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An evaluation of transvaginal ultrasound in the assessment of endometrial thickness in black South African patients presenting with postmenopausal uterine bleedingMoodley, Premla January 2004 (has links)
Dissertation submitted in full compliance with the requirements for the Master's degree in Technology: Radiography, Durban Institute of Technology, Durban, 2004. / The object of this study was to use Transvaginal ultrasound to evaluate the thickness of the endometrium to exclude endometrial abnormality in Black South African women with postmenopausal uterine bleeding. Transvaginal ultrasound is an excellent diagnostic method for assessing endometrial pathology. The study was carried out at the Gynaecological Ultrasound Department, King Edward VIII Hospital. The study included 76 Black women with postmenopausal uterine bleeding. The thickness of the endometrium was measured by Transvaginal ultrasound. The measurement included both endometrial layers (double-layer technique). The Transvaginal ultrasound measurement was compared with the histopathological diagnosis of the biopsy specimens. At the end of the investigation, findings obtained were 3.9% non-representative, 44.8% endometrial adenocarcinomas, 14.5% benign polyp, 3.9% chronic Endometritis, 17.1% benign endometrium, 5.3% endometrial hyperplasia, 9.2% atrophic endometrium, 3.9% myometrial invasion and 1.3% Malignant Mixed Mullerian Tumour. In this study, the thickness of the endometrial echo varied from 5mm to 35mm, with a mean of 18,2mm. When the thickness of the endometrial echo was compared with the histopathological results, the mean value for non-representative was 7.83mm, much lower than the thickness of an active endometrium (13.25mm). In cases with atrophic endometrium, the thickness ranged from 6mm to 30mm with a mean of 15.86mm. The mean value obtained for cases with endometrial adenocarcinoma was 20.32mm (range 11 to 35mm). The sensitivity, specificity and accuracy of Transvaginal ultrasound for detecting endometrial malignancy were 100% if the cutoff limit of 4mm was used
In conclusion, this study using Transvaginal ultrasound demonstrated that a thickness limit greater than 8mm was considered in detecting malignancy. No malignant endometrium was thinner than 5mm. Therefore in women with postmenopausal uterine bleeding and an endometrium less than 4mm, it may be justified not to perform further investigations. Transvaginal ultrasound is a simple,
well-tolerated safe and reliable method for identifying endometrial thickness in postmenopausal Black South African women. / M
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Architecture and algorithms for a fully programmable ultrasound system /York, George W. P. January 1999 (has links)
Thesis (Ph. D.)--University of Washington, 1999. / Vita. Includes bibliographical references (leaves 110-118).
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A generalized programmable system and efficient algorithms for ultrasound backend processing /Basoglu, Chris. January 1997 (has links)
Thesis (Ph. D.)--University of Washington, 1997. / Vita. Includes bibliographical references (leaves [273]-288).
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Use of three-dimensional ultrasound in the prediction of homozygous alpha0-thalassemiaYeung, Tin-wai. January 2008 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2008. / Includes bibliographical references (leaf 57-70) Also available in print.
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Numerical methods for nonlinear wave propagation in ultrasoundPinton, Gianmarco F. January 2007 (has links)
Thesis (Ph. D.)--Duke University, 2007. / Includes bibliographical references.
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Programmable ultrasound color flow system /Managuli, Ravi A. January 2000 (has links)
Thesis (Ph. D.)--University of Washington, 2000. / Vita. Includes bibliographical references (leaves 98-104).
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What do they want to know : expectant mothers' perspectives on informed decision-making & prenatal testing /Glasner, Malka. January 2008 (has links)
Thesis (M.Ed.)--York University, 2008. Graduate Programme in Education. / Typescript. Includes bibliographical references (leaves 94-103). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:MR38776
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Design, development and characterization of wideband polymer ultrasonic probes for medical ultrasound applications /Devaraju, Vadivel. Lewin, Peter A. January 2003 (has links)
Thesis (Ph. D.)--Drexel University, 2003. / Includes abstract and vita. Includes bibliographical references (leaves 140-146).
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Design and development of a programmable micro-ultrasound research platform with parallel computing capacityChiu, Chi-tat., 趙志達. January 2010 (has links)
published_or_final_version / Electrical and Electronic Engineering / Master / Master of Philosophy
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Development of a field-deployable voice-controlled ultrasound scanner systemSebastian, Dalys. January 2004 (has links)
Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: field use; ultrasound scanner; speech recognition; wearable. Includes bibliographical references (p. 165-166).
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