Search Results - "Chu, James C H"
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Compton scatter imaging: A promising modality for image guidance in lung stereotactic body radiation therapy
Published in Medical physics (Lancaster) (01-03-2018)“…Purpose Lung stereotactic body radiation therapy (SBRT) requires delivering large radiation doses with millimeter accuracy, making image guidance essential. An…”
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2
Characterization of Compton-scatter imaging with an analytical simulation method
Published in Physics in medicine & biology (11-01-2018)“…By collimating the photons scattered when a megavoltage therapy beam interacts with the patient, a Compton-scatter image may be formed without the delivery of…”
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3
Electronic intracavitary brachytherapy quality management based on risk analysis: The report of AAPM TG 182
Published in Medical physics (Lancaster) (01-04-2020)“…Purpose The purpose of this study was to provide guidance on quality management for electronic brachytherapy. Materials and Methods The task group used the…”
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4
Automated survey of 8000 plan checks at eight facilities
Published in Medical physics (Lancaster) (01-09-2016)“…Purpose: To identify policy and system related weaknesses in treatment planning and plan check work-flows. Methods: The authors’ web deployed plan check…”
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The sensitivity of ArcCHECK‐based gamma analysis to manufactured errors in helical tomotherapy radiation delivery
Published in Journal of applied clinical medical physics (01-01-2015)“…Three‐dimensional measurement arrays are an efficient means of acquiring a distribution of data for patient plan delivery QA. However, the tie between plan…”
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Dosimetric effects of saline- versus water-filled balloon applicators for IORT using the model S700 electronic brachytherapy source
Published in Brachytherapy (01-03-2018)“…The Xoft Axxent Electronic Brachytherapy System (Xoft, Inc., San Jose, CA) is a viable option for intraoperative radiation therapy (IORT) treatment of…”
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A simplified technique for delivering total body irradiation (TBI) with improved dose homogeneity
Published in Medical physics (Lancaster) (01-04-2012)“…Purpose: Total body irradiation (TBI) with megavoltage photon beams has been accepted as an important component of management for a number of hematologic…”
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8
Optimization for high-dose-rate brachytherapy of cervical cancer with adaptive simulated annealing and gradient descent
Published in Brachytherapy (01-07-2014)“…Abstract Purpose To validate an in-house optimization program that uses adaptive simulated annealing (ASA) and gradient descent (GD) algorithms and investigate…”
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9
Reporting small bowel dose in cervix cancer high-dose-rate brachytherapy
Published in Medical dosimetry : official journal of the American Association of Medical Dosimetrists (2016)“…Abstract Small bowel (SB) is an organ at risk (OAR) that may potentially develop toxicity after radiotherapy for cervix cancer. However, its dose from…”
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10
Biological Planning for High-Dose-Rate Brachytherapy: Application to Cervical Cancer Treatment
Published in Interfaces (Providence) (01-09-2013)“…Cervical cancer has a high mortality rate (approximately 35 percent) in the United States and is difficult to treat successfully. One promising treatment is…”
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Dosimetric characteristics of the Leipzig surface applicators used in the high dose rate brachy radiotherapy
Published in Medical physics (Lancaster) (01-12-2004)“…The nucletron Leipzig applicator is designed for (HDR) Ir 192 brachy radiotherapy of surface lesions. The dosimetric characteristics of this applicator were…”
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12
Dose perturbation induced by radiographic contrast inside brachytherapy balloon applicators
Published in Medical physics (Lancaster) (01-05-2004)“…Phantom measurements and Monte Carlo calculations have been performed for the purpose of characterizing the dose perturbation caused by radiographic contrast…”
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13
A dosimetric comparison of three-dimensional conformal, intensity-modulated radiation therapy, and MammoSite partial-breast irradiation
Published in Brachytherapy (01-07-2006)“…Limited information is available comparing target volume and normal tissue dosimetry with the different techniques of partial breast irradiation (PBI). We…”
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14
Detection of electron beam energy variations using a computed radiography system
Published in Journal of applied clinical medical physics (15-10-2009)“…A method to evaluate the electron beam energy constancy by employing the computed radiography (CR) system has been developed. In this method, a right…”
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15
Comparison of Computed Tomography Scout Based Reference Point Localization to Conventional Film and Axial Computed Tomography
Published in Medical dosimetry : official journal of the American Association of Medical Dosimetrists (2011)“…Abstract Identification of source positions after implantation is an important step in brachytherapy planning. Reconstruction is traditionally performed from…”
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16
Application of holographic display in radiotherapy treatment planning II: a multi‐institutional study
Published in Journal of applied clinical medical physics (28-05-2009)“…We hypothesized that use of a true 3D display providing easy visualization of patient anatomy and dose distribution would lead to the production of better…”
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17
Evaluation of Four Volume-Based Image Registration Algorithms
Published in Medical dosimetry : official journal of the American Association of Medical Dosimetrists (2009)“…Abstract We evaluated 4 volume-based automatic image registration algorithms from 2 commercially available treatment planning systems (Philips Syntegra and…”
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18
Design optimization of intraoperative radiotherapy cones
Published in International journal of radiation oncology, biology, physics (01-04-2003)“…Electron intraoperative cones (EIORCs) commonly used for intraoperative radiation therapy (IORT) often generate high-dose regions at superficial depths. This…”
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Effect of ethmoid sinus cavity on dose distribution at interface and how to correct for it: Magnetic field with photon beams
Published in Medical physics (Lancaster) (01-07-2003)“…Recent work proposed the use of magnetic field as a solution to reduce the undesirable effect of air cavities on dose after the air/tissue interface. In…”
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20
Dose enhancement by a thin foil of high-Z material: A Monte Carlo study
Published in Medical physics (Lancaster) (01-07-1999)“…The purpose of this work is to study the dose enhancement by a thin foil (thickness of 0.2–4 mm) of high-Z material in a water phantom, irradiated by…”
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