Results 41 to 50 of about 1,800,736 (210)

Inter-comparison of Dose Distributions Calculated by FLUKA, GEANT4, MCNP, and PHITS for Proton Therapy

EPJ Web of Conferences, 2017
The dose distributions from proton pencil beam scanning were calculated by FLUKA, GEANT4, MCNP, and PHITS, in order to investigate their applicability in proton radiotherapy.
Yang Zi-Yi, Tsai Pi-En, Lee Shao-Chun, Liu Yen-Chiang, Chen Chin-Cheng, Sato Tatsuhiko, Sheu Rong-Jiun   +6 more
doaj   +1 more source

Collimating individual beamlets in pencil beam scanning proton therapy, a dosimetric investigation

Frontiers in Oncology, 2022
The purpose of this work is to investigate collimating individual proton beamlets from a dosimetric perspective and to introduce a new device concept, the spot scanning aperture (SSA).
Jason Holmes, Jiajian Shen, Samir H. Patel, William W. Wong, Robert L. Foote, Martin Bues, Wei Liu   +6 more
doaj   +1 more source

Mapping initial and general recombination in scanning proton pencil beams

Physics in Medicine & Biology, 2020
Abstract The ion recombination is examined in parallel-plate ionization chambers in scanning proton beams at the Danish Centre for Particle Therapy and the Skandion Clinic. The recombination correction factor k s
J B Christensen, E Almhagen, L Stolarczyk, M Liszka, G G Hernandez, N Bassler, O Nørrevang, A Vestergaard   +7 more
openaire   +2 more sources

Successful Implementation of Image-Guided Pencil-Beam Scanning Proton Therapy in Medulloblastomas

Diagnostics, 2023
Medulloblastoma is the most common malignant brain tumour in children, while much rarer in adults. Although the prognosis and outcomes have greatly improved in the era of modern multidisciplinary management, long-term treatment-induced toxicities are ...
Anindita Das, Utpal Gaikwad, Ganapathy Krishnan, Adhithyan Rajendran, Sushama Patil, Preethi Subramaniam, Uday Krishna, Manoj G. Wakde, Srinivas Chilukuri, Rakesh Jalali   +9 more
doaj   +1 more source

Pencil‐beam scanning proton therapy for the treatment of glomus jugulare tumours

Journal of Medical Radiation Sciences, 2022
Introduction Glomus jugulare tumours (GJT) are benign tumours that arise locally and destructively in the base of the skull and can be successfully treated with radiotherapy.
Jiří Kubeš, Vladimír Vondráček, Michal Andrlik, Matěj Navrátil, Silvia Sláviková, Daniel Klika, Alexandra Haas, Kateřina Dědečková, Kateřina Kopečková, Barbora Ondrová, Eliška Rotnáglová, Štěpán Vinakurau, Alexander Grebenyuk, Jozef Rosina   +13 more
doaj   +1 more source

Pencil beam scanning proton therapy for pediatric intracranial ependymoma [PDF]

Journal of Neuro-Oncology, 2016
To assess the clinical outcome and late side effect profile of pencil beam scanning proton therapy (PT) delivered to children with intracranial ependymoma. Between July-2004 and March-2013, 50 patients with intracranial ependymoma (n = 46, grade 3) received involved-field PT at Paul Scherrer Institute (PSI).
Carmen Ares, Francesca Albertini, Martina Frei-Welte, Alessandra Bolsi, Michael A. Grotzer, Gudrun Goitein, Damien C. Weber   +6 more
openaire   +5 more sources

Long-Term Clinical Outcomes of Pencil Beam Scanning Proton Therapy for Benign and Non-benign Intracranial Meningiomas. [PDF]

, 2017
PURPOSE To assess and report long-term clinical outcomes regarding local control, overall survival, and toxicity-free survival after pencil beam scanning proton therapy for intracranial meningiomas at a single institution.
Schneider, Ralf A, Snider, James W, Alessandra Bolsi, Ulrike Kliebsch, Marc Walser, Walser, Marc, James W. Snider, Murray, Fritz R, Lomax, Antony J, Weber, Damien Charles, Antony J. Lomax, Fritz R. Murray, Kliebsch, Ulrike, Ralf A. Schneider, Damien C. Weber, Bolsi, Alessandra, Murray, Fritz R. (author), Schneider, Ralf A. (author), Weber DC, Lomax, Antony J. (author), Bolsi, Alessandra (author), Schneider RA, Snider JW, Walser, Marc (author), Snider, James W. (author), Weber, Damien C. (author), Walser M, Kliebsch U, Kliebsch, Ulrike (author), Murray FR, Lomax AJ, Bolsi A   +31 more
core   +1 more source

Characterization and performance evaluation of the first-proton therapy facility in India

Journal of Medical Physics, 2020
Purpose: The purpose of this study is to evaluate the performance characteristic of volumetric image-guided dedicated-nozzle pencil beam-scanning proton therapy (PT) system.
Dayananda Sharma Shamurailatpam, A Manikandan, K Ganapathy, M P Noufal, Kartikeshwar C Patro, T Rajesh, R Jalali   +6 more
doaj   +1 more source

Simultaneous Multiple Liver Metastasis Treated with Pencil Beam Proton Stereotactic Body Radiotherapy (SBRT) [PDF]

International Journal of Particle Therapy, 2021
Compared with photon stereotactic body radiotherapy (SBRT) plans that may have to use many more penetrating x-ray beams for each isocenter, proton SBRT with ultrahypofractionated doses use fewer beam angles and offer significantly reduced low-dose ...
Neil K. Taunk, MD, MSCTS, Brendan Burgdorf, MMP, Lei Dong, PhD, Edgar Ben-Josef, MD   +3 more
doaj   +1 more source

Conformal Dose Modulator for Proton Beam Therapy Part 1: A Simulation Study

Frontiers in Oncology, 2022
PurposeConformal dose deliveries in proton therapy utilize either a passive scattering system with a modulator or a pencil beam scanning (PBS) system. Efforts have been made to achieve conformal dose delivery by scanning a single energy layer of pencil ...
Zhexuan Zhang, Weizhao Zhao, Michael Butkus, Xiaodong Wu, Xiaodong Wu, Xiaodong Wu, Xiaodong Wu, Xiaodong Wu   +7 more
doaj   +1 more source