Results 31 to 40 of about 4,080,669 (137)

Impact of interfractional target motion in locally advanced cervical cancer patients treated with spot scanning proton therapy using an internal target volume strategy

Physics and Imaging in Radiation Oncology, 2021
Background and purpose: The more localized dose deposition of proton therapy (PT) compared to photon therapy might allow a reduction in treatment-related side effects but induces additional challenges to address. The aim of this study was to evaluate the
Stéphane Niyoteka, Thomas Berger, Lars Ulrik Fokdal, Jørgen Breede Baltzer Petersen, Andras Zolnay, Mischa Hoogeman, Kari Tanderup, Håkan Ulf Nystrom   +7 more
doaj   +1 more source

Optimization of adaptive radiation therapy in cervical cancer: Solutions for photon and proton therapy [PDF]

, 2016
In cervical cancer radiation therapy, an adaptive strategy is required to compensate for interfraction anatomical variations in order to achieve adequate dose delivery.
van de Schoot, A.J.A.J.
core   +2 more sources

A survey of practice patterns for adaptive particle therapy for interfractional changes

Physics and Imaging in Radiation Oncology, 2023
Background and purpose: Anatomical changes may compromise the planned target coverage and organs-at-risk dose in particle therapy. This study reports on the practice patterns for adaptive particle therapy (APT) to evaluate current clinical practice and ...
Petra Trnkova, Ye Zhang, Toshiyuki Toshito, Ben Heijmen, Christian Richter, Marianne C. Aznar, Francesca Albertini, Alessandra Bolsi, Juliane Daartz, Antje C. Knopf, Jenny Bertholet   +10 more
doaj   +1 more source

Treatment planning study comparing proton therapy, RapidArc and intensity modulated radiation therapy for a synchronous bilateral lung cancer case

, 2014
Purpose: The main purpose of this study is to perform a treatment planning study on a synchronous bilateral non-small cell lung cancer case using three treatment modalities: uniform scanning proton therapy, RapidArc, and intensity modulated radiation ...
Zheng, Yuanshui; Department of Medical Physics, ProCure Proton Therapy Center, Oklahoma City, OK, USA., Zhao, Li; Department of Medical Physics, ProCure Proton Therapy Center, Oklahoma City, OK, USA., Risalvato, Dina; Department of Medical Dosimetry, ProCure Proton Therapy Center, Oklahoma City, Oklahoma, USA., Vargas, Carlos; Radiation Oncology, Proton Collaborative Group (PCG), Bloomington, Indiana, USA., Rana, Suresh; Department of Medical Physics, ProCure Proton Therapy Center, Oklahoma City, OK, USA., Pokharel, Shyam; Department of Medical Physics, 21st Century Oncology, Fort Myers, Florida, USA., Cersonsky, Nancy; Department of Radiation Oncology, ProCure Proton Therapy Center, Oklahoma City, Oklahoma, USA.   +6 more
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Advances in proton therapy technology and global clinical applications

Frontiers in Oncology
Proton therapy, by leveraging its unique physical characteristic of the Bragg peak, enables high-precision dose delivery to the tumor target while effectively protecting surrounding normal tissues, and has become an important representative of advanced ...
Qi Zhang, Wencui Yang, Lina Tan, Xiangyu Guo, Tao Wang, Pengfei Zhu, Zhouchen Jing, Lei Ma, Jun Hou   +8 more
doaj   +1 more source

Potential margin reduction in prostate cancer proton therapy with prompt gamma imaging for online treatment verification

Physics and Imaging in Radiation Oncology, 2023
The potential of proton therapy is currently limited due to large safety margins. We estimated the potential reduction of clinical margins when using prompt gamma imaging (PGI) for online treatment verification of prostate cancer.
Stefanie Bertschi, Kristin Stützer, Jonathan Berthold, Julian Pietsch, Julien Smeets, Guillaume Janssens, Christian Richter   +6 more
doaj   +1 more source

