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Park, Jeongwoo (author)Moral values influence humans in decision-making. Pluralist moral philosophers argue that human morality can be represented by a finite number of moral values, respecting the differences in moral views. Recent advancements in NLP show that language models retain a discernible level of knowledge in deontological ethics and moral norms of society....master thesis 2023
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Spengler, Daniel (author)The study of tumor microenvironments (TMEs) and immune cell composition in cancer, a disease characterized by uncontrolled growth and spread of tumor cells, has become increasingly important for understanding tumor progression and patient outcomes. Tools such as the TME-Analyzer enable this kind of research, but their manual workflows highlight...master thesis 2023
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Galjaard, Jeroen (author)Few-shot learning presents the challenging problem of learning a task with only a few provided examples. Gradient-Based Meta-Learners (GBML) offer a solution for learning such few-shot problems. These learners approach the few-shot problem by learning an initial parameterization that requires only a few adaptation steps for new tasks. Although...master thesis 2023
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Goedhart, Aisha (author)Primary liver cancer is a commonly diagnosed cancer and accurate diagnosis is crucial for treatment planning. To differentiate between malignant and benign liver tumors, contrast-enhanced MRI is typically used as it provides information over multiple contrast phases. However, diagnosis based on MRI is challenging. In this study, automatic...master thesis 2023
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van Oosterhoudt, Ruben (author)Introduction: Magnetic Resonance Imaging is a commonly used technique for the initial diagnosis of gliomas. T1, T2, T2-FLAIR, and post-contrast T1 with gadolinium-based contrast agents (GBCAs) can show tumor characteristics. However, using this contrast agent poses a risk to patients with kidney failures, has environmental impact, and increases...master thesis 2023
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Cui, Jianfeng (author)We explored the possibility of improving cross-view matching performance with self-supervised learning techniques and perform interpretations in terms of the embedding space of image features. The effect of pre-training by contrastive learning is verified quantitatively by experiments, and also exhibited by visualization of the feature space.master thesis 2023
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Li, H. (author), Li, X. (author), Collado Lara, G. (author), Lattwein, K.R. (author), Mastik, Frits (author), Beurskens, Robert (author), van der Steen, A.F.W. (author), Verweij, M.A. (author), de Jong, N. (author), Kooiman, Klazina (author)Ultrasound contrast-mediated medical imaging and therapy both rely on the dynamics of micron- and nanometer-sized ultrasound cavitation nuclei, such as phospholipid-coated microbubbles and phase-change droplets. Ultrasound cavitation nuclei respond non-linearly to ultrasound on a nanosecond time scale that necessitates the use of ultra-high...journal article 2023
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Hirschler, Lydiane (author), Sollmann, Nico (author), Schmitz-Abecassis, Bárbara (author), Pinto, Joana (author), Arzanforoosh, Fatemehsadat (author), Tseng, C. (author), Vos, F.M. (author), Warnert, E.A.H. (author), Smits, M. (author)Preoperative clinical magnetic resonance imaging (MRI) protocols for gliomas, brain tumors with dismal outcomes due to their infiltrative properties, still rely on conventional structural MRI, which does not deliver information on tumor genotype and is limited in the delineation of diffuse gliomas. The GliMR COST action wants to raise...review 2023
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Hangel, Gilbert (author), Schmitz-Abecassis, Bárbara (author), Pinto, Joana (author), Sollmann, Nico (author), Tseng, C. (author), Vos, F.M. (author), Warnert, E.A.H. (author), Smits, M. (author), Petr, Jan (author)Preoperative clinical MRI protocols for gliomas, brain tumors with dismal outcomes due to their infiltrative properties, still rely on conventional structural MRI, which does not deliver information on tumor genotype and is limited in the delineation of diffuse gliomas. The GliMR COST action wants to raise awareness about the state of the art...review 2023
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Venugopal, Krishnapriya (author), Arzanforoosh, Fatemeh (author), van Dorth, Daniëlle (author), Smits, M. (author), van Osch, Matthias J.P. (author), Hernandez-Tamames, J.A. (author), Warnert, E.A.H. (author), Poot, Dirk H.J. (author)Characterization of tumor microvasculature is important in tumor assessment and studying treatment response. This is possible by acquiring vascular biomarkers with magnetic resonance imaging (MRI) based on dynamic susceptibility contrast (DSC). We propose magnetic resonance vascular fingerprinting (MRVF) for hybrid echo planar imaging (HEPI)...journal article 2023
