Index Catalog // ScholarsArchive@OSU

Evaluation of Potential Interchangeability Between CBCT and Calypso® for Target Localization During Prostate RT

Creator:: Alexandrian, Ara
Abstract:: Introduction: In today's radiological quest to pacify and eliminate cancer, it has become conventional in cancer treatment facilities to implement advanced guidance or target localization systems with the goal of maximizing accuracy of radiation dose delivery to a tumor while simultaneously minimizing normal tissue complication. At the Oregon Health &...
Resource Type:: Masters Thesis
Full Text:: effectively straight to the point. Aside from being on my committee, Dr. Tack has been an academic advisor

Pre-clinical Investigation of MARS CT for use in Bone Quality Assessment

Creator:: Leary, Celeste I.
Abstract:: Bone strength and fracture resistivity are related to a variety of factors encompassed in what is referred to as bone quality. However, bone quality is not a well-defined concept; therefore individual fracture risk cannot be predicted accurately, and osteoporosis treatment monitoring remains di cult. Clinically available imaging modalities use bone...
Resource Type:: Masters Thesis
Full Text:: advisors, Tom Griglock and Krystina Tack, and my adopted advisor from the University of Otago Christchurch

Testing Continuity between Versions 5.3.9 and 6.3.1 of Plaque Simulator for Planning Eye Plaque Brachytherapy Cases

Creator:: Polsdofer, Elizabeth M.
Abstract:: The purpose of this study is to examine the challenges of accepting and commissioning a new treatment planning system for eye plaque brachytherapy. Currently Oregon Health and Science University (OHSU) utilizes v5.3.9 of the Plaque Simulator software to plan all of its eye plaque brachytherapy cases. However, v5.3.9 is no...
Resource Type:: Masters Thesis

Efficacy of Reusing NanoDot OSL Dosimeters Using Optical Bleaching

Creator:: Graeper, Gavin
Abstract:: Use of optically stimulated luminescence detectors (OSLDs) is rapidly increasing in the area of in vivo dosimetry. OSLDs are relatively new to the market compared to their main competitor, thermoluminescent detectors (TLDs). Currently, not all characteristics of OSLDs have been fully investigated. Landauer’s nanoDot OSLDs were used in conjunction with...
Resource Type:: Masters Thesis
Full Text:: throughout the last year. I would also like to thank Dr. Tack for the last minute employment support

Longitudinal Effects in GafChromic® Film

Creator:: Durham, Shannon
Abstract:: Radiochromic film dosimetry offers many advantages over standard film that requires wet chemical processing. Radiochromic film offers: a permanent color change upon irradiation; high spatial resolution; a response that is independent of energy, particle type, and angle of incidence; near tissue equivalence; and a wide dosimetric range. However, there are...
Resource Type:: Masters Thesis
Full Text:: me through all of the pitfalls along the way. I would also like to thank Dr. Krystina Tack for her

Precise lateral dose profile measurements of surface interfaces of hip prostheses

Creator:: Arnold, Alison
Abstract:: With the growing incidence of total hip replacements performed each year in the United States, the incidence of patients with prosthesis requiring radiotherapy is bound to increase. It is necessary to understand and quantify the effects of the high atomic number material prostheses used in total hip replacements on therapeutic...
Resource Type:: Masters Thesis
Full Text:: on such a unique project. I would also like to thank Dr. Krystina Tack for her guidance and

Biological remediation strategy for immobilizing Ag-110m and Cs-134 in soils

Creator:: Whitlow, Jesse Lynn
Abstract:: After contamination of soil in Japan due to the Fukushima Daiichi accident, there has been an increased interest in remediation of radiologically contaminated land. This study investigated the efficacy of a new biological remediation technology developed by Earthfort, an Oregon based company to hold radionuclides at the soil surface. Cesium-134...
Resource Type:: Masters Thesis
Full Text:: work on this project. I would also like to thank my committee members Dr. David Hamby, Dr. Krystina

Development of an accurate Monte Carlo treatment plan calculation framework for the purpose of developing dose calculation error predictors for a widely implemented clinical algorithm

Creator:: Egan, Alexander J.
Abstract:: Monte Carlo (MC) algorithms are widely accepted as the most accurate method to calculate dose in a patient geometry. For this work the EGSnrc MC code was used as a benchmark for the identification of dose calculation errors produced by the widely implemented analytical anisotropic algorithm (AAA). By correlating the...
Resource Type:: Dissertation
Full Text:: physics assistant. I would like to thank Dr. Krystina Tack for generously funding my research efforts

Extending the clinical applications of commercially available optically stimulated luminescence (OSL) dosimeters

Creator:: Keller, James R.
Abstract:: We present the results of our experiments designed to extend the clinical applications of commercially available Optically Stimulated Luminescence (OSL) Dosimeters. Our initial experiments demonstrate the linear response of the OSL dosimeters for doses under 200 cGy and the non-linear response of the device after 200 cGy. Our experiments show...
Resource Type:: Dissertation

Analysis of Carbon-14 Transport from a Contaminated Groundwater Source

Creator:: Napier, Jonathan Bamberger
Abstract:: Radioecology observes the movement of radioactive isotopes throughout the environment. For radioecology, locations of study are limited to areas accidentally contaminated from a number of sources. The Chalk River Laboratories of Atomic Energy of Canada Limited have stored low level waste since the mid 1940s. In certain instances, the wastes...
Resource Type:: Dissertation
Full Text:: . At Oregon State, my committee members, David Hamby, Krystina Tack, Lisa Madsen, and Shelley Su for

ScholarsArchive@OSU

Evaluation of Potential Interchangeability Between CBCT and Calypso® for Target Localization During Prostate RT

Pre-clinical Investigation of MARS CT for use in Bone Quality Assessment

Testing Continuity between Versions 5.3.9 and 6.3.1 of Plaque Simulator for Planning Eye Plaque Brachytherapy Cases

Efficacy of Reusing NanoDot OSL Dosimeters Using Optical Bleaching

Longitudinal Effects in GafChromic® Film

Precise lateral dose profile measurements of surface interfaces of hip prostheses

Biological remediation strategy for immobilizing Ag-110m and Cs-134 in soils

Development of an accurate Monte Carlo treatment plan calculation framework for the purpose of developing dose calculation error predictors for a widely implemented clinical algorithm

Extending the clinical applications of commercially available optically stimulated luminescence (OSL) dosimeters

Analysis of Carbon-14 Transport from a Contaminated Groundwater Source

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