ConferenceCancer · January 1, 2025
BACKGROUND: Recipients of radiation therapy (RT) for head and neck cancer (HNC) are at significantly increased risk for carotid artery stenosis (CAS) and cerebrovascular disease (CVD). We sought to determine (1) cumulative incidences of CAS and CVD among H ...
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Journal ArticleJ Appl Clin Med Phys · January 2025
PURPOSE: To investigate dose differences between the planning CT (pCT) and dose calculated on pre-treatment verification CBCTs using DIR and dose summation for cervical cancer patients. METHODS: Cervical cancer patients treated at our institution with 45 G ...
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Journal ArticleLancet Oncol · June 2024
BACKGROUND: The health-care industry is a substantial contributor to global greenhouse gas emissions, yet the specific environmental impact of radiotherapy, a cornerstone of cancer treatment, remains under-explored. We aimed to quantify the emissions assoc ...
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Journal ArticleJournal of Applied Clinical Medical Physics · October 1, 2023
Concept inventories are multiple choice exams designed with the intention to test core concepts on specific subjects and evaluate common misconceptions. These tests serve as a useful tool in the classroom to assess value added by the instructor's education ...
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Journal ArticleJ Appl Clin Med Phys · June 2023
PURPOSE: The purpose of this survey study is to compare the experiences of programs and applicants in the MedPhys Match (MPM) in the 2020-21 match cycle with experiences reported from previous match cycles. The 2020-21 match cycle was unique in that recrui ...
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Journal ArticleJ Appl Clin Med Phys · May 2023
The aim of this work is to describe the implementation and commissioning of a plaque brachytherapy program using Eye Physics eye plaques and Plaque Simulator treatment planning system based on the experience of one institution with an established COMS-base ...
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Journal ArticleAdv Radiat Oncol · 2023
PURPOSE: Climate change is one of the direst health threats that humanity faces. We aim to estimate the carbon dioxide (CO2) emissions associated with the energy usage from linear accelerator (LINAC)-based external beam radiation therapy (EBRT) for the mos ...
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Journal ArticleAdv Radiat Oncol · 2023
PURPOSE: In this prospective trial, we aim to determine whether fluorodeoxyglucose positron emission tomography and computed tomography (PET/CT)-based adaptive radiation therapy (ART) improves dosimetry outcomes for patients treated with definitive radiati ...
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Journal ArticleTechnical Innovations and Patient Support in Radiation Oncology · December 1, 2022
Current medical physics graduate training in the United States seldom explicitly includes education on foundational skills necessary to produce Patient-Centered Care (PCC)-focused healthcare providers. Such abilities include effective communication, critic ...
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Journal ArticleJ Appl Clin Med Phys · May 2021
PURPOSE: The purpose of this study was to gauge the experiences of applicants and program directors (PDs) in the Medical Physics (MedPhys) Match (MPM) and to determine the most important characteristics and factors that influence decision-making for applic ...
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Journal ArticleFront Oncol · 2021
The purpose of this study was to assess baseline variability in histogram and texture features derived from apparent diffusion coefficient (ADC) maps from diffusion-weighted MRI (DW-MRI) examinations and to identify early treatment-induced changes to these ...
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Journal ArticleAdv Radiat Oncol · 2021
PURPOSE: To examine the effectiveness and safety of single-isocenter multitarget stereotactic radiosurgery using a volume-adapted dosing strategy in patients with 4 to 10 brain metastases. METHODS AND MATERIALS: Adult patients with 4 to 10 brain metastases ...
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Journal ArticleClin Transl Radiat Oncol · January 2019
BACKGROUND: In selected patients with early-stage and low-risk breast cancer, an MRI-linac based treatment might enable a radiosurgical, non-invasive alternative for current standard breast conserving therapy. AIM: To investigate whether single dose accele ...
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Journal ArticleOral Oncol · May 2018
OBJECTIVES: Head and neck radiotherapy (RT) is a risk factor for cerebrovascular disease. We performed a retrospective cohort study to evaluate carotid artery stenosis (CAS) incidence in head and neck cancer (HNC) patients undergoing RT, characterizing ass ...
