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Dissertations / Theses on the topic 'Ultrasound diagnostics'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Starlander, Isak, and Simon Rydell. "Diagnostics of Ultrasound Resolution, Contrast & Safety." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-195803.

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As ultrasound is the most common method for medical imaging, a lot of money could be saved if the equipment were cheaper. A problem is that the cheaper available scanners are less documented. To evaluate a scanner bought for the institution of applied physics, three categories were pondered. The resolution, contrast and safety of the scanner was of most interest. In order to provide results several measurements were performed. Screws of different dimensions were used for evaluating the resolution, whereas different materials were observed for the contrast. A method to investigate safety was tr

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2

Rydell, Simon, and Isak Starlander. "Diagnostics of Ultrasound Resolution, Contrast & Safety." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-195826.

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As ultrasound is the most common method for medical imaging, a lot of money could be saved if the equipment were cheaper. A problem is that the cheaper available scanners are less documented. To evaluate a scanner bought for the institution of applied physics, three categories were pondered. The resolution, contrast and safety of the scanner was of most interest. In order to provide results several measurements were performed. Screws of different dimensions were used for evaluating the resolution, whereas different materials were observed for the contrast. A method to investigate safety was tr

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3

Lucas, Edward James. "Non-invasive online monitoring and diagnostics of flowing ice suspensions using ultrasound." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.720830.

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4

Podlipská, J. (Jana). "Non-invasive semi-quantitative and quantitative ultrasound imaging for diagnostics of knee osteoarthritis." Doctoral thesis, Oulun yliopisto, 2016. http://urn.fi/urn:isbn:9789526214351.

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Abstract Osteoarthritis (OA) is a common degenerative disease of synovial joints becoming more frequent with age. Pain, stiffness and functional disability caused by OA negatively affect the quality of individuals’ lives. In order to prevent the manifestation of symptoms and further OA progress, early diagnosis is essential. Ultrasonography has the potential to detect various abnormalities in the knee joint, however its place in clinical practice remains uncertain. The present study aimed to determine the diagnostic performance of the semi-quantitative wide-area ultrasound (US) scanning of kne

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5

Bauer, Daniel Ryan. "Thermoacoustic Imaging and Spectroscopy for Enhanced Cancer Diagnostics." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/265375.

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Early detection of cancer is paramount for improved patient survival. This dissertation presents work developing imaging techniques to improve cancer diagnostics and detection utilizing light and microwave induced thermoacoustic imaging. In the second chapter, the well-established pre-clinical mouse window chamber model is interfaced with simultaneously acquired high-resolution pulse echo (PE) ultrasound and photoacoustic (PA) imaging. Co-registered PE and PA imaging, coupled with developed image segmentation algorithms, are used to quantitatively track and monitor the size, shape, heterogenei

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6

Čížek, Martin. "Analýza nelineárních jevů v ultrazvukové diagnostice." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-233495.

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The model study of nonlinear effects in the ultrasound diagnostics is focused on developing and experimental verification of new computer algorithms for numerical modeling of the ultrasound field including nonlinear effects accompanying the ultrasound propagation in biological tissues. A theoretical analysis of nonlinearities in ultrasound propagation and their contribution to thermal and mechanical effects of diagnostic ultrasound applications was conducted. A numeric model of ultrasound propagating through a tissue model formed of a set of homogenous layers with defined physical parameters w

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7

Sinha, Roy Abhijit. "Improved Diagnostics of Coronary Stenoses with Lesion Flow Coefficient Using Guidewires." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1175746191.

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8

Dhutia, Niti Mahesh. "Image processing elements for an operator guidance system using multimodality cardiac ultrasound to improve quantitative diagnostics." Thesis, Imperial College London, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.544252.

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9

Cash, Hannes [Verfasser]. "Implications of MRI/ultrasound fusion guided targeted biopsies on the diagnostics of prostate cancer / Hannes Cash." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2018. http://d-nb.info/1150238011/34.

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10

Школьна, Ірина Іванівна, Ирина Ивановна Школьная, Iryna Ivanivna Shkolna та Д. В. Ганін. "Особливості перебігу вагітності у жінок, що народили здорових новонароджених". Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/48159.

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Під клінічним спостереженням знаходилось 33 новонароджених та їх матерів. Середній вік матерів склав 27,3±0,89 років. Вищу освіту мали 21 жінка (63,6%), середню – 12 (36,4%). Близько 97 % породіль перебували у шлюбі. Під час вагітності 66,7% жінок та 60,1% їх чоловіків були працевлаштовані.

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11

Skerl, Katrin. "Standardisation and quality assurance of 2D ultrasound Shear Wave Elastography imaging in breast tissue." Thesis, University of Dundee, 2016. https://discovery.dundee.ac.uk/en/studentTheses/5ee2b3ed-89aa-4874-830a-ec9be233aae4.

