Results 81 to 90 of about 842,205 (230)

Feasibility of lattice radiation therapy using a noncoplanar vertex arrangement and dynamic conformal arcs

Journal of Applied Clinical Medical Physics, Volume 27, Issue 10, October 2026.
Abstract Background Current Lattice radiation therapy (LRT) mainly uses inverse IMRT/VMAT optimization, which is time‐consuming and complex; however the high modulation complexity compromises dosimetric accuracy and blurs the peak‑to‑valley dose ratio.
Haixia Cui, Wei Huang, Xin Yi, Wenli Lu, Qingfeng Jiang   +4 more
wiley   +1 more source

Density override‐based VMAT optimization to improve robustness at tissue‐air interfaces in head and neck radiotherapy

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Volumetric Modulated Arc Therapy (VMAT) is integral to head and neck (HN) radiation therapy; however, plan robustness may be compromised at air‐tissue interfaces. Highly modulated fluence directed at these areas can produce significant unexpected high‐dose regions in the event of minor variations in tissue density.
Sagarika Jain, Ashlee Ewing, Michael Weldon, Allison Palmiero, Daniel Christ, Emile Gogineni, Simeng Zhu, Sung Jun Ma, John C Grecula, Darrion L Mitchell, Sujith Baliga, Dukagjin M Blakaj, David J Konieczkowski   +12 more
wiley   +1 more source

Software for evaluation of EPR-dosimetry performance

, 2014
Electron paramagnetic resonance (EPR) with tooth enamel is a method extensively used for retrospective external dosimetry. Different research groups apply different equipment, sample preparation procedures and spectrum processing algorithms for EPR ...
Ivanov, D V, Shishkina, E A, Timofeev, Yu S   +2 more
core   +1 more source

Retrospective methods to estimate radiation dose at the site of breast cancer development after Hodgkin lymphoma radiotherapy

Clinical and Translational Radiation Oncology, 2017
Background: An increased risk of breast cancer following radiotherapy for Hodgkin lymphoma (HL) has now been robustly established. In order to estimate the dose–response relationship more accurately, and to aid clinical decision making, a retrospective
Nicola S. Russell, Inge M. Krul, Anna M. van Eggermond, Berthe M.P. Aleman, Rosie Cooke, Susanne Kuiper, Steven D. Allen, Matthew G. Wallis, Damien Llanas, Ibrahima Diallo, Florent de Vathaire, Susan A. Smith, Michael Hauptmann, Annegien Broeks, Anthony J. Swerdlow, Flora E. Van Leeuwen   +15 more
doaj   +1 more source

Prospective estimation of water equivalent diameter and SSDE using 3D landmark CT scans

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background 3D Landmark (3DLM) scans have recently been introduced in some new CT scanners for automatic scan planning instead of paired 2D localizers, with potential additional utility. Purpose The purpose of this work was to measure the accuracy and precision of 3DLM scans for determining water equivalent diameter (Dw${{D}_w}$) and size ...
Andrew M. Hernandez, Sarah Yoon, Michael T. Corwin, Eric S. Diaz, Ahmadreza Ghasemiesfe, Sarah E. McKenney, John M. Boone   +6 more
wiley   +1 more source

A rule‐based, feedback‐driven framework for fully automated prostate VMAT planning

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Manual prostate volumetric modulated arc therapy (VMAT) planning in Elekta Monaco is complex, time‐intensive, and prone to planner variability. Existing automation methods, such as knowledge‐based planning (KBP) and cloud‐based solutions often rely on external models rather than Monaco's native optimization.
Joel Sangster, Megan Taylor, David Jolly, Jerome Gastaldo, Friedlieb Lorenz   +4 more
wiley   +1 more source

Evaluation of the environ SRS immobilization mask system for HyperArc: Dosimetric attenuation, dose calculation accuracy, and clinical setup reproducibility

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Frameless thermoplastic masks are standard for intracranial stereotactic radiosurgery (SRS), with the Encompass (CQ Medical) widely used on the Varian HyperArc platform. A candidate mask must minimize beam attenuation, permit accurate dose calculation, and enable reproducible setup, yet these are rarely assessed together ...
Adi Robinson, Matthew R. Caldwell
wiley   +1 more source

Treatment plan dosimetric impact after catheter stretch during multi-catheter interstitial breast brachytherapy

Journal of Contemporary Brachytherapy, 2017
Purpose: Nylon 6/6 interstitial brachytherapy catheters may stretch when exposed to moisture, mechanical tension, and body temperature. The purpose of this study is to evaluate the magnitude of catheter stretch during a course of multi-catheter ...
Eeva Boman, Dean Paterson, Junou Huang, Shelley Pearson, Carol Johnson   +4 more
doaj   +1 more source

Beam geometry optimization and convergence mode evaluation for knowledge‐based planning of hippocampal avoidance whole‐brain radiotherapy: A cross‐platform study with quantitative scorecard assessment

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Hippocampal avoidance whole‐brain radiotherapy (HA‐WBRT) is used to treat brain metastases while preserving cognitive function by sparing the hippocampi. Volumetric modulated arc therapy (VMAT) is commonly used due to its ability to generate conformal dose distributions.
Anh Lam, Kirk Luca, Mandeep Kaur, Keyur D. Shah, Julia Seng, Kathryn Benner, Matthew Thomas, Hui‐Kuo Shu, Xiaofeng Yang, Chih‐Wei Chang, Justin Roper, Jie Ding   +11 more
wiley   +1 more source

Fast fourier transform based spectral features for machine learning prediction of gamma passing rates in virtual VMAT PSQA: A feasibility study

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Purpose This study aimed to evaluate the feasibility of fast Fourier transform (FFT) based spectral features for predicting volumetric modulated arc therapy (VMAT) gamma passing rates (GPRs) in virtual patient‐specific quality assurance (PSQA). Methods A total of 481 VMAT treatment plans were retrospectively collected.
Bing Yan, Hu Peng, Xudong Xue, Chichao Zheng, Aidong Wu   +4 more
wiley   +1 more source