Zobrazeno 91 - 100
of 173
pro vyhledávání: '"Geoffrey, Zhang"'
Autor:
Thomas J. Dilling, Eduardo G. Moros, Hsiang-Hsuan Michael Yu, Craig Stevens, Sarah E. Hoffe, Vladimir Feygelman, Geoffrey Zhang
Publikováno v:
Journal of Nuclear Medicine & Radiation Therapy.
With the technologic advancements in image guidance and dose delivery, stereotactic body radiotherapy (SBRT) is being widely used for cancer treatment in various anatomical locations as a noninvasive alternative to surgery. To deliver ablative doses
Autor:
Ray R. Zhang, Geoffrey Zhang, Vladimir Feygelman, Weiqi Li, Eleanor E.R. Harris, Eduardo G. Moros
Publikováno v:
IFMBE Proceedings ISBN: 9783642293047
When Monte Carlo (MC) method is used for dose calculations on a patient CT dataset, the materials in the CT images are often assigned based on the local Houndsfield units if the density threshold method is applied. In bolus electron conformal therapy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc7a2f9858fd384b97113147ed6b96ed
https://doi.org/10.1007/978-3-642-29305-4_470
https://doi.org/10.1007/978-3-642-29305-4_470
Autor:
Sarah E. Hoffe, Kujtim Latifi, Wouter van Elmpt, Geoffrey Zhang, Thomas J. Dilling, Andre Dekker, Kenneth M. Forster
Publikováno v:
IFMBE Proceedings ISBN: 9783642293047
Ventilation imaging using 4D-CT is a convenient and cost effective functional imaging methodology which might be of value in radiotherapy treatment planning to spare functional lung volumes. To calculate ventilation imaging from 4DCT we must use defo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4815755b9489418cd069c65b29737ae
https://doi.org/10.1007/978-3-642-29305-4_459
https://doi.org/10.1007/978-3-642-29305-4_459
Autor:
S. Han, Dan Green, X. Zhong, A. Byon-Wagner, H.Z. Shi, Kurtis F Johnson, A. Para, L. Hu, G. Wang, Y. Tan, Geoffrey Zhang, L. Zhang, N. Liu, Y. Zhou, H. Mao, X. Zhao, C. Zhang, Virgil E Barnes, Z. Zhang, L. Zheng
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 365:337-351
The radiation hardness properties of a tile/fiber calorimeter with different materials or with different optical path layouts have been studied. Ten calorimeter modules of a geometry similar to that of the proposed SDC calorimeter were irradiated usi
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 361:192-196
A series of commercially available coumarins was tested as wavelength shifters in polystyrene for a tile/fiber calorimeter application. The objective was to find a compound that when incorporated in a polystyrene matrix absorbed in the 400–450 nm w
Publikováno v:
Medical Physics. 43:3427-3427
Purpose: To explore the effects of dose-volume (Dvh) and dose-mass (Dmh) inverse optimization approaches on the lung ventilation for SBRT in NSCLC. Methods: Six cases were studied. For each case ventilation was computed on voxel-by-voxel basis, deriv
Autor:
Dennis Stephen Mackin, R Guzman, Geoffrey Zhang, Eduardo G. Moros, J Oliver, Yoganand Balagurunathan, Dylan C. Hunt, Laurence E. Court, Robert J. Gillies, M Shafiq ul Hassan, K. Latifi
Publikováno v:
Medical Physics. 43:3705-3705
Purpose: To investigate the impact of reconstruction Field of View on Radiomics features in computed tomography (CT) using a texture phantom. Methods: A rectangular Credence Cartridge Radiomics (CCR) phantom, composed of 10 different cartridges, was
Autor:
K. Latifi, Mikalai M. Budzevich, Geoffrey Zhang, M Shafiq ul Hassan, Eduardo G. Moros, Robert J. Gillies, Dylan C. Hunt
Publikováno v:
Medical Physics. 43:3379-3379
Purpose: A simple approach to investigate Interscanner variability of Radiomics features in computed tomography (CT) using a standard ACR phantom. Methods: The standard ACR phantom was scanned on CT scanners from three different manufacturers. Scanni
Autor:
Cynthia L. Harris, Jessica M. Frakes, Joan Werner, Puja Venkat, Eduardo G. Moros, Geoffrey Zhang, Jason B. Klapman, J Oliver, Gautumy Chikiti Dhadham, Jaime Montilla-Soler, Sarah E. Hoffe, W. Jin, Karen Emanuel, Kujtim Latifi, Thomas J. Dilling
Publikováno v:
Journal of Clinical Oncology. 34:70-70
70 Background: Often in esophageal targets that move with respiration, endoscopically implanted fiducial markers are placed under ultrasound guidance within 1 cm from the superior and inferior tumor border. Our group has previously reported the stabi
Autor:
Benjamin E, Nelms, Daniel, Opp, Joshua, Robinson, Theresa K, Wolf, Geoffrey, Zhang, Eduardo, Moros, Vladimir, Feygelman
Publikováno v:
Medical physics. 39(7)
To develop and validate a volume-modulated arc therapy (VMAT) quality assurance (QA) tool that takes as input a time-resolved, low-density (∼10 mm) cylindrical surface dose map from a commercial helical diode array, and outputs a high density, volu