Search Submissions 🔎

Results for "field overlap": 11 found

A Bibliometric Analysis on Medical Physics Research Trends in India

Authors: Sreejesh MS, Subramani Vellaiyan

Affiliation: Kuwait Cancer Control Center, All India Institute of Medical Sciences

Abstract Preview: Purpose: Bibliometric analysis is a powerful statistical tool for evaluating scientific literature and identifying research trends through the quantitative assessment of scholarly output. This study a...

A Monte Carlo Simulation Framework for Investigating the Effect of Inter-Track Coupling on H2O2 Productions at Ultra-High Dose Rates

Authors: Ramin Abolfath, Sedigheh Fardirad, Abbas Ghasemizad, Houda Kacem, Marie Catherine Vozenin

Affiliation: University of Guilan, Universite de Lausanne, University Hospital, Geneva, Howard University

Abstract Preview: Purpose: Lower production of H2O2 in water is a hallmark of ultra-high dose rate (UHDR) compared to the conventional dose rate (CDR). The current computational models are in the opposite of the experi...

Conformal Flash for Large Treatment Fields

Authors: Julien Forthomme, Carolina Llina Fuentes, Valentin Hamaide, Lucian Hotoiu, Rudi Labarbe, Rasmus Nilsson, Arnaud Pin, Francois Vander Stappen, Erik Traneus

Affiliation: RaySearch Laboratories AB, Ion Beam Applications SA

Abstract Preview: Purpose: Conformal FLASH achieves ultra-high-dose-rate (UHDR) proton therapy (>40 Gy/sec) by scanning a mono-energetic pencil beam through accessories (range shifter, Conformal Energy Modulator, apert...

Deep Learning-Based Segmentation Using Cine Epid Images for Real-Time Tumor Monitoring

Authors: Fumiaki Komatsu, Shunsuke Moriya, Ryosuke Nakamura, Takeji Sakae, Toshiyuki Terunuma, Tetsuya Tomita

Affiliation: Graduate School of Comprehensive Human Sciences, University of Tsukuba, Institute of Medicine, University of Tsukuba, Proton Medical Research Center, University of Tsukuba, Department of Radiology, University of Tsukuba Hospital

Abstract Preview: Purpose: To develop a deep learning (DL) model capable of accurately tracking lung tumors independent of beam angle variations.
Methods: A thoracic dynamic phantom simulating lung motion in the sup...

Dosimetric Effect of Patient Positioning Errors in Dual-Isocenter VMAT for Bilateral Breast Cancer Treatment: A Quantitative Assessment

Authors: Awens Alphonse, Nebi Demez, Noufal Manthala Padannayil, Haley Park, Shyam Pokharel, Suresh Rana, Lauren A. Rigsby, Nishan Shrestha, Somol Sunny

Affiliation: Florida Atlantic University, Lynn Cancer Institute, Boca Raton Regional Hospital, Baptist Health South Florida

Abstract Preview: Purpose: This study evaluates the dosimetric effects of patient positioning errors, including setup inaccuracies and yaw deviations, on dual-isocenter volumetric modulated arc therapy (VMAT) plans for...

Establishing Comprehensive QA for Single-Isocenter Multiple Targets Stereotactic Radiosurgery

Authors: Angel Gomez, Titania Juang, Grace Gwe-Ya Kim, Boyu Meng

Affiliation: UC San Diego, UCSD, University of California San Diego

Abstract Preview: Purpose: Single-Isocenter Multiple Targets (SIMT) Stereotactic Radiosurgery (SRS) is widely used for its precision and effectiveness. However, standardized quality assurance (QA) protocols for SIMT SR...

Evaluating Dose Variability in Bladder Contouring for MR-Guided Prostate Cancer Radiotherapy

Authors: Emily Helen Hayes, Chihray Liu

Affiliation: University of Florida

Abstract Preview: Purpose: To evaluate dosimetric discrepancies in bladder dose calculations among rigid, deformed, and manual contouring methods in prostate cancer patients and assess dose variations resulting from bl...

Geometrically Derived Density Compensation Function for 3D Non-Cartesian MRI Reconstruction

Authors: Oluyemi Bright Aboyewa, KyungPyo Hong, Daniel Kim

Affiliation: Department of Radiology, Northwestern University

Abstract Preview: Purpose: While non-Cartesian MRI is desirable for fast imaging with high spatial resolution and robustness to motion, it requires long post-processing times. Preconditioning with an adequate density c...

Learning from Failures – Case Studies into Failing Patient Specific Quality Assurance Plans

Authors: Christopher S. Melhus, Elizabeth Meyer, Cassandra Stambaugh

Affiliation: Tufts Medical Center

Abstract Preview: Purpose: To investigate the clinical treatment planning parameters that impact patient-specific quality assurance (PSQA) passing rates for hippocampal avoidance whole brain (HAWB) treatment plans.
...

Planning and Delivering Homogenous Dose to Craniospinal Irradiation on Linear Accelerator

Authors: Issra Rashed, Jennie Wilder, Jingeng Zhu

Affiliation: Rush Riverside Cancer Institute, Advanced Oncology Solutions (AOS) Varian, a Siemens Healthineers company

Abstract Preview: Purpose: Develop a method to plan and deliver homogeneous dose to Craniospinal(CS) irradiation on Linear Accelerator.
Methods: Three treatment planning volumes (PTV) are created in sequence from su...

Two Radiochemical Monte Carlo Models to Investigate the Radical Yields Under Proton Flash Irradiations

Authors: Yujie Chi, Yao Hao, Xun Jia, Youfang Lai, Yuting Peng, Francisco Javier Reynoso, Lingshu Yin, Tianyu Zhao, Xiandong Zhao

Affiliation: Johns Hopkins University, Washington University School of Medicine, Department of Radiation Oncology, Washington University School of Medicine, Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University, Department of Physics, University of Texas at Arlington, Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, University of South Florida

Abstract Preview: Purpose: FLASH radiation therapy has shown remarkable tissue sparing effects compared to radiation therapy at conventional dose rates (CDR). Yet, its mechanism remains unclear. Radical production modu...