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Showing 1 to 14 of 14 for “"Ultrasound elastography"”.
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Shear wave ultrasound elastography of the shoulder joint tendons
A dissertation submitted to the Faculty of Health Sciences in full compliance for the requirement for the Master’s Degree in Technology: Radiography at Durban University of Technology, 2020.
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Prostate Tissue Motion Tracking and Ultrasound Elastography Using Tissue Mechanics Derived Constraints
… lack specificity, such as a digital rectal exam. Ultrasound elastography, a method that can be used to develop and test algorithms that output stiffness, strain, and displacement data captured by ultrasound radio frequency readings, offers a potential solution to these challenges. An initial …
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Assessment of Cardiac Function by Acoustic Radiation Force (ARF) Based Methods of Ultrasound Elastography
… and include Ejection Fraction and Doppler and ultrasound strain imaging. These measurements are indirect measures that rely on cardiac motion or volume changes. The measurements are load dependent and could be affected by the heart rhythm and valvular disorders. Despite research toward this …
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Immunohistochemical Markers and Ultrasound Elastography - New Diagnostic Options in the Assessment of Thyroid Nodules // Имунохистохимични маркери и ултразвукова еластография - нови диагностични възможности в уточняването на тиреоидните възли
Целта на проучването е да оцени предиктивната стойност на някои ултразвукови, еластографски, цитоморфологични и имунохистохимични характеристики в диференциалната диагноза на тиреодните възли. Проспективно са изследвани 1483 пациента с възлеста струма. Събраните данни сочат, че тънкоиглената …
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Multi-scale quantitative elastography and its application to blood pressure estimation
Elastography is a method that can be used to measure the elasticity of soft biological tissue and, ultimately, to detect cancerous tumors. In this thesis, quantitative compression based ultrasound elastography is developed using a fast multi-scale approach. The inverse problem optimization methods …
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NODULI TIROIDEI NELL'ACROMEGALIA: RUOLO DELL'ELASTOSONOGRAFIA
Objective: Ultrasound-elastography (US-E) appears to be a helpful tool for the diagnosis of thyroid cancer. In acromegaly multinodular goiter is a common occurrence while the prevalence of thyroid cancer is still debated. Aims were to evaluate thyroid nodules in acromegaly and to establish the …
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Calibration of sonographic gel probe covers for in-vivo mechanical testing
… a non-invasive medical imaging tool, which uses ultrasound elastography to test the mechanical properties of cervical tissue, has been developed. The hand-held ultrasound indentation system will enable in vivo collection of stress-strain data from patients that will provide researchers with the …
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Micro-motion detection by optical coherence tomography (OCT) and its clinical applications
… tissues has various applications such as ultrasound elastography and magnetic resonance elastography (MRE). Ultrasound transducers, the most commonly used tool to detect endogenous and exogenous micro-motions, have a number of drawbacks: including the requirements of the physical contact …
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EXAMINING THE RELATIONSHIPS BETWEEN SHOULDER AND ELBOW SOFT-TISSUE PROPERTIES, THROWING MECHANICS, AND RANGE OF MOTION IN ADULT BASEBALL PITCHERS
… factors. The reliability of a novel shearwave ultrasound elastography imaging protocol was developed and tested for inter- and intra-rater reliability and found to be reliable for 10/11 tissue properties. After the completion of protocol design, 26 healthy and currently competitive baseball …
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Development of Surface Acoustic Wave Optical Coherence Elastography (SAW-OCE) for Soft Tissue Characterisation
… modalities such as the magnetic resonance elastography (MRE) and the ultrasound elastography to quantify the mechanical properties. Although the magnetic resonance imaging (MRI) and the ultrasound imaging can penetrate deep inside the human body, the millimetre-scale spatial resolution has …
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Mechanical characterization of tissue-like materials using information based machine learning
… may be indicative of disease processes. Medical elastography techniques are an attempt to create images of the mechanical behavior to increase the sensitivity and specificity of existing imaging modalities. Current quantitative elasticity imaging methods rely on a priori assumptions of the tissue …
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A 3-D Multiparametric Ultrasound Elasticity Imaging System for Targeted Prostate Biopsy Guidance
… serum, clinical guidelines recommend transrectal ultrasound-guided biopsy. However, lesions are often indistinguishable from noncancerous prostate tissue in conventional B-mode ultrasound images, which have a diagnostic sensitivity of about 30%, so the biopsy is not typically targeted to …
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The Mechanism of Action of Hyaluronan Therapy as a Treatment for Osteoarthritis and the Assessment of Osteoarthritic Articular Cartilage Using Ultrasound
… and tissue level, and (2) whether quantitative ultrasound imaging can detect early degenerative changes in articular cartilage before irreversible osteoarthritic damage develops. By combining molecular characterisation, ex vivo cartilage experiments, and advanced ultrasound imaging, the research …