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A clinical audit of mammography screening簡適悠, Kan, Sik-yau, Anita. January 2008 (has links)
published_or_final_version / Community Medicine / Master / Master of Public Health
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A practical technique for generation of diagnostic x-ray beam spectra to study means of dose reductionFenn, Jimmy O'Neil 05 1900 (has links)
No description available.
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Mammographic x-ray unit peak kilovoltage and spectral quality determination using film densitometryNapolitano, Mary Elizabeth 05 1900 (has links)
No description available.
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Model-based analysis of mammogramsCerneaz, Nicholas J. January 1994 (has links)
Metastasised breast cancer kills. There is no known cure, there are no known preventative measures, there are no drugs available with proven capacity to abate its effects. Early identification and excision of a malignancy prior to metastasis is the only method currently available for reducing the mortality due to breast disease. Automated analysis of mammograms has been proposed as a tool to aid radiologists detect breast disease earlier and with greater efficiency and success. This thesis addresses some of the major difficulties associated with the automated analysis of mammograms, in particular the difficulties caused by the high-frequency, relatively insignificant curvi-linear structures (CLS) comprising the blood vessels, milk-ducts and fibrous tissues. Previous attempts at automation have been overlooked these structures and the resultant complexity of that oversight has been handled inappropriately. We develop a model-based analysis of the CLS features, from the very anatomy of the breast, through mammography and digitisation to the image intensities. The model immediately dictates an algorithm for extracting a high-level feature description of the CLS features. This high-level feature description allows a systematic treatment of these image features prior to searching for instances of breast disease. We demonstrate a procedure for implementing such prior treatment by 'removing' the CLS features from the images. Furthermore, we develop a model of the expected appearance of mammographic densities in the CLS-removed image, which leads directly to an algorithm for their identification. Unfortunately the model also extracts many regions of the image that are not significant mammographic densities, and this therefore requires a subsequent segmentation stage. Unlike previous attempts which apply neural networks to this task, and therefore incorporate inherent insignificance as a consequence of insufficient data availability describing the significant mammographic densities, we illustrate the application of a new statistical method (novelty analysis) for achieving a statistically significant segmentation of the mammographic densities from the plethora of candidates identified at the previous stage. We demonstrate the ability of the CLS feature description to identify instances of radial-scar in mammograms, and note the suitability of the CLS and density descriptions for assessment of bilateral and temporal asymmetry. Some additional potential applications of these feature descriptions in arenas other than mammogram analysis are also noted.
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Registration of time-sequences of random textures with application to mammogram follow-up /Vujovic, Nenad, January 1997 (has links)
Thesis (Ph. D.)--Lehigh University, 1997. / Includes vita. Includes bibliographical references (leaves 152-171).
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Detection of masses in x-ray mammograms /Khan, Fyzodeen. January 2003 (has links)
Thesis (Ph. D.)--University of Rhode Island, 2003. / Typescript. Includes bibliographical references (leaves 100-103).
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A computer-based cascaded modeling and experimental approach to the physical characterization of a clinical full-field mammography systemVed, Hetal R. January 2002 (has links)
Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: linear cascade model; screen-film; mammography. Includes bibliographical references (p. 64-71).
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Expert Problem Solving in Mammogram Interpretation: A Visual Cognitive TaskAzevedo, Roger January 1997 (has links)
No description available.
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The measurement of modesty among Jewish American women /Andrews, Caryn. January 2004 (has links)
Thesis (Ph. D.)--University of Maryland, Baltimore, 2004. / Includes bibliographical references (p. 225-241). Also available on the Internet.
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Adaptive histogram equalization for mammographic image processingYakoubian, Jeffrey Scott 05 1900 (has links)
No description available.
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