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Breast cancer is the most common cancer in women worldwide. In 2009, a novel imaging modality called Shear Wave Elastography (SWE), an ultrasound technique visualising the elasticity of tissue, was introduced to the field of clinical breast imaging. Because malignant tissues are generally stiffer than benign tissues, SWE supports the differentiation of benign / malignant solid breast lesions. However, no standard has yet been defined for the application and the evaluation of results. Furthermore, image evaluation has to be carried out directly from the ultrasound system, complicating long-term

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12

Лекішвілі, Софія Егнатівна, Альона Олександрівна Потапова, Алена Александровна Потапова, Alyona Oleksandrivna Potapova, София Эгнатьевна Лекишвили та Sofiia Ehnativna Lekishvili. "Ультразвуковая диагностика и ее ценность при заболевании глазного яблока". Thesis, Издательство СумГУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/27303.

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13

Lama, Lara. "Novel methods for improving rapid paper-based protein assays with gold nanoparticle detection." Licentiate thesis, KTH, Proteomik och nanobioteknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-214065.

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This thesis describes methods for improving sensitivity in rapid singleplex and multiplex microarray assays. The assays utilize the optical characteristics of colloidal gold nanoparticles for the colorimetric detection of proteins. Multiplexed detection in sandwich immunoassays is limited by cross-reactivity between different detection antibodies. The cross-reactivity between antibodies can contribute to increased background noise - decreasing the Limit-of-Detection of the assay - or generate false positive signals. Paper I shows improved assay sensitivity in a multiplexed vertical flow assay

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14

Koegelenberg, Coenraad Frederik Nicolaas. "Ultrasound-assisted transthoracic diagnostic techniques." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/18054.

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Thesis (PhD)--University of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: Although transthoracic ultrasonography is a well established modality, it is still underutilised by chest physicians. The aim of this research project was to investigate the feasibility, diagnostic yield and safety of ultrasound(US)-assisted transthoracic biopsies performed by clinicians in various settings relevant to daily practice of respiratory medicine. We conducted four clinical trials which are summarised below: 1. In a prospective study on the feasibility of US-assisted transthoracic fine needle aspiration (TTFN

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15

Skehan, Daniel Patrick. "Virtual Training System for Diagnostic Ultrasound." Digital WPI, 2011. https://digitalcommons.wpi.edu/etd-theses/1068.

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"Ultrasound has become a widely used form of medical imaging because it is low-cost, safe, and portable. However, it is heavily dependent on the skill of the operator to capture quality images and properly detect abnormalities. Training is a key component of ultrasound, but the limited availability of training courses and programs presents a signiﬁcant obstacle to the wider use of ultrasound systems. The goal of this work was to design and implement an interactive training system to help train and evaluate sonographers. This Virtual Training System for Diagnostic Ultrasound is an inexpensive,

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16

Tant, Sylvain. "Contribution au diagnostic d'empilements PEMFC par spectroscopie d'impédance électrochimique et méthodes acoustiques." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00934703.

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Les piles à combustible constituent une alternative aux moteurs thermiques utilisés dans le cadre d'applications transport ou dans le cadre d'applications stationnaires. Cependant, il existe encore aujourd'hui des verrous technologiques limitant leur développement à l'échelle industrielle. Un des verrous importants est la détermination de leur état de santé en temps réel permettant un diagnostic voire un pronostic de leurs dysfonctionnements ou de leur temps de bon fonctionnement. Dans ce travail, deux approches différentes ont été abordées en vue de proposer des outils de diagnostic pour des

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17

Pitt, Timothy James. "Volumetric ultrasound system- design and testing." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298369.

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18

Hightower, C. Makena. "Continuous diagnostic frequency ultrasound and the microcirculation." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3258351.

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Thesis (Ph. D.)--University of California, San Diego, 2007.<br>Title from first page of PDF file (viewed May 29 , 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 79-86).

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19

Doody, Claire. "Heating of fetal bone by diagnostic ultrasound." Thesis, University of Bath, 1998. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266460.

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20

Managuli, Ravi A. "Programmable ultrasound color flow system /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/6064.

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21

Basoglu, Chris. "A generalized programmable system and efficient algorithms for ultrasound backend processing /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/5978.

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22

Anhalt, Dennis Paul 1960. "MODIFICATION OF A DIAGNOSTIC ULTRASOUND UNIT'S MOVEMENT SYSTEM TO PERFORM SCANNING DURING FOCUSSED, ULTRASOUND HYPERTHERMIA." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/275546.

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23

Bae, Unmin. "Ultrasound elastography : method and clinical application /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/6025.

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24

Ruston, Sally A. "Movements of the cervical spine observed by diagnostic ultrasound." Thesis, University of Strathclyde, 1988. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21326.