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Journal ArticleClin Transl Radiat Oncol · October 2017
BACKGROUND: Following breast-conserving surgery and post-operative 3D-conformal accelerated partial breast irradiation (APBI), suboptimal cosmetic results have been reported. Preoperative radiation delivery to the intact tumor enables better target visuali ...
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Journal ArticleJ Appl Clin Med Phys · September 2017
PURPOSE: The purpose of this survey study is to investigate behaviors in conflict with the ethical standards of the Medical Physics Residency (MedPhys) Match (MPM) process as stated in the MPM rules (a) and with the nondiscrimination regulations of the Equ ...
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Journal ArticleMed Phys · May 2015
PURPOSE: To develop a framework for accurate electron Monte Carlo dose calculation. In this study, comprehensive validations of vendor provided electron beam phase space files for Varian TrueBeam Linacs against measurement data are presented. METHODS: In t ...
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Journal ArticleJ Appl Clin Med Phys · January 8, 2015
The purpose of this study was to evaluate the effect of dose calculation accuracy and the use of an intermediate dose calculation step during the optimization of intensity-modulated radiation therapy (IMRT) planning on the final plan quality for lung cance ...
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Journal ArticleMed Phys · January 2015
PURPOSE: An important challenge facing online adaptive radiation therapy is the development of feasible and efficient quality assurance (QA). This project aimed to validate the deliverability of online adapted plans and develop a proof-of-concept online de ...
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Journal ArticleNanoscale · May 21, 2014
Eu- and Li-doped yttrium oxide nanocrystals [Y2-xO3; Eux, Liy], in which Eu and Li dopant ion concentrations were systematically varied, were developed and characterized (TEM, XRD, Raman spectroscopic, UV-excited lifetime, and ICP-AES data) in order to def ...
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Journal ArticlePhys Med Biol · January 20, 2014
Compared to other radiation therapy modalities, clinical electron beam therapy has remained practically unchanged for the past few decades even though electron beams with multiple energies are widely available on most linacs. In this paper, we present the ...
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Journal ArticlePhys Med Biol · October 7, 2013
Volumetric modulated arc therapy (VMAT) is a relatively new treatment modality for dynamic photon radiation therapy. Pre-treatment quality assurance (QA) is necessary and many efforts have been made to apply electronic portal imaging device (EPID)-based IM ...
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ConferenceMed Phys · June 2013
PURPOSE: Volumetric modulated arc therapy (VMAT) is a relatively new treatment modality for dynamic photon radiation therapy. Pre-treatment quality assurance (QA) is necessary and many efforts have been taken to apply electronic portal imaging device (EPID ...
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ConferenceMed Phys · June 2013
PURPOSE: Lateral dimensions of the incident electron beam (spot sizes) are essential for accurate modelling of x-ray fields, especially for small field output factors and penumbrae. We present spot sizes measured on the Varian TrueBeam linac and propose an ...
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ConferenceMed Phys · June 2013
PURPOSE: Electron beam therapy is under-utilized in radiation treatment of cancer and has remained practically unchanged for decades. We propose a new technique, Dynamic Electron Arc Radiotherapy (DEAR) with synchronized couch motion. In DEAR, gantry rotat ...
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ConferenceMedical Physics · January 1, 2013
Purpose: Electron beam therapy is under‐utilized in radiation treatment of cancer and has remained practically unchanged for decades. We propose a new technique, Dynamic Electron Arc Radiotherapy (DEAR) with synchronized couch motion. DEAR utilizes modulat ...
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Journal ArticleMed Phys · June 2012
PURPOSE: To verify the accuracy of TG-61 based dosimetry with MOSFET technology using a tissue-equivalent mouse phantom. METHODS: Accuracy of mouse dose between a TG-61 based look-up table was verified with MOSFET technology. The look-up table followed a T ...
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Purpose: Effective communication is the cornerstone of patient-centered care. Early exposure to these skills allows for ample practice, which is ideal for their development. As medical physicists become more front-facing healthcare providers, the importanc ...
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