Search for dissertations about: "Focused ultrasound"
Showing result 1 - 5 of 31 swedish dissertations containing the words Focused ultrasound.
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1. Toward increased applicability of ultrasound contrast agents
Abstract : Ultrasound is one of the most widely used modalities in medical imaging because of its high cost-effectiveness, wide availability in hospitals, generation of real-time images, and use of nonionizing radiation. However, the image quality can be insufficient in some patients. READ MORE
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2. Effects of high intensity focused ultrasound on the intervertebral disc
Abstract : The purpose of this study was to study and try to optimise high intensity focused ultrasound treatment of the intervertebral disc. We demonstrated that it was possible to heat intervertebral discs with HIFU delivered by 50 or 5 mm diameter ultrasound transducers. READ MORE
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3. Acoustic manipulation of cells and microbeads in droplet microfluidics
Abstract : Droplet microfluidics has emerged as a promising platform for miniaturisation of biological assays on-chip. In droplet microfluidics small water droplets (nL-pL) surrounded by an immiscible carrier oil are generated at high throughput. READ MORE
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4. Ultrasonic Methods for Quantitative Carotid Plaque Characterization
Abstract : Cardiovascular diseases are the leading causes of death worldwide and improved diagnostic methods are needed for early intervention and to select the most suitable treatment for patients. Currently, carotid artery plaque vulnerability is typically determined by visually assessing ultrasound B-mode images, which is influenced by user-subjectivity. READ MORE
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5. Clinical applications of acoustophoresis in blood based diagnostics
Abstract : In this thesis, acoustofluidics has been used to process blood samples as a sample preparation step prior to biomarker detection. This is often required as the large amount of blood cells otherwise can interfere with the detection method. Acoustofluidics means moving particles or cells with acoustic forces within microfluidic channels. READ MORE