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An investigation was undertaken to ascertain if standard diagnostic ultrasound equipment was capable of imaging the cervical spine and observing intersegmental motion. Cervical spine anatomy was reviewed with particular attention paid to the location and structure of the ligaments, fascia and articular structures of the region. A real-time B-scanner and 5MHz probe was selected for the project. Using a model spine within a waterbath, experience in image collection and interpretation was gained. The axial and lateral resolution of the scanner was tested. The ability of the scanner to measure a k

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25

Friar, John. "Technology strategy : the case of the diagnostic ultrasound industry." Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/97290.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, 1987.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND DEWEY.<br>Bibliography: leaves 182-192.<br>by John H. Friar III.<br>Ph.D.

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26

Abel, Mark Joshua. "Novel therapeutic and diagnostic ultrasound techniques in cancer management." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/47909.

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Introduction: The aim of this thesis is to assess novel therapeutic and diagnostic ultrasound techniques in cancer management. A drive to improve prognosis in cancer patients has resulted in a vast array of recent medical advances and new approaches using ultrasound technology may enhance outcome in patients with a diagnosis of malignancy. Methods: A new 256 element random phased-array high intensity focused ultrasound (HIFU) device was designed, developed and tested for use in treating hepatic tumours. An existing intra-cavitary HIFU transducer (Sonablate 500®) currently under investigation f

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27

Zheng, Xing. "Ultrasound image processing and transmission for medical diagnosis /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?COMP%202003%20ZHENGX.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003.<br>Includes bibliographical references (leaves 66-69). Also available in electronic version. Access restricted to campus users.

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28

Zeng, Xiaozheng. "Ultrasound phased array simulations for hyperthermia." Diss., Connect to online resource - MSU authorized users, 2008.

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29

Gomersall, William Henry. "Deconvolution of three-dimensional medical ultrasound." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609431.

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30

Shannon, Russell A. "Ultrasound to assess lipid content in salmon muscle." Thesis, University of Oxford, 2002. http://ora.ox.ac.uk/objects/uuid:fbbd2a50-ac06-4740-9a11-119efe5e7d5f.

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In this thesis, ultrasound pulse transit time measurement techniques are applied to aquaculture, specifically to measure the intramuscular fat in salmon muscle tissue. The main advantages of this technique are that it is noninvasive and that it uses low-cost components. Fat in salmon muscle exists as oil dispersed throughout the tissue. Therefore, a phantom was built to empirically model a dispersed fat system. The phantom was a mixture of low-fat milk and high-fat double cream. By varying the quantities of each component, the fat level of the phantom could be controlled. A trend of increasing

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31

York, George W. P. "Architecture and algorithms for a fully programmable ultrasound system /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/5931.

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32

Leung, Kwok-yin, та 梁國賢. "Prenatal ultrasound prediction of homozygous α⁰-thalassemia". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B47454039.

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Homozygous α0-thalassemia is a serious autosomal recessive disorder with poor fetal outcome and severe maternal complications. Conventionally, prenatal diagnosis is performed by an invasive test. A non-invasive approach using serial ultrasonography can effectively reduce the need for invasive tests in unaffected pregnancies. For two-dimensional ultrasound prediction, a total of 777 at-risk fetuses were studied from 12 to 20 weeks between 1995 and 2006. At 12–15 weeks’ gestation, the highest sensitivity (98.3%) was achieved by the combination of fetal cardiothoracic ratio (CTR) and/o

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33

Starritt, Hazel Catherine. "Streaming induced by high amplitude acoustic pulses and its implications." Thesis, University of Bath, 1990. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278251.

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34

Zdero, Radovan. "A new diagnostic ultrasound technique for studying TKR contact mechanics." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0001/NQ42992.pdf.

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35

Chin, Chien Ting. "Modelling the behaviour of microbubble contrast agents for diagnostic ultrasound." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ59006.pdf.

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36

Heggie, Glen David. "Voluntary participation in accreditation by diagnostic ultrasound programs in Canada." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0010/NQ59919.pdf.

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37

Mjølstad, Ole Christian. "Pocket-size ultrasound, a new diagnostic tool in clinical practice." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for sirkulasjon og bildediagnostikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23713.

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38

Chung, Daniel Yiu Fai. "Quantitative assessment of tumour response to therapy by diagnostic ultrasound." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:421aedfa-aa50-4329-a84f-de07e0f4996c.

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Chemotherapy forms the mainstay of treatment for patients with liver tumours, which has a number of significant side effects. Treatment response is often assessed some time after commencement of treatment. A quantitative method to detect early liver tumour response to chemotherapy would be beneficial to facilitate termination of ineffective treatment and to minimise unnecessary side effects. This thesis investigated firstly whether fractal analysis of contrast enhanced computed tomography (ceCT) images of colorectal liver metastases could be used to detect early response to chemotherapy. Secon

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39

Hernandez, Christopher. "Stabilized Nanobubbles for Diagnostic Applications." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1521123706295258.

