Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"sonography"”.
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Information theoretic design of breast sonography
First-principle approaches to the design of medical ultrasonic imaging systems for specific visual tasks are being explored. Our study focuses on breast cancer diagnosis and is based on the ideal observer concept for visual discrimination tasks, whereby tasks based on five clinical features are …
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Advanced Array Imaging for Breast and Prostate Sonography
[Abstract from Thesis “Introduction.”] In conventional medical ultrasound such as B-mode imaging, the amplitude of the backscattered ultrasound pulse is used to image tissues along a fixed beam direction [1]. This imaging technique works best in static organs, and it is difficult to image moving …
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The benefits and challenges of employing new sonography graduates: Key stakeholder views
… of key stakeholders related to employing new sonography graduates. Method: Semi structured interviews were used and a total of thirteen participants interviewed. The data collected was analysed using a constructivist Grounded Theory approach and emerging theory tested. The qualitative approach …
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Effectiveness Of A Clinical Questioning Activity In Developing Cardiac Sonography Student Learning Levels
… QUESTIONING ACTIVITY IN DEVELOPING CARDIAC SONOGRAPHY STUDENT LEARNING LEVELS MAJOR PROFESSOR: Dr. Marcia Anderson, Ph.D. The purpose of the study was to contribute to a better understanding of learning activities used in clinical education. In particular, this study aimed to investigate …
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Transcranial Doppler sonography: a new noninvasive method for measuring toxicant-induced alterations in cerebral blood flow
… this experiment was to use transcranial Doppler sonography (TCD) in the dog to noninvasively measure changes in cerebral blood flow (CBF) resulting from a low-level exposure to the commonly used pyrethroid insecticide deltamethrin. Deltamethrin has previously been shown to increase CBF in rats as …
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Utilization of Musculoskeletal Sonography in Detecting Physiologic Changes of the Median Nerve in a Working Animal Model
… be investigated. Utilizing musculoskeletal (MSK) sonography, it is hypothesized that earlier, less afflictive physiologic changes to the median nerve can be visualized and quantified, with the goal of providing enough pathophysiologic information to aid in the diagnosis of CTS. By detecting the …
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Comparison of Magnetic Resonance Imaging & Sonography in an Animal Model in the Acute Stages of Carpal Tunnel Syndrome
… Criteria also lists musculoskeletal (MSK) sonography with a rating of one out of ten; however, qualities such as accessibility, cost effectiveness, being less invasive, relatively painless, time effectiveness, as well as providing real time imaging, may provide additional information in …
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Objective assessment of sonographic quality for breast cancer imaging
… and the practice of medicine. In medical sonography, however, these methods are not as advanced for at least two reasons. One reason is that ultrasound is a very low-risk and low unit-cost modality. Because there is no risk caused by ionizing radiation in ultrasound imaging , the …
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Descriptive analysis of the musculoskeletal case load referred for ultrasound imaging in an Auckland imaging practice : a case study
… referral request), and the associated sonography imaging report (radiologist endorsed sonography report letter). Information extracted from these sources included patient demographic characteristics, referrer characteristics, descriptive referral request, and imaging report information. …
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Ο ρόλος της Υπερηχο-υστεροσαλπιγγογραφίας με χρήση αφρού (ΗyFoSy) στη διερεύνηση της γυναικείας υπογονιμότητας / The role of Hysterosalpingo-foam sonography (ΗyFoSy) in the evaluation of female infertility
Εισαγωγή: Η υπογονιμότητα αποτελεί ένα πολυπαραγοντικό πρόβλημα υγείας με αυξανόμενη συχνότητα παγκοσμίως, συνδεόμενο με κοινωνικές, ψυχολογικές και οικονομικές επιπτώσεις. Η ακριβής και έγκαιρη διερεύνησή της είναι καθοριστικής σημασίας για την επιλογή της κατάλληλης θεραπευτικής στρατηγικής. Στο …
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A wearable Transcranial Doppler ultrasound phased array system
Transcranial Doppler (TCD) sonography is a specialized ultrasound technique that enables measurement of blood ow velocity from the basal intracerebral vessels. Use of TCD sonography is highly compelling as a diagnostic modality due to its safety in prolonged studies, high temporal resolution, and …
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Decision making and judgement in radiographic and sonographic practice : an investigation using decision analysis
… and judgements made in general radiography and sonography, while the later part focused on the decisions and judgements made by sonographers when breaking bad news to patients. The study is located in a broad interpretative framework, it used an adapted form of phenomenological methodology. A …
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Ρόλος της υστεροσκόπησης στη διερεύνηση της υπογονιμότητας συστηματική ανασκόπηση
… TVUS), υδροϋπερηχογραφία (Saline Infusion Sonography, SIS) και υστεροσαλπιγγογράφημα (Hysterosalpingogram, HSG). Η παρούσα συστηματική ανασκόπηση στοχεύει στην κριτική σύνθεση των τυχαιοποιημένων κλινικών δοκιμών που διερευνούν αν η υστεροσκόπηση (office ή υπό αναισθησία), με ή χωρίς άμεση …
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Intracranial hypertension in Kenyan children with cerebral malaria
… were monitored with transcranial Doppler (TCD) sonography. Three children with severe intracranial hypertension (maximum ICP > 60 mmHg and minimum cerebral perfusion pressure (CPP) < 40 mmHg) had a poor outcome despite aggressive therapy with mannitol. One child with a maximum ICP of 151 mmHg …
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Ergonomic evaluation of shoulder muscle activation during light weight hand tool exertion task
… it is relevant to the work in medical imaging sonography.
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An electronically steered, wearable transcranial doppler ultrasound system
… (CBFV) at the middle cerebral artery (MCA). TCD sonography has been clinically indicated in a variety of neurovascular diagnostic applications. Acceptance of conventional TCD methods, however, has been primarily impeded by several constraints, including restrictive system form factors, …
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Platelet Function in Dogs with Chronic Liver Disease
… volume measurements and focused assessment with sonography. An unpaired t-test was used for normally distributed data and the Mann-Whitney test was used when non-Gaussian distribution was present. The level of significance was set at P <0.05. Results: The CT was not different between the two …
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Effect of head elevation on intracranial blood flow velocity following acute ischemic stroke
… ischemic stroke. Transcranial Doppler (TCD) sonography mounted by head frame was used to measure MCA MFV. Patients were on average 59.5 years of age (SD = 15.4), with a mean National Institutes of Health Stroke Scale score of 11.95 (SD = 6.46) indicating moderate to severe stroke. On average, …
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