Searched for: contributor%3A%22de+Jong%2C+N.+%28promotor%29%22
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Simoes dos Santos, D. (author)
Cardiovascular diseases stand as the leading cause of death worldwide. Cardiovascular diseases are a group of disorders of the heart and blood vessels, such as atherosclerosis, congenital heart diseases, rheumatic heart diseases, and arrhythmias. Early detection of cardiovascular issues is imperative for effective treatment, and the...
doctoral thesis 2024
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Guo, P. (author)
This thesis presents the design and implementation of integrated ultrasound transceivers for use in transfontanelle ultrasonography (TFUS). Two generations of ultrasound transceiver ASICs integrated with PZT transducer arrays intended for TFUS are presented. In the first generation, a novel AFE design that combines an LNA with the continuous TGC...
doctoral thesis 2023
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Ossenkoppele, B.W. (author)
High-frame-rate volumetric ultrasound imaging is highly desired to enable novel clinical ultrasound applications. However, realizing high-quality volumetric ultrasound imaging at a high frame rates (>500 Hz) is challenging. Keeping the cable count and data rate of the transducer device at a realistic level without sacrificing image quality to...
doctoral thesis 2023
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Hopf, Y.M. (author)
This thesis describes the design of application-specific integrated circuits (ASICs) for high-frame-rate 3D intracardiac echocardiography (ICE) probes. The work follows the whole process from the analysis of the application to the testing of a prototype with all envisioned functionality. It starts with the evaluation of the main challenges posed...
doctoral thesis 2023
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Mozaffarzadeh, M. (author)
doctoral thesis 2022
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Zhang, D. (author)
For exploration and development of the earth, seismic surveys are acquired to provide information about the subsurface, within specifications of accuracy set by geologists and engineers, and within business constraints on budgets and turn-around time for processing and interpretation of the data. The case of seismic surveys that are acquired,...
doctoral thesis 2022
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van Willigen, D.M. (author)
This thesis describes the design, prototyping and evaluation of matrix-based clamp-on ultrasonic flow meters. Several new measurement techniques are presented as well as an Application-Specific Integrated Circuit (ASIC) designed for accurate measurement of flow velocity with matrix transducers.<br/><br/>The influence of circuit topologies on the...
doctoral thesis 2022
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Kang, E. (author)
This thesis describes the design and realization of integrated ultrasound transceivers for carotid artery imaging and intracardiac echocardiography (ICE). The goal of this work is to investigate system- and circuit-level techniques to address requirements and implementation bottlenecks in these applications. Prototype chips are presented to...
doctoral thesis 2021
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Sabbadini, A. (author)
Diastolic heart failure is one of the principal causes of death in Western countries, and there is currently no treatment available; prevention, on the other hand, may be possible, provided an early enough diagnosis. The worsening of diastolic functionality is associated with increased values of cardiac stiffness, which could therefore provide a...
doctoral thesis 2021
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Taskin, U. (author)
Breast cancer is the most common type of cancer for women and in developed countries it forms one of their largest threats. Many studies have shown that early detection by screening is important for achieving a successful treatment and reducing the mortality rate. Nowadaysmammography is the gold standard for breast cancer screening. However,...
doctoral thesis 2021
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Massaad Mouawad, J.M. (author)
Ultrasonic flow meters are widely applied to measure flow in a variety of applications. The vast majority of ultrasonic flow meters are based on the measurement of the transit time of an acoustic pulse through the fluid. This can either be done in-line, by inserting a spool piece with ultrasonic transducers into the pipe carrying the fluid, or...
doctoral thesis 2021
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Chen, Z. (author)
This thesis describes low-power application-specific integrated circuit (ASIC) designs to mitigate the constraint of cable count in miniature 3-D TEE probes. Receive cable count reduction techniques including subarray beamforming and digital time-division multiplexing (TDM) have been explored and the effectiveness of these techniques has been...
doctoral thesis 2020
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Qu, S. (author)
During the past decade, time-lapse seismic technology has been widely applied in hydrocarbon reservoir management. It is a very powerful method to obtain information on reservoir changes in the inter-well regions. This information helps to identify bypassed hydrocarbons and extend the economic life of a field. In a typical scenario, one baseline...
doctoral thesis 2020
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Shabanimotlagh, M. (author)
doctoral thesis 2018
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Masaya, S. (author)
Seismic imaging is a significant technology to provide the image of the subsurface in several fields such as hydrocarbon exploration/production and civil engineering. A fundamental problem in seismic imaging is that both the depth reflectivity and velocity distribution of the subsurface have to be predicted by only seismic events observed at the...
doctoral thesis 2018
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Chen, C. (author)
This thesis describes the analysis, design and evaluation of front-end application-specific integrated circuits (ASICs) for 3-D medical ultrasound imaging, with the focus on the receive electronics. They are specifically designed for next-generation miniature 3-D ultrasound devices, such as transesophageal echocardiography (TEE), intracardiac...
doctoral thesis 2018
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Leinders, S.M. (author)
We design and demonstrate a prototype ultrasound sensor based on a photonic micro-ring resonator integrated on a silicon membrane, and show that it can detect very low pressure ultrasound waves. The use of integrated photonics in future array transducers has several benefits: for instance it provides a small spatial footprint, compatibility with...
doctoral thesis 2017
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Lopez Angarita, G.A. (author)
Surface-related multiple elimination (SRME) is one of the most commonly used methods for suppressing surface multiples. However, in order to obtain an accurate surface multiple estimation, dense source and receiver sampling is required. The traditional approach to this problem is performing data interpolation prior to multiple estimation. Though...
doctoral thesis 2016
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Yu, Z. (author)
This thesis describes the design of a front-end application-specific integrated circuit (ASIC), which will be put into the tip of a miniature ultrasound probe for 3D Trans-Esophageal Echocardiography (TEE). To enable 3D TEE, a matrix piezoelectric ultrasound transducer with more than 2000 elements will be used. Since a gastroscopic tube cannot...
doctoral thesis 2012
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