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 9 of 9 for “"Shear Wave Imaging"”.
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Complex shear modulus reconstruction using ultrasound shear-wave imaging
… soft tissue mechanical properties. Ultrasound shear-wave imaging can provide quantitative information about soft tissue mechanical properties, specifically the complex shear modulus. Advancing this field has the potential to bridge molecular, cellular, and tissue biology and to influence …
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Shear-wave imaging guidance for high-intensity focused ultrasound therapy
… active development due to the need of better imaging guidance. Current technology for guiding HIFU is medical ultrasound imaging and magnetic resonance imaging, which mostly employ diagnostic imaging mode.<br/><br/>Most recently, magnetic resonance imaging has been adapted for real-time HIFU …
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Shear Wave Elastography Based on Optical Coherence Tomography
… techniques had been always rooted in medical imaging technique, classified into a range of scales, based on their imaging depth and resolution performance. In the scale of tissue micro structure, elastography is still a relatively new field, enabled by the recent advances in high-resolution …
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Imaging the local mechanical properties of the brain with high-resolution magnetic resonance elastography
… Assessment of neurological conditions requires imaging methods sensitive to microstructure and specific to neurodegenerative process. The noninvasive measurement of mechanical properties may provide this microstructural sensitivity necessary to improve early detection, differential diagnosis, …
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Measuring spatially varying elastic modulus of multi-compartment 3D collagen scaffold using indentation
… (i.e., using surface adhesion) and with dynamic shear-wave imaging estimates. We then show our modulus measurements can be biased because of coupling with sample boundaries. Finally, we develop a novel inverse approach for correcting the indentation measurement bias near continuously-varying …
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Quantitative estimates of mechanical properties from in vivo tumors of rodent animals
… focuses on using ultrasonic tools to image shear waves generated in spontaneous rodent mammary tumors to estimate the complex shear modulus under realistic conditions, and to assess the sensitivity for relating matrix viscoelasticity to tumor type and stage. Cylindrical, harmonic shear waves …
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Assessment of Cardiac Function by Acoustic Radiation Force (ARF) Based Methods of Ultrasound Elastography
… compliance. </p><p>These measures are based on imaging 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 …
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Soft tissue viscoelastic properties: measurements, models and interpretation
… The use of elastography techniques coupled with imaging technologies has been growing rapidly in recent years, which is promising for clinical applications. Each technique produces different mechanical behaviors due to the interaction of the stimuli and the structure of the tissue. An appropriate …
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A 3-D Multiparametric Ultrasound Elasticity Imaging System for Targeted Prostate Biopsy Guidance
… this work is to leverage ultrasound elasticity imaging methods, including acoustic radiation force impulse (ARFI) imaging and shear wave elasticity imaging (SWEI), to develop and optimize a robust 3-D elasticity imaging system for ultrasound-guided prostate biopsies and to quantify its …