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  • About
  • 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.
21

Médecine futur antérieur ou les perspectives d'avenir inspirées par deux grandes découvertes scientifiques du XIXe siècle : la théorie microbienne et les rayons X /

Balcerowiak, Stéphane, January 1900 (has links)
Thesis (doctoral)--Université de Reims, 2003. / Title from Summary page ; description based on resource as of 2005-06-17. Includes bibliographical references and index.
22

Linac head scatter factor for asymmetric radiation field.

Soubra, Mazen Ahmed, January 1997 (has links)
Thesis (Ph. D.)--Carleton University, 1997. / Also available in electronic format on the Internet.
23

The root causes of errant ordered radiology exams /

Duman, Benjamin. January 2009 (has links)
Thesis (M.S.)--Boise State University, 2009. / Includes abstract. Includes bibliographical references (leaves 66-68).
24

The root causes of errant ordered radiology exams

Duman, Benjamin. January 2009 (has links)
Thesis (M.S.)--Boise State University, 2009. / Title from t.p. of PDF file (viewed April 28, 2010). Includes abstract. Includes bibliographical references (leaves 66-68).
25

Determination of effective dose and entrance skin dose from dose area product values for barium studies in adult patients at a large tertiary hospital in the Western Cape

Peters, Nazlea Behardien January 2017 (has links)
Thesis (MSc (Radiography))--Cape Peninsula University of Technology, 2018. / Background and objectives The issue of patient doses received during fluoroscopy procedures, raised concerns for the researcher, as there may have been probable past skin injuries or deterministic injuries that may not have been documented. Amongst the radiology staff, there was very little understanding of what the actual dose area product (DAP) value means in real terms of effective dose and entrance skin dose. The aims of the study were to: i) Measure the radiation doses received by the patient and determine a simple means of defining the DAP value to the radiographer in terms of the dose received by the patient. ii) Determine the effective dose, entrance skin dose and the relationship with the DAP value to assist with developing a conversion co-efficient for dose indicators. Method Direct radiation dose measurements can be obtained through DAP meters attached to the diagnostic equipment, but the DAP value is not an direct indication of the effective dose received by the patient. The DAP values captured from the DICOM header information for barium fluoroscopic procedures at a large tertiary was analysed and Diagnostic Reference levels (DRL) were determined for barium swallow, meal and enema procedures. The effective and skin doses were calculated by means of the Monte Carlo program. The results were compared to published values. The relationship between the entrance skin dose and the DAP value was determined and conversion factors were calculated. Results Correlation between the DAP and entrance skin dose and comparative 75th percentile threshold values were determined for barium swallow (BaS), barium meal (BaM) and barium enema (BaE) procedures. Effective to DAP conversation factors for BaS, BaM and BaE are 0.19, 0.26 and 0.60 respectively and 0.15, 0.11 and 0.14 for entrance skin to DAP. Conclusion The the research showed the relationship between the effective dose, entrance skin dose and DAP value and a simple, practical and applicable explanation of the DAP value by means of conversion factors.
26

A model to support radiographic equipment allocation decisions by government /

Hosios, Arthur Jacob. January 1975 (has links)
No description available.
27

A model to support radiographic equipment allocation decisions by government /

Hosios, Arthur Jacob. January 1975 (has links)
No description available.
28

Purpose and identity in professional and student radiology writing : a genre based approach

Goodier, Caroline Margaret Mary 11 1900 (has links)
This thesis examines the way in which purpose and identity are realised in the written case reports of radiography students in comparison with those of professional writers. Students entering a new discourse community have to take on a new social identity and this identity is expressed by means of familiarity with the appropriate discourse conventions, including genre as the most overt expression of rhetorical purpose. Also important are the pragmatic choices used by writers to guide readers’ understanding of text and to construct interaction between them, i.e. metadiscourse, which here provides an additional and complementary way of viewing purpose and identity. The study aims, at a more theoretical level, to make a contribution to writing research by integrating genre analysis and metadiscourse analysis within a single framework to provide new insight into the resources available to writers to construe identity in text. At a descriptive level, it provides analyses of a hitherto neglected genre of medical writing. Because the study compares the writing of novices and professionals, the description of this genre makes findings available for pedagogical application. Radiographers and radiologists work as members of the same professional teams and both publish case reports, often in the same journals. Data for the study is provided by two corpora of reports, one produced by radiography students and the other published in national journals by professionals. The genre analysis establishes the move structure of the radiological case study for both corpora and a cross-corpus analysis of metadiscourse demonstrates how identity is realised in the text as the moves unfold. Both quantitative and qualitative approaches are adopted with regard to the data. The student reports appear to be examples of a sub-genre of case reports with the move structure and metadiscoursal strategies differing in several significant ways, reflecting the different purposes and identities of the writers. Student writers are found not to be concerned with the more persuasive rhetorical functions of the genre and tend to align themselves with the viewpoint of the patient rather than the medical profession, drawing on school essay discourse and making use of metadiscoursal strategies associated with textbooks. / Linguistics / D.Litt. et Phil. (Linguistics)
29

DESIGN OF REVIEW CONSOLE FOR RADIOLOGY APPLICATIONS (DISPLAY, PACS)

Fisher, Henry Donald, 1943- January 1986 (has links)
No description available.
30

Intensity-modulated radiation therapy dose maps the matchline effect /

Tangboonduangjit, Puangpen. January 2006 (has links)
Thesis (Ph.D.)--University of Wollongong, 2006. / Typescript. Includes bibliographical references: p. 161-174.

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