A Two-Plane Proton Radiography System Using ATLAS IBL Pixel-Detector Modules

Instruments
Accurate knowledge of a patient’s anatomy during every treatment fraction in proton therapy is an important prerequisite to ensure a correct dose deposition in the target volume.
Hendrik Speiser, Claus Maximillian Bäcker, Johannes Esser, Alina Hild, Marco Iampieri, Ann-Kristin Lüvelsmeyer, Annsofie Tappe, Helen Thews, Kevin Kröninger, Jens Weingarten   +9 more
doaj   +1 more source

Association between proton pump inhibitor therapy and clostridium difficile infection: a contemporary systematic review and meta-analysis. [PDF]

, 2012
Introduction Emerging epidemiological evidence suggests that proton pump inhibitor (PPI) acid-suppression therapy is associated with an increased risk of Clostridium difficile infection (CDI).
Sutton, AJ, Imad M. Tleyjeh (104252), Tannir Mohamad Al, Alex J Sutton, AlGhamdi, M, Muhammad Riaz (104236), Bin Abdulhak, AA, Ibrahim Talal, Mushabab AlGhamdi (112556), Baddour, LM, Alasmari Faisal A., A. A. Bin Abdulhak (7656569), Abed Allehibi, Talal Ibrahim (112568), Allehibi, A., Alasmari, FA, Faisal A. Alasmari (112549), F. A. Alasmari (7656575), A. R. Khan (3951662), AlGhamdi Mushabab, A. AlLehibi (7656593), Khan, AR, Al Tannir, M, Tleyjeh, IM, I. M. Tleyjeh (7656566), AlGhamdi, M., Abed AlLehibi (112573), Khan, A. R., Alex J. Sutton (112577), Garbati Musa A., L. M. Baddour (7656596), Aref A Bin Abdulhak, M. A. Garbati (7656578), M. Al Tannir (7656584), Bin Abdulhak, A. A., M. AlGhamdi (7656581), Erwin, P. J., Imad M Tleyjeh, Khan Abdur Rahman, Tleyjeh, I. M., Patricia J Erwin, T. Ibrahim (7656590), Muhammad Riaz, Abdur Rahman Khan (104234), Garbati, MA, Allehibi, A, Bin Abdulhak Aref A., Erwin, PJ, Sutton Alex J., M. Riaz (7656572), Riaz Muhammad, Musa A Garbati, Alasmari, F. A., Patricia J. Erwin (104246), Talal Ibrahim, Abdur Rahman Khan, Ibrahim, T., Mushabab AlGhamdi, A. J. Sutton (7648487), Faisal A Alasmari, Ibrahim, T, Mohamad Al Tannir (112562), Mohamad Al Tannir, Erwin Patricia J., Larry M Baddour, Baddour Larry M., Al Tannir, M., P. J. Erwin (7656587), Aref A. Bin Abdulhak (104239), Garbati, M. A., Larry M. Baddour (104249), Riaz, Muhammad, Riaz, M, Tleyjeh Imad M., Baddour, L. M., Sutton, A. J., Musa A. Garbati (104244), AlLehibi Abed   +77 more
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Patient-specific stopping power calibration for proton therapy planning based on single-detector proton radiography. [PDF]

, 2015
A simple robust optimizer has been developed that can produce patient-specific calibration curves to convert x-ray computed tomography (CT) numbers to relative stopping powers (HU-RSPs) for proton therapy treatment planning.
Sharp, G, Royle, G, Lu, HM, Doolan, PJ, Testa, M, Bentefour, EH   +5 more
core  

Proton Therapy in Uveal Melanoma [PDF]

Background/Objectives: Uveal melanoma is the most common primary intraocular malignancy in adults. Treatment options for localized, early-stage disease include enucleation, brachytherapy, and proton beam therapy.
Choi, J. Isabelle, Yacoub, Irini, Chan, Adrian Wai, J. Isabelle Choi, Charles B. Simone, Chhabra, Arpit M., Haibo Lin, Irini Yacoub, Adrian Wai Chan, Arpit M. Chhabra, Lin, Haibo, Simone, Charles B.   +11 more
core   +1 more source