radiation Therapy: A Quantitative Comparison Between High-Dose-Rate Brachytherapy and Modern External Beam Radiation Therapy Techniques

Advances in Radiation Oncology, 2023
Purpose: Quantification of integral radiation dose delivered during treatment for prostate cancer is lacking. We performed a comparative quantification of dose to nontarget body tissues delivered via 4 common radiation techniques: conventional volumetric
Vincent P. Grzywacz, MD, Jessica D. Arden, MD, PhD, Nikhil P. Mankuzhy, MD, Gary S. Gustafson, MD, Evelyn A. Sebastian, BS, Veronica L. Abbott, MS, Kailee J. Walters, MS, Julie A. Puzzonia, MS, Amy S. Limbacher, BS, Jason M. Hafron, MD, Daniel J. Krauss, MD   +10 more
doaj   +1 more source

Layout optimization of the beam spot locations scanned by electromagnets in particle beam therapy

Mechanical Engineering Journal, 2022
This paper presents a layout optimization method of the spot locations of pencil beam scanning for particle beam cancer therapy. With the pencil beam scanning technique, the particle beam is scanned from spot to spot in the tumor by using scanning ...
Yusuke SAKAMOTO, Takayuki NAGASHIMA, Yuki SATO, Kazuhiro IZUI, Shinji NISHIWAKI   +4 more
doaj   +1 more source

Pencil Beam Scanning Proton Therapy for Rhabdomyosarcoma of the Biliary Tract [PDF]

Cureus, 2017
Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma of childhood with 250-350 cases diagnosed annually in the United States. Biliary tract rhabdomyosarcoma is rare, representing
Pater, Luke, Turpin, Brian, Mascia, Anthony   +2 more
openaire   +2 more sources