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Heymans, Sophie V. (author), Collado Lara, G. (author), Rovituso, M. (author), Vos, H.J. (author), D'hooge, Jan (author), de Jong, N. (author), Van Den Abeele, Koen (author)Superheated nanodroplet (ND) vaporization by proton radiation was recently demonstrated, opening the door to ultrasound-based in vivo proton range verification. However, at body temperature and physiological pressures, perfluorobutane nanodroplets (PFB-NDs), which offer a good compromise between stability and radiation sensitivity, are not...journal article 2022
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Wei, Luxi (author), Boni, Enrico (author), Ramalli, Alessandro (author), Fool, F. (author), Noothout, E.C. (author), van der Steen, A.F.W. (author), Verweij, M.D. (author), Tortoli, Piero (author), de Jong, N. (author), Vos, H.J. (author)Two-dimensional (2-D) arrays offer volumetric imaging capabilities without the need for probe translation or rotation. A sparse array with elements seeded in a tapering spiral pattern enables one-to-one connection to an ultrasound machine, thus allowing flexible transmission and reception strategies. To test the concept of sparse spiral array...journal article 2022
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Soozande, Mehdi (author), Ossenkoppele, B.W. (author), Hopf, Y.M. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author), de Jong, N. (author), Vos, H.J. (author), Bosch, Johan G. (author)Atrial fibrillation (AF) is the most common cardiac arrhythmia and is normally treated by RF ablation. Intracardiac echography (ICE) is widely employed during RF ablation procedures to guide the electrophysiologist in navigating the ablation catheter, although only 2-D probes are currently clinically used. A 3-D ICE catheter would not only...journal article 2022
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Pirzadian, J. (author), Souhoka, T. (author), Herweijer, M. (author), van Heel, M.E. (author), van Wamel, W. J.B. (author), Goossens, R.H.M. (author), Severin, J. A. (author), Vos, M. C. (author)In hospitals, sinks act as reservoirs for bacterial pathogens. To assess the extent of splashing, fluorescein dye was added to four hospital sinks previously involved in pathogen dispersal to the environment and/or transmission to patients, and one sink that was not. Applying dye to the p-trap or tailpiece did not result in any fluorescent...journal article 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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Finger, D. Felix (author), de Vries, R. (author), Vos, Roelof (author), Braun, Carsten (author), Bil, Cees (author)The number of studies on hybrid-electric aircraft is steadily increasing because these configurations can lead to lower operating costs and environmental impact than traditional aircraft. However, due to the lack of reference data of actual hybrid-electric aircraft, the design tools and results are difficult to validate. This paper analyzes...journal article 2022
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Heesterbeek, David G.J. (author), Koolstra, Kirsten (author), van Osch, Matthias J.P. (author), van Gijzen, M.B. (author), Vos, F.M. (author), Nagtegaal, M.A. (author)Purpose: To develop a method for MR Fingerprinting (MRF) sequence optimization that takes both the applied undersampling pattern and a realistic reference map into account. Methods: A predictive model for the undersampling error leveraging on perturbation theory was exploited to optimize the MRF flip angle sequence for improved robustness...journal article 2022
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Nunez-Gonzalez, L. (author), Nagtegaal, M.A. (author), Poot, D.H.J. (author), de Bresser, J. (author), van Osch, M. J.P. (author), Hernandez-Tamames, J.A. (author), Vos, F.M. (author)MR fingerprinting (MRF) is a promising method for quantitative characterization of tissues. Often, voxel-wise measurements are made, assuming a single tissue-type per voxel. Alternatively, the Sparsity Promoting Iterative Joint Non-negative least squares Multi-Component MRF method (SPIJN-MRF) facilitates tissue parameter estimation for...journal article 2022
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Hari, S. (author), Slotman, Johan A. (author), Vos, Y. (author), Floris, Christian (author), van Cappellen, W.A. (author), Hagen, C.W. (author), Stallinga, S. (author), Houtsmuller, A.B. (author), Hoogenboom, J.P. (author)Super-resolution fluorescence microscopy can be achieved by image reconstruction after spatially patterned illumination or sequential photo-switching and read-out. Reconstruction algorithms and microscope performance are typically tested using simulated image data, due to a lack of strategies to pattern complex fluorescent patterns with...journal article 2022
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Hopf, Y.M. (author), Ossenkoppele, Boudewine W. (author), Soozande, Mehdi (author), Noothout, E.C. (author), Chang, Z.Y. (author), Chen, Chao (author), Vos, H.J. (author), Bosch, Johan G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)