Results 1 to 10 of about 1,345,844 (292)

Spot Weight Adaptation for Moving Target in Spot Scanning Proton Therapy [PDF]

Frontiers in Oncology, 2015
Purpose: This study describes a real-time spot weight adaptation method in spot-scanning proton therapy for moving target or moving patient, so that the resultant dose distribution closely matches the planned dose distribution. Materials and Methods: The
Paul eMorel, Xiaodong eWu, Guillaume eBlin, Guillaume eBlin, Stéphane eVialette, Ryan eFlynn, Daniel eHyer, Dongxu eWang   +7 more
doaj   +8 more sources

A scanning dynamic collimator for spot-scanning proton minibeam production [PDF]

Scientific Reports, 2021
In proton minibeam radiation therapy, proton minibeams are typically produced by modulating a uniform field using a multislit collimator. Multislit collimators produce minibeams of fixed length and width, and a new collimator has to be manufactured each ...
Marios Sotiropoulos, Yolanda Prezado
doaj   +6 more sources

Spot Scanning Proton Therapy for Sinonasal Malignant Tumors [PDF]

International Journal of Particle Therapy, 2021
Purpose: Treatment of sinonasal malignant tumors is challenging, and evidence to establish a standard treatment is limited. Our objective was to evaluate the efficacy and safety of spot scanning proton therapy (SSPT) for sinonasal malignant tumors ...
Koichiro Nakajima, MD, Hiromitsu Iwata, MD, Yukiko Hattori, MD, Kento Nomura, MD, Shingo Hashimoto, MD, Toshiyuki Toshito, PhD, Kensuke Hayashi, MS, Yo Kuroda, MD, Hideo Fukano, DMD, Hiroyuki Ogino, MD, Yuta Shibamoto, MD   +10 more
doaj   +2 more sources

SPOT: Scanning plant IoT facility for high-throughput plant phenotyping [PDF]

HardwareX, 2023
Many plant phenotyping platforms have been kept out of the reach of smaller labs and institutions due to high cost and proprietary software. The Scanning Plant IoT (SPOT) Facility, located at the University of Florida, is a mobile, laboratory-based ...
Stephen Lantin, Kelli McCourt, Nicholas Butcher, Varun Puri, Martha Esposito, Sasha Sanchez, Francisco Ramirez-Loza, Eric McLamore, Melanie Correll, Aditya Singh   +9 more
doaj   +2 more sources

Linear Energy Transfer Incorporated Spot-Scanning Proton Arc Therapy Optimization: A Feasibility Study [PDF]

Frontiers in Oncology, 2021
PurposeTo integrate dose-averaged linear energy transfer (LETd) into spot-scanning proton arc therapy (SPArc) optimization and to explore its feasibility and potential clinical benefits.MethodsAn open-source proton planning platform (OpenREGGUI) has been
Xiaoqiang Li, Xuanfeng Ding, Weili Zheng, Gang Liu, Gang Liu, Guillaume Janssens, Kevin Souris, Ana M. Barragán-Montero, Di Yan, Craig Stevens, Peyman Kabolizadeh   +10 more
doaj   +2 more sources

Spot-Scanning Confocal Photon Beams for Hypofractionated Brain Radiosurgery [PDF]

Technology in Cancer Research & Treatment
Introduction Stereotactic radiosurgery (SRS) has been broadly used to treat brain tumors. In this study, a dose kernel-based spot scanning (DKSC) treatment delivery has been developed for hypofractionated brain SRS.
Lijun Ma PhD, Shuang Luan PhD, Nguyen Phuong Dang PhD, Benjamin Ziemer PhD, Steve Braunstein MD, PhD, Michael McDermott MD, Cheng Yu PhD, Gabriel Zada MD, Eric L Chang MD   +8 more
doaj   +2 more sources

Clinical Viability of an Active Spot Scanning Beam Delivery System With a Newly Developed Carbon-Ion Treatment Planning System [PDF]

Advances in Radiation Oncology
Purpose: Although active spot scanning irradiation technique is theoretically superior to passive-scattered broad beam irradiation with respect to normal tissue sparing, corroborations of the clinical benefit of carbon-ion spot scanning have remained ...
Yixiao Guo, MD, Zhiqiang Liu, MD, Shifang Feng, MD, Hongyi Cai, MD, Qiuning Zhang, PhD   +4 more
doaj   +2 more sources

A feasibility study on a machine-learning-based quality assurance tool for spot-scanning proton therapy using delivery log files and treatment plans [PDF]

Physics and Imaging in Radiation Oncology
Background and purpose: Although pencil beam scanning provides superior dose conformity, delivery uncertainties remain in beam monitoring and steering systems. This study evaluates a machine learning model that predicts delivered spot positions from plan
Sang Kyun Yoo, Sridhar Yaddanapudi, Bo Lu, Ethan Stolen, Siddhant Sen, Byongsu Choi, Jin Sung Kim, Keith Furutani, Chris Beltran, James J. Sohn   +9 more
doaj   +2 more sources

Analysis of the Rate of Re-planning in Spot-Scanning Proton Therapy [PDF]

International Journal of Particle Therapy, 2022
Purpose: Finite proton range affords improved dose conformality of radiation therapy when patient regions-of-interest geometries are well characterized.
Yue-Houng Hu, PhD, Riley H. Harper, Noelle C. Deiter, CMD, RTT, Jaden D. Evans, MD, Anita Mahajan, MD, Jon J. Kruse, PhD, Daniel W. Mundy, PhD   +6 more
doaj   +2 more sources

Evaluation of dosimetry quantities in passive scattering and spot scanning methods in proton therapy based on GATE simulation [PDF]

مجله علوم و فنون هسته‌ای, 2022
Thespot-scan based methods are expected to perform better than other methods for proton therapy in delivering the dose to the intended target. In this study, the GATE computer code is used to evaluate important dosimetric quantities in proton therapy ...
A. Asadi, S.A. Hosseini, N. Vosoughi
doaj   +1 more source