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40

Patel, Maya Nathu. "The role of abdominal ultrasound in the investigation of suspected extrapulmonary and disseminated tuberculosis." Master's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/2850.

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Includes bibliographical references (leaves 44-48).<br>The primary objective was to undertake a prospective study in order to determine whether abdominal lymphadenopathy detected at ultrasound examination could be used as an indicator of the presence of active extrapulmonary and/or disseminated TB.

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41

Neethling-Du, Toit Merle. "Ultrasound features of the deep infrapatellar Bursa." Thesis, Cape Peninsula University of Technology, 2006. http://hdl.handle.net/20.500.11838/2584.

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Thesis (MTech (Radiography))--Cape Peninsula University of Technology, 2006.<br>The knee is one of the most complicated joints in the body. The deep infrapatellar bursa being only a small water-pocket and forming a small part of the knee. The deep infrapatellar bursa can get inflamed and cause great discomfort, especially to professional sportsmen and -women. If such a inflammation is present, a common treament option are to inject a cortisone solution into the bursa for quick relieve and healing. This study was performed to investigate the specific ultrasound features of a normal de

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42

Krüger, Hagen Else. "Contrast enhanced transrectal ultrasound of the prostate : an experimental and clinical study /." Uppsala, 2001. http://publications.uu.se/theses/91-628-4793-7/.

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43

Mayani, Archana. "Development of a routine objective quality control program for diagnostic ultrasound." [Gainesville, Fla.]: University of Florida, 2002. http://purl.fcla.edu/fcla/etd/UFE0000572.

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44

Tabassian, Mahdi <1984&gt. "Developing Ultrasound-Based Computer-Aided Diagnostic Systems Through Statistical Pattern Recognition." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7635/4/Tabassian_Mahdi_PhDThesis_v01.pdf.

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Computer-aided diagnosis (CAD) is the use of a computer software to help physicians having a better interpretation of medical images. CAD systems can be viewed as pattern recognition algorithms that identify suspicious signs on a medical image and complement physicians' judgments, by reducing inter-/intra-observer variability and subjectivity. The proposed CAD systems in this thesis have been designed based on the statistical approach to pattern recognition as the most successfully used technique in practice. The main focus of this thesis has been on designing (new) feature extraction and

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45

Tabassian, Mahdi <1984&gt. "Developing Ultrasound-Based Computer-Aided Diagnostic Systems Through Statistical Pattern Recognition." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7635/.

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Computer-aided diagnosis (CAD) is the use of a computer software to help physicians having a better interpretation of medical images. CAD systems can be viewed as pattern recognition algorithms that identify suspicious signs on a medical image and complement physicians' judgments, by reducing inter-/intra-observer variability and subjectivity. The proposed CAD systems in this thesis have been designed based on the statistical approach to pattern recognition as the most successfully used technique in practice. The main focus of this thesis has been on designing (new) feature extraction and

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46

Cantlay, Nicholas. "Sonographers' experiences of breaking bad news in prenatal ultrasound : a phenomenological analysis." Thesis, Lancaster University, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.654968.

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47

Yeung, Tin-wai. "Use of three-dimensional ultrasound in the prediction of homozygous alpha0-thalassemia." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B41290616.

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48

Amini, Hashem. "Fetal Anomalies Surveillance and Diagnostic Accuracy of Ultrasound and Magnetic Resonance Imaging /." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-121503.

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49

Gilbertson, Matthew Wright. "Electromechanical systems to enhance the usability and diagnostic capabilities of ultrasound imaging." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/96459.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 283-293).<br>Ultrasound is used extensively in medicine to non-invasively examine soft tissues. Compared to computed-tomography (CT) scanning or X-ray imaging, ultrasound is lower-cost, more portable, real time, and subjects neither the caregiver nor the patient to potentially harmful ionizing radiation, which makes it the imaging modality of choice for many medical applications. Common uses include fetal, vasc

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50

Safinowski, Pawel. "Diagnostic ultrasonore de la dégradation mécanique et structurale du béton." Phd thesis, Ecole Centrale de Lille, 2011. http://tel.archives-ouvertes.fr/tel-00664281.

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Le travail présenté dans ce mémoire concerne le développement d'outils pour le diagnostic non-destructif et sans contact de l'état (dégradation) des matériaux de construction, principalement du béton. La thèse est focalisée sur deux techniques d'évaluation utilisant la propagation des ondes ultra-sonores : l'étude de la propagation des ondes de surface et l'analyse des coefficients de réflexion en fonction de l'angle d'incidence (réflectométrie). La partie théorique du travail présente les bases de la modélisation des phénomènes considérés, ainsi que la mise en oeuvre des modèles décrits dans

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