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Results for "series cine": 8 found

A Deformable Registration-Based Pipeline for the Characterisation of Respiratory Motion from 2D Lung Cine MRI

Authors: Michael W. Kissick, Chung Tin Lo, Jamie R McClelland, Niek Schreuder, Tracy Underwood

Affiliation: Hawkes Institute, University College London, Leo Cancer Care

Abstract Preview: Purpose: The emerging field of upright radiotherapy raises the question of how respiratory motion differs between upright and supine treatment postures. Therefore, we have developed a versatile pipeli...

Assessing Long-Term Stability of Parylene-Coated, 3D-Printed Plastic Vessels for Water Calorimetry-Based Radiation Dosimetry

Authors: Philip Cutter, Mark D'Souza, Arman Sarfehnia

Affiliation: Toronto Metropolitan University, Sunnybrook Health Sciences Centre, Sunnybrook Health Science Center

Abstract Preview: Purpose: Water calorimetry (WC) serves as an important standard for measuring absorbed dose to water, an essential metric in radiation therapy. WC directly and absolutely quantifies energy deposition ...

Commission and Clinical Implementation of the 1st Step-and-Shoot Proton Arc Therapy for Head and Neck Cancer Patient Treatment

Authors: Xiaoda Cong, Rohan Deraniyagala, Xuanfeng Ding, Xiaoqiang Li, Jian Liang, Peilin Liu, Craig Stevens, Xiangkun Xu, Weili Zheng

Affiliation: Corewell Health William Beaumont University Hospital, Corewellhealth William Beaumont University Hospital, William Beaumont University Hospital, Corewellhealth William Beaumont Hospital, Department of Radiation Oncology, Corewell Health William Beaumont University Hospital

Abstract Preview: Purpose:
Commission a step-and-shoot arc therapy(SPArc-step&shoot) for treating head-neck cancer patients as a desired interim milestone toward full dynamic treatment.
Methods:
An in-house de...

Enhancing Radiation Oncology Imaging with a Novel Variational Model Decomposition, Radon Transformation, and Kohonen Self-Organizing Map Denoising Framework

Authors: Hassan Bagher-Ebadian, Justine M. Cunningham, Anthony J. Doemer, Mohammad M. Ghassemi, Joshua P. Kim, Benjamin Movsas, Kundan S Thind

Affiliation: Michigan State University, Henry Ford Health

Abstract Preview: Purpose: Reduction of noise in medical images critically enables improved accuracy in delineating tumors and organs at risk, leading to more precise treatment planning and safer image-guided radiation...

Multiple x-Ray Source Array (MXA) System Development for Better Ray Sampling in Large Coverage Axial CT Imaging

Authors: Craig K Abbey, John M. Boone, Richard E. Colbeth, Andrew M. Hernandez, Sarah E. McKenney, Vance Robinson, Paul Schwoebel, Jeffrey H. Siewerdsen, Alejandro Sisniega, Wojciech B. Zbijewski

Affiliation: UC Santa Barbara, University of California, UT MD Anderson Cancer Center, Johns Hopkins University, University of New Mexico Albuquerque, UC Davis Health, Varex Imaging Corporation

Abstract Preview: Purpose:
While wide coverage (160 mm) CT scanners can image whole organs (e.g. heart, brain, kidneys, etc.) in one axial scan, the peripheral regions of the field of view (along z) suffer from cons...

Spectrometry-Based Determination of X-Ray Tube Endpoint Potentials

Authors: Wesley S. Culberson, Ryan Gardner, John Thomas Stasko

Affiliation: Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin - Madison, University of Wisconsin

Abstract Preview: Purpose: X-ray tube voltage is a critical parameter in influencing an X-ray tubeโ€™s beam quality. The endpoint tube potential, the potential difference between the X-ray tubeโ€™s cathode and anode, is pa...

Towards Clinical Translation: Optical Methods Deliver in-Vivo per-Pulse Dosimetry in Electron Flash-RT

Authors: Petr Bruza, Rafael Carballeira, Megan Clark, David J. Gladstone, Austin Sloop, Roman Vasyltsiv, Kevin Jacob Willy

Affiliation: Dartmouth College, Thayer School of Engineering, Dartmouth College

Abstract Preview: Purpose: Develop an optical dosimetry system to accomplish standard of care on-patient dosimetry and pretreatment quality assurance for ultra-high dose rate (UHDR) electron therapy ahead of human tria...

Two-Element Complementary Sensor for out-of-Plane Tracking in MR-Guided Radiotherapy

Authors: Zhaohui Han, Piotr Zygmanski

Affiliation: Brigham and Womenโ€™s Hospital, Dana Farber Cancer Institute, Harvard Medical School, Department of Radiation Oncology, Brigham and Womenโ€™s Hospital, Dana-Farber Cancer Institute, Harvard Medical School

Abstract Preview: Purpose: Real-time motion tracking/gating are oftentimes limited to a single sagittal plane on many magnetic resonance linear accelerators (MR-Linac). Out-of-plane motion is therefore difficult to det...