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Results for "angular correction": 8 found

Characterization, Commissioning, and Clinical Evaluation of a Commercial Beo Optically Stimulated Luminescence (OSL) System

Authors: Brett G Erickson, Joseph P. Kowalski, Xinyi Li, Qiuwen Wu, Sua Yoo

Affiliation: Duke University, Mayo Clinic - Department of Radiation Oncology, Duke University Medical Center

Abstract Preview: Purpose: Characterization and commissioning of the BeO-based myOSLchip system was performed (per TG191) to assess its feasibility as a full replacement for the recalled Landauer aluminum oxide OSL in ...

Commissioning of a Near Real-Time In Vivo Film Dosimetry System

Authors: Maria F. Chan, Indra J. Das, Xiuxiu He, Seng Boh Gary Lim, Jeonghoon Park, Yunjie Yang

Affiliation: Department of Medical Physics, Memorial Sloan Kettering Cancer Center, Northwestern Memorial Hospital, Northwestern University Feinberg School of Medicine, Memorial Sloan Kettering Cancer Center

Abstract Preview: Purpose: There is a need for accurate and flexible in-vivo dosimetry systems, particularly for special procedures. Effective dosimetry is crucial for dose verification and maintaining records. A new r...

Correcting for the Cherenkov-to-Dose Conversion for Tset Patients Using Monte Carlo Simulations

Authors: Baozhu Lu, Timothy C. Zhu, Yifeng Zhu

Affiliation: University of Pennsylvania

Abstract Preview: Purpose: Cherenkov intensity can be quantitatively correlated to surface dose but need certain corrections for accurate dose measurements. This study aims to investigate the impact of incident beam an...

Deformable Scintillator Array Dosimetry for In Vivo Volumetric Dose and Dose-Rate Validation of Uhdr Proton Therapy

Authors: Petr Bruza, Megan Clark, David J. Gladstone, Joseph Harms, Anthony E. Mascia, Brian W Pogue, Roman Vasyltsiv, Zhiyan Xiao, Rongxiao Zhang, Yongbin Zhang

Affiliation: Cincinnati Children's Proton Therapy Center, University of Missouri, Dartmouth College, Thayer School of Engineering, Dartmouth College, Washington University in St. Louis, University of Wisconsin - Madison

Abstract Preview: Purpose: With developing FLASH trials requiring diligent delivery monitoring, current proton therapy in-vivo dosimetry (IVD) cannot provide comprehensive verification, including dose and dose-rate vol...

Dosimetric Impact of Monte Carlo Physics Models in Electronic Brachytherapy Simulations

Authors: David Ayala Alvarez, Facundo Ballester, Luc Beaulieu, Francisco Berumen-Murillo, Jean-Simon Cote, Ernesto Mainegra-Hing, Iymad Mansour, Gaël Ndoutoume-Paquet, Jan P. Seuntjens, Rowan M. Thomson, Christian Valdes, Javier Vijande, Peter G. Watson

Affiliation: Département de physique, de génie physique et d'optique, Université Laval, Princess Margaret Cancer Centre & University of Toronto, McGill University, Department of Physics and Medical Physics Unit, McGill University, IFIC-UV, University of Valencia, National Research Council Canada, Carleton University, 5Service de Physique Médicale et de Radioprotection, Centre Intégré de Cancérologie, CHU de Québec- Université Laval et Centre de recherche du CHU de Québec, Nuclear Medicine Department, Hospital Regional de Antofagasta, Université Laval, Carleton Laboratory for Radiotherapy Physics, Department of Physics, Carleton University

Abstract Preview: Purpose: Low-energy X-ray beams used in electronic brachytherapy (eBT) pose unique dosimetric challenges due to high depth-dose gradients, material-dependent detector responses, and the absence of sta...

Implementing TG-191 for Robust Calibration of Scintillation Imaging As a Clinical dosimetry Tool

Authors: Petr Bruza, Megan Clark, David J. Gladstone, Lesley A Jarvis, Allison Matous

Affiliation: Thayer School of Engineering, Dartmouth College, Dartmouth Cancer Center, Dartmouth Health

Abstract Preview: Purpose: Scintillation imaging has demonstrated unique advantages to existing clinical in vivo dosimetry (IVD) techniques by enabling full-field visualization, direct comparison to the treatment plan,...

Improving Output Stability with Angular Correction Factor on Pencil Beam Scanning Proton System

Authors: Akbar Anvari, Carnell J. Hampton, Melanie R. Piantino, Kai Yang

Affiliation: Levine Cancer Institute, Atrium Health

Abstract Preview: Purpose: To evaluate the effectiveness of angular correction factor for output stability on Mevion S250i Hyper scanning machine, which allows user to apply correction factors for output at selected ga...

Validation of SRS Mapcheck for Patient-Specific Quality Assurance of Cyberknife

Authors: Dong Wook Kim, Hojae Kim, Hojin Kim, Jin Sung Kim, Tae Ho Kim, Sangmin Lee

Affiliation: Department of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine

Abstract Preview: Purpose: The CyberKnife system, designed for stereotactic radiosurgery (SRS) and stereotactic body radiotherapy (SBRT), considers SRS MapCHECK an effective tool for patient-specific QA (PSQA). This wo...