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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 341 to 350 of 378 (0.067 seconds)Spelling suggestions: "subject:"chealth ciences - radiology"" "subject:"chealth ciences - adiology""
| 341 |
Quantifying the impact of radiation therapy dose uncertainties on radiobiological treatment plan evaluationCranmer-Sargison, Gavin 09 November 2009 (has links)
The goal of this study was to quantify the impact of dose uncertainty on radio-biological treatment plan evaluation. A formalism was developed for assessing the impact of dose uncertainty on survival fraction (SF). To distinguish between spatial and probabilistic dose variations, we define equivalent stochastic dose (ESD) as the voxel dose that gives an expected survival fraction for the randomly deposited dose. In the case where the probabilistic voxel dose follows a Gaussian distribution, we de-rive an analytic expression for SF(ESD). We show the analytic expression can account for multi-voxel dose distributions that incorporate both probabilistic and spatial dose heterogeneities. In addition, we incorporate dose uncertainty in the calculation of tu¬mour control probability (TCP) using the ESD formalism. We verify the derivation and implementation of the derived expression using the Monte Carlo method for cases of 60 Gy and 70 Gy at 2 Gy per fraction. The results show that the derived formalism is an effective method for evaluating the radiobiological impact of dose uncertainties on treatment plan evaluation.
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| 342 |
A Monte Carlo approach to the validation of a pencil beam algorithm used in treatment planning for conformal beam radiosurgery with static fields /Bélec, Jason January 2004 (has links)
No description available.
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| 343 |
Development of techniques for optimization and verification of radiation treatmentsHristov, Dimitre H. January 1998 (has links)
No description available.
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| 344 |
Spiral irradiation in stereotactic radiosurgeryDubé, Frédéric, 1973- January 1999 (has links)
No description available.
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| 345 |
Volumetric rendering of medical data : applications to stereotactic neurosurgery planningCollins, Donald Louis January 1989 (has links)
No description available.
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| 346 |
Radiosensitization of a mouse tumor model (RIF-1) by Bromodeoxyuridine (BrdU) using biodegradable polymer implants as a controlled drug delivery systemDoiron, Annie. January 1997 (has links)
No description available.
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| 347 |
Monte Carlo analysis of scattered radiation in time-of-flight positron emission tomographyMuzic, Raymond Frank, Jr. January 1991 (has links)
No description available.
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| 348 |
Three-dimensional high-resolution magnetic resonance imaging of the coronary arteriesPaschal, Cynthia Bruce January 1992 (has links)
No description available.
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| 349 |
Assessment of Cervical Spine Morphology by Computed Tomography and its Utility as a Presurgical Planning ToolMartensen, Jan January 2004 (has links)
No description available.
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| 350 |
MR imaging biomarkers for benign prostatic hyperplasia pharmacotherapyJia, Guang 30 November 2006 (has links)
No description available.
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