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 24 for “"Therapeutic Ultrasound"”.
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Spatial control of cavitation in therapeutic ultrasound
… been proved to depend on this parameter, using ultrasound contrast agents allows for more predictable results. Therefore, in the second half of this study, we propose a focused ultrasound protocol that induces and monitors gas bubbles at the focus and allows for ex vivo validation of the …
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The relative effectiveness of periosteal pecking combined with therapeutic ultrasound compared to therapeutic ultrasound in the treatment of medial tibial stress syndrome type II
Thesis (Masters in Technology: Chiropractic), Durban Institute of Technology, Durban, South Africa, 2003.
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Cavitation methods in therapeutic ultrasound : techniques, mechanisms, and system design
Focused ultrasound is currently being developed as a non-invasive thermal ablation technique for benign and cancerous tumors in several organ systems. Although these therapies are designed to ablate tissue purely by thermal means, cavitation, the formation and collapse of gas bubbles, can occur. …
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Experimental and numerical investigation of wire waveguides for therapeutic ultrasound angioplasty
Therapeutic ultrasound angioplasty is an emerging minimally invasive cardiovascular procedure for disrupting atherosclerotic lesions using small diameter wire waveguides. The lesions are damaged through a combination of direct ablation, pressure waves, cavitation and acoustic streaming caused by …
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Design and evaluation of a 2-D planar therapeutic ultrasound phased array
Focused ultrasound continues to be investigated as an exciting technique for several medical therapy applications including tissue ablation. Phased array transducers serve as important devices for delivering the high intensity focused ultrasound to the targeted tissue. These arrays often produce …
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Continuous Therapeutic Ultrasound Decreases Pain Perception and Increases Pain Threshold After Muscle Damage
<p> Objective: Therapeutic ultrasound (TUS) is one of the most common treatment modalities used in the management of symptoms associated with delayed onset muscle soreness (DOMS). However, due to the lack of adequate research and poor study designs the ability to accurately determine if there is an …
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Design of a 2D MRI compatible robot for performing prostate cancer treatment using therapeutic ultrasound
Therapeutic ultrasound is a promising treatment method for many common cancers, including prostate cancer. Magnetic resonance image (MRI) guidance of therapeutic ultrasound permits targeting and monitoring of therapy. In this thesis a prototype MRI compatible positioning device for the treatment of …
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Models for Testing Contemporary Ultrasound Systems
Medical ultrasound systems are undergoing continuous development. Five areas of particular recent interest are shear wave elastography, interventional ultrasound, microultrasound, and therapeutic ultrasound. These new developments motivate demand for new tissue models. The work discussed in this …
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Ultrasound stimulated acoustic emission for monitoring thermal surgery
Therapeutic ultrasound describes a non-invasive surgical technique by which high-energy ultrasound is delivered to malignant tissue. This method must be monitored in order to ensure that the correct tissues are treated and that the tissues are treated with the proper dose. Typically, therapeutic …
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Calibration and Validation of an in Vitro Ultrasound Device to Deliver Targeted Thermal Enhancement of hMSC Osteogenesis
… disease. For targeted therapy and clinical use, therapeutic ultrasound in the 0.7 MHz to 3 MHz frequency range can provide relief and is convenient, portable and localized. Low-intensity pulsed ultrasound (LIPUS) has been proven in clinical studies to increase the rate of healing of non-union …
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Simulation methods and tissue property models for non-invasive transcranial focused ultrasound surgery
… be attacked by focusing highly intense ultrasound onto them. Focused ultrasound surgery is without the side effects of radiotherapy and chemotherapy, and the therapeutic effect of ultrasound therapy can be monitored in real- time using the proton chemical shift MRI technique. However, in …
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From a thin membrane to an unbounded solid : dynamics and instabilities in radial motion of nonlinearly viscoelastic spheres
… the brain and the lungs. Moreover, while modern therapeutic ultrasound techniques intentionally generate cavities within the tissue, the present investigation of the material response to harmonic excitations across various frequencies can lead to safer practice.
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Eficacia en la combinación de estimulación nerviosa eléctrica transcutánea y ultrasonido terapéutico en pacientes con diagnóstico de lumbociática, atendidos en la Clínica de Fisioterapia de la Universidad de El Salvador, Facultad Multidisciplinaria Oriental, San Miguel, año 2018
… to carry out a research work, applying two physiotherapeutic modalities simultaneously, this consists of the combination of Transcutaneous Electrical Nerve Stimulation and Therapeutic Ultrasound, which was applied in the Physiotherapy Clinic of the University of El Salvador, Eastern …
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Cavitation in focused ultrasound
… developed combining a high intensity<br/>focused ultrasound source and a pulsed-laser, for the study<br/>of cavitation in a field typical of those used for therapeutic ultrasound.<br/>The sonoptic chamber is specifically designed to avoid the formation<br/>of acoustic standing waves, known to have …
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Estimating the concentration of ultrasound contrast agents using ultrasonic backscatter in vitro
Ultrasound contrast agents (UCAs) are tiny microbubbles used clinically to enhance the contrast of B-mode images. Recently, UCAs have been combined with therapeutic ultrasound techniques to increase their effectiveness. These therapeutic techniques often require high concentrations of UCAs at …
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Investigations of Ultrasound-Guided Histotripsy Ablation for Soft Tissue Sarcomas, Osteosarcomas, and Brain Tumors
… is a non-thermal, non-invasive focused ultrasound therapy using controlled acoustic cavitation to mechanically disintegrate tissue into an acellular homogenate. Histotripsy applies microsecond-length, high pressure (> 10 MPa) pulses to initiate the rapid expansion and collapse of nuclei …
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Evaluation of short-term conservative treatment in patients with tennis elbow (lateral epicondylitis): A prospective randomised, assessor-blinded trial.
… lack of consensus on management and remains a therapeutic challenge. This study was a prospective randomised, assessor-blinded trial. 64 patients with tennis elbow referred by their GP to either the physiotherapy, orthopaedic or MSK CAT services, subject to eligibility criteria, were randomised …
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How accurate is translaryngeal ultrasound when compared to flexible nasal endoscopy in viewing vocal cord mobility in children?
… radiologist to use the Lumify® handheld ultrasound probe and application tool to assess the larynx and true vocal cord mobility. Combined TLUS and FFLs, short, looped and anonymised videos were formulated. Two qualified ENT specialists (neither trained in ultrasonography) consented to …
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