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Wilgenburg, Gert (author)The use of non-destructive tests for assessing the material status of concrete structures in the Netherlands remains relatively uncommon, despite the growing demand for the preservation of existing structures under the VenR policy of Rijkswaterstaat. Skepticism towards NDTs is reflected in the scarcity of documented case studies in publicly...master thesis 2024
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Jiang, Haitao (author)The technique of ultrasound-guided needle insertion is commonly employed in various clinical fields, including biopsy, anesthesia, brachytherapy, and ablation. However, the visibility of the needle in ultrasound (US) images remains a persistent challenge. To improve the guidance accuracy of needle insertion during interventions, it is crucial to...master thesis 2023
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Metz, Jan-Paul (author), Jaspers, Joost (author)The primary objective of the subsystem discussed in this report is to continuously estimate the transfer-response of the system using the position measured by the interferometer, in order to accomplish adapted model inverted control using a dynamically updating model. In addition, this subsystem design incorporates a controller that is crucial...bachelor thesis 2023
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van Loosbroek, Suus (author)<b>Background: </b>The diaphragm is poorly monitored in the Intensive care unit (ICU), despite its evident importance in respiration. Ultrasound (US) is frequently employed to evaluate diaphragm thickness (DT) and diaphragm thickening factor (DTF) but requires expertise and only covers a small diaphragm area. Therefore, advanced US (post-...master thesis 2023
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Mooiweer, Martijn (author)Acoustic levitation is an novel method that could lend itself very useful to fast and precise transportation of small objects. To verify the acoustic field and the modelling assumptions, the acoustic field must be visualised and quantified. Different methods to visualise a pressure gradient are investigated and rated against design requirements....master thesis 2023
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WEI, LAI (author)3-D ultrasound imaging using a 2-D array provides much more information about our body than conventional 2-D imaging. However, due to the large number of elements in a 2-D array, channel count reduction is required and the power and area budget for each element is limited. It is quite challenging to design an ultrasound interface circuit with...master thesis 2023
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Sluijter, Judith (author)Wrong-level spine surgery (WLS) is a medical error with severe consequences for the patient and medical staff. The current golden standard to prevent WLS during spinal surgery is fluoroscopy images acquired by a C-arm. However, this approach uses ionising radiation and interrupts the standard surgical workflow. To overcome these disadvantages,...master thesis 2022
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Donse, Daniël (author)Background: The procedure to fit a prosthetic socket to a patient, which can assure the patient’s comfort during activities of daily living, is labour intensive. Such a lengthy procedure could benefit from an automated and more efficient data-driven method capable of automatically tracking the relative movement between the patient’s tibia and...master thesis 2022
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Lolla, Sai Sandeep (author)Implantable Medical Devices (IMDs) offer a wide range of applications including but not limited to blood pressure monitoring, bladder pressure sensing, glucose level monitoring, neurostimulation etc. For such applications, it is often desired that an IMD is as small as possible while meeting the required objective. Consequently, using a battery...master thesis 2022
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Hintzen, Annemijn (author)Elongated mechanical ventilation is associated with ventilator-induced lung injury (VILI), diaphragmatic muscle atrophy, patient discomfort, increased mortality rates and higher healthcare costs. However, hospitals are lacking in user-friendly, affordable and accurate methods to measure the decline the respiratory condition. Computed tomography ...master thesis 2022
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Burghoorn, Niels (author)Medical technology has seen great progress over the last centuries, developing increasingly more specialised therapy to benefit human health. The rise of the pharmaceutical industry and the research it drives are contributors to this success. However, in humanity's attempt to tackle more and more complex health issues, the conventional methods...master thesis 2022
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Visser, Jeffrey (author)<b>Background</b>: The prevention of ventilator-induced lung injury (VILI) is an important topic in criticalcare. Lung overdistention is a great attributor to VILI. Regional evaluation of the pulmonary mechanicsis a relatively new method and is currently being studied using electrical impedance tomography (EIT)and computed tomography (CT)....master thesis 2022
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Koele, Berend (author)Vagus nerve stimulation (VNS) has been proven to be an effective treatment for patients suffering from drug-resistant epilepsy. Current vagus nerve stimulators are either implantable devices or bulky, handheld devices. The implant consists of a pulse generator beneath the skin of the chest, connected to electrodes that are wired to the cervical...master thesis 2021
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Subramaniam, Indulakshmi (author)Active implantable devices are conventionally powered with batteries. The miniaturisation of implants necessitates the need to find an efficient way to transfer power wirelessly. Ultrasound energy transfer with its short wavelength, small receiving transducer size, beamforming capability makes deep tissue penetration possible making it a good...master thesis 2021
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Mendonck, Michiel (author)Comets are celestial objects that are thought to have formed at the outer edges of our solar system. The ices they contain is thought to be preserved since their formation in the molecular cloud phase, before the formation of the sun. The formation of ices in the molecular cloud occur via the ice mantle accretion rocess, by condensation of...master thesis 2021
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Fransen, Stefan (author)This work investigates low-cost three-dimensional (3D) ultrasound reconstruction from a two-dimensional (2D) hand-held probe with motion tracking. The best available motion tracking is an optical tracking system, which is expensive and requires external tracking hardware. Here, a low-cost manoeuvrable motion tracker, an inertial measurement unit...master thesis 2021
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Dijkema, Eric (author)Ultrasound (US) neurostimulation, the non-pharmacological, reversible excitation or inhibition of the nervous system using ultrasonic waves, is emerging as a high interest topic in neurostimulation research. In the current project, an attempt was made to demonstrate US neuromodulation in a Lumbricus Terrestris model of evoked compound action...master thesis 2020
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Westhoek, Youri (author)Implantable medical devices (IMDs) such as cardiac pacemakers, cochlear implants, and neurostimulators improve millions of people’s lives every day. Over the years, IMDs have significantly improved in function, increased in lifetime, and decreased in size. However, further miniaturisation is limited by the batteries used to power these devices,...master thesis 2020
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Sonnya Dellarosa, Sonnya (author)Breast cancer, as one of the main causes of cancer death in the world, requires early detection to increase rate of survival. One idea is to develop a device that women could use at home to perform a regular self-check. Ultrasound is a safe, radiation-free technology that could be used for this device. Ultrasound systems (B-mode) that are...master thesis 2020
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Teye, Joshua (author)Diagnostic imaging is a fundamental requirement for the effective treatment of about 25 % of patients globally. Ultrasound imaging is considered the safest, least expensive and most convenient diagnostic imaging modality. Its widespread adoption has been in the area of 2D imaging. However, the accuracy of diagnosis with 2D ultrasound imaging is...master thesis 2020
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