Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Edward T, Bender"'
Publikováno v:
Medical Physics. 43:2072-2080
Purpose: The purpose of this work is to examine the trade-off between prescription isodose and dose gradients in orthovoltage stereotactic radiosurgery. Methods: Point energy deposition kernels (EDKs) describing photon and electron transport were cal
Autor:
Andrew J, Shepard, Edward T, Bender
Publikováno v:
Journal of radiosurgery and SBRT. 4(3)
To develop a fundamentally new stereotactic radiosurgery (SRS) collimator design which utilizes initially off-axis Compton scattered photons to increase the dose rate at isocenter for small field treatments.The proposed design added a set of conical
Autor:
Jonathan D. Pagan, R. Adam Bayliss, Paul M. Harari, Heather M. Geye, Pranshu Mohindra, Edward T. Bender, Vatsal B. Patel, Erich Urban
Publikováno v:
Head & Neck. 38:499-505
Background We sought to validate the consensus recommendation and assess dosimetric significance of selective omission of nodal level V from intensity-modulated radiotherapy (IMRT) clinical target volume (CTV) for oropharyngeal cancer. Methods IMRT p
Publikováno v:
Australasian Physical & Engineering Sciences in Medicine. 37:321-326
It has previously been shown that deformable image registrations (DIRs) often result in deformation maps that are neither inverse-consistent nor transitive, and that the dose accumulation based on these deformation maps can be inconsistent if differe
Publikováno v:
Medical physics. 44(7)
Purpose To achieve stereotactic radiosurgery (SRS) dose distributions with sharp gradients using orthovoltage energy fluence modulation with inverse planning optimization techniques. Methods A pencil beam model was used to calculate dose distribution
Publikováno v:
Medical physics. 43(5)
The purpose of this work is to examine the trade-off between prescription isodose and dose gradients in orthovoltage stereotactic radiosurgery.Point energy deposition kernels (EDKs) describing photon and electron transport were calculated using Monte
Autor:
Edward T. Bender
Publikováno v:
Medical Physics. 39:7055-7061
Purpose: To derive a radiobiological model that enables the estimation of brain necrosis and spinal cord myelopathy rates for a variety of fractionation schemes, and to compare repair effects between brain and spinal cord. Methods: Sigmoidal dose res
Autor:
Edward T. Bender
Publikováno v:
Medical Physics. 39:2713-2720
Purpose: To develop a robust method for deriving dose-painting prescription functions using spatial information about the risk for disease recurrence. Methods: Spatial distributions of radiobiological model parameters are derived from distributions o
Publikováno v:
Medical Physics. 39:272-280
Purpose: Deformable image registration (DIR) is necessary for accurate dose accumulation between multiple radiotherapy image sets. DIR algorithms can suffer from inverse and transitivity inconsistencies. When using deformation vector fields (DVFs) th
Autor:
Edward T. Bender, Wolfgang A. Tomé
Publikováno v:
Physics in Medicine and Biology. 54:5561-5577
The aim of this study was to investigate the utility of consistency metrics, such as inverse consistency, in contour-based deformable registration error analysis. Four images were acquired of the same phantom that has experienced varying levels of de