Results 91 to 100 of about 2,171,676 (258)

Effects of cardiac motion on dose distribution during stereotactic arrhythmia radioablation treatment: A simulation and phantom study

Journal of Applied Clinical Medical Physics, Volume 26, Issue 5, May 2025.
Abstract Purpose Cardiac motion may degrade dose distribution during stereotactic arrhythmia radioablation using the CyberKnife system, a robotic radiosurgery system. This study evaluated the dose distribution changes using a self‐made cardiac dynamic platform that mimics cardiac motion. Methods The cardiac dynamic platform was operated with amplitudes
Takayuki Miyachi, Takeshi Kamomae, Fumitaka Kawabata, Kuniyasu Okudaira, Mariko Kawamura, Shunichi Ishihara, Shinji Naganawa   +6 more
wiley   +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

Auto-development issue in quality assurance of biological X-ray irradiator using Gafchromic EBT3 film

Results in Physics, 2017
Radiochromic films are convenient dosimeters for quality assurance of biological X-ray irradiators. However, their calibration curves (optical density vs. radiation dose) can have relatively short lifespans due to non-catalytic auto-development.
P.M. Chan, C.Y.P. Ng, Mehrdad Shahmohammadi Beni, S.S. Law, K.N. Yu   +4 more
doaj  

Evaluation of a complementary metal oxide semiconductor detector as a tool for stereotactic body radiotherapy plan quality assurance

Physics and Imaging in Radiation Oncology, 2023
Background and purpose: A sub-mm resolution Complementary Metal Oxide Semiconductor sensor has been developed for stereotactic radiotherapy quality assurance.
Chris J. Stepanek, Jackie A. Haynes, Sally Fletcher   +2 more
doaj  

High sensitivity radiochromic film dose comparisons [PDF]

Physics in Medicine and Biology, 2002
This short note investigates the dose characteristics of a relatively new high sensitivity radiochromic film (Gafchromic HS) and compares dose and energy response to various Gafchromic film types and radiographic (EDR-2) film. The original MD-55-1 and two improved sensitivity films, MD-55-2 and HS film, were investigated for energy and dose response ...
Martin J Butson, Martin J Butson, Peter K.N. Yu, Peter E Metcalfe, Tsang Cheung   +4 more
openaire   +2 more sources

Accuracy and sensitivity of four-dimensional dose calculation to systematic motion variability in stereotatic body radiotherapy (SBRT) for lung cancer [PDF]

, 2012
published_or_final_versio
CHAN, KH, Kwong, DLW, Ng, CY, Tam, EK, Tong, ASM   +4 more
core   +1 more source

In vivo transit dosimetry methodology for whole breast intensity modulated radiation therapy

Journal of Applied Clinical Medical Physics, Volume 26, Issue 5, May 2025.
Abstract Background In vivo transit dosimetry using an electronic portal imaging device (EPID‐IVTD) is an important tool for verifying the accuracy of radiation therapy treatments. Despite its potential, the implementation of EPID‐IVTD in breast intensity modulated radiation therapy (IMRT) treatments has not yet been standardized, limiting its clinical
Lucia Zirone, Elisa Bonanno, Giuseppina R. Borzì, Nina Cavalli, Alessia D'Anna, Andrea Girlando, Martina Pace, Giuseppe Stella, Carmelo Marino   +8 more
wiley   +1 more source

Results of a Geant4 benchmarking study for bio‐medical applications, performed with the G4‐Med system

Medical Physics, Volume 52, Issue 5, Page 2707-2761, May 2025.
Abstract Background Geant4, a Monte Carlo Simulation Toolkit extensively used in bio‐medical physics, is in continuous evolution to include newest research findings to improve its accuracy and to respond to the evolving needs of a very diverse user community.
Pedro Arce, Jay W. Archer, Lorenzo Arsini, Alexander Bagulya, David Bolst, Jeremy M. C. Brown, Barbara Caccia, Andrew Chacon, Giuseppe Antonio Pablo Cirrone, Miguel Antonio Cortés‐Giraldo, Dean Cutajar, Giacomo Cuttone, Paolo Dondero, Andrea Dotti, Bruce Faddegon, Serena Fattori, Christian Fedon, Susanna Guatelli, Akihiro Haga, Sebastien Incerti, Vladimir Ivanchenko, Dmitri Konstantinov, Ioanna Kyriakou, Albert Le, Zhuxin Li, Michel Maire, Alessandra Malaroda, Carlo Mancini‐Terracciano, Alfonso Mantero, Claire Michelet, Giuliana Milluzzo, Francesca Nicolanti, Mihaly Novak, Chihiro Omachi, Luciano Pandola, Jake Harold Pensavalle, Álvaro Perales, Yann Perrot, Giada Petringa, Silvia Pozzi, José Manuel Quesada, José Ramos‐Méndez, Francesco Romano, Anatoly B. Rosenfeld, Mitra Safavi‐Naeini, Dousatsu Sakata, Luis G. Sarmiento, Takashi Sasaki, Yoshihide Sato, Alberto Sciuto, Ioannis Sechopoulos, Edward C. Simpson, Ronny Stanzani, Alessandra Tomal, Toshiyuki Toshito, Hoang Ngoc Tran, Christopher White, Dennis H. Wright   +57 more
wiley   +1 more source

Evaluation of a synthetic single-crystal diamond detector for relative dosimetry on the Leksell Gamma Knife Perfexion radiosurgery system [PDF]

, 2015
Purpose: To evaluate the new commercial PTW-60019 synthetic single-crystal microDiamond detector (PTW, Freiburg, Germany) for relative dosimetry measurements on a clinical Leksell Gamma Knife Perfexion radiosurgery system. Methods: Detector output ratios
Alfonso, Anna Ascolese, Anna Gaudino, Antonella Stravato, Aspradakis, Azangwe, Battistoni, Bilge, Casanova Borca, Chalkley, Cheung, Ciancaglioni, Ferreira, Francesca Lobefalo, Giacomo Reggiori, Gianluca Verona-Rinati, Klawikowski, Lechner, Lindquist, Ma, Ma, Mack, Mandapaka, Marco Marinelli, Marsolat, Marta Scorsetti, Massager, Micke, Moskvin, Niroomand-Rad, Novotny, Novotny, Piera Navarria, Piero Picozzi, Pietro Mancosu, Pimpinella, Ralston, Ralston, Reinhardt, Scott, Stefano Tomatis, Suriyapee, Trnka, Tsai, Underwood, Valentina Palumbo, Yu, Zani   +47 more
core   +1 more source

Quality assurance procedures based on dosimetric, gamma analysis as a fast reliable tool for commissioning brachytherapy treatment planning systems

Radiology and Oncology, 2017
Fast and easily repeatable methods for commissioning procedures for brachytherapy (BT) treatment planning systems (TPS) are needed. Radiochromic film dosimetry with gamma analysis is widely used in external beam quality assurance (QA) procedures and ...
Zwierzchowski Grzegorz, Bieleda Grzegorz, Skowronek Janusz   +2 more
doaj   +1 more source