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Zangabad, Reza Pakdaman (author), Li, H. (author), Kouijzer, Joop J.P. (author), Langeveld, Simone A.G. (author), Beekers, Ines (author), Verweij, M.A. (author), de Jong, N. (author), Kooiman, Klazina (author)Understanding and controlling the ultrasound contrast agent (UCA)'s response to an applied ultrasound pressure field are crucial when investigating ultrasound imaging sequences and therapeutic applications. The magnitude and frequency of the applied ultrasonic pressure waves affect the oscillatory response of the UCA. Therefore, it is...journal article 2023
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Fang, Yitian (author), van Ooijen, Lisanne (author), Ambagtsheer, Gisela (author), Nikolaev, Anton V. (author), Clahsen-van Groningen, Marian C. (author), Dankelman, J. (author), de Bruin, Ron W.F. (author), Minnee, Robert C. (author)Objectives: Normothermic machine perfusion (NMP) provides a platform for pre-transplant kidney quality assessment that is essential for the use of marginal donor kidneys. Laser speckle contrast imaging (LSCI) presents distinct advantages as a real-time and noncontact imaging technique for measuring microcirculation. In this study, we aimed to...journal article 2023
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Tseng, C. (author), Jaspers, Jaap (author), Romero, Alejandra Mendez (author), Wielopolski, Piotr (author), Smits, M. (author), van Osch, Matthias J.P. (author), Vos, F.M. (author)The arterial input function (AIF) plays a crucial role in estimating quantitative perfusion properties from dynamic susceptibility contrast (DSC) MRI. An important issue, however, is that measuring the AIF in absolute contrast-agent concentrations is challenging, due to uncertainty in relation to the measured (Formula presented.) -weighted...journal article 2023
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van Ooijen, Lisanne (author)In the Netherlands, over 12% of the population has chronic kidney damage resulting in about 2000 patients with renal failure each year. Replacement of the kidney function by transplantation is desired, but due to a shortage of donor kidneys, the waiting list for a transplant is...master thesis 2022
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Fu, Yuan (author)Facial expression recognition on head-mounted devices (HMDs) is an intriguing research field because of its potential in various applications, such as interactive virtual reality video meetings. Existing work focuses on building a supervised learning pipeline that utilizes a vast amount of labeled periocular images taken by the built-in cameras....master thesis 2022
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Teeuwen, Tom (author)<b>OBJECTIVE </b>This study aims to compare non-invasive real-time optical imaging and measuring methods for the quantification of microcirculation of organs during normothermic machine perfusion (NMP). This could help to determine which method is most promising for further development towards a clinical objective transplantability assessment...master thesis 2022
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Zeng, Liang (author)Self-supervised contrastive learning has achieved remarkable performance in computer vision. Its success relies on certain priors that vary from different tasks and data at hand, e.g, the object-centric prior implied by ImageNet. For segmentation on complex scenes, researchers have introduced salient objects or auxiliary labels as priors to...master thesis 2022
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Breunissen, Rens (author)Numerical methods for solving problems with a large contrast in the coefficients are investigated in this report. These types of problems typically appear in basin modeling. Specifically, the deflation and restricted additive Schwarz (RAS) methods are compared for their effectiveness in solving this type of problem in combination with the...master thesis 2022
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Wahyulaksana, G. (author), Wei, Luxi (author), Schoormans, Jasper (author), Voorneveld, J.D. (author), van der Steen, A.F.W. (author), de Jong, N. (author), Vos, H.J. (author)Suppressing tissue clutter is an essential step in blood flow estimation and visualization, even when using ultrasound contrast agents. Blind source separation (BSS)-based clutter filter for high-framerate ultrasound imaging has been reported to perform better in tissue clutter suppression than the conventional frequency-based wall filter and...journal article 2022
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Taskin, U. (author), Suzuki, Atsuro (author), Terada, Takahide (author), Tsubota, Yushi (author), van Dongen, K.W.A. (author)Quantitative images showing the speed of sound proffle of the breast may be obtained by employing full-waveform inversion (FWI) methods on the measured data. These reconstruction methods work well for both dense and normal breasts. Contrast source inversion (CSI) is a frequency domain FWI method. In literature, many examples of successful...conference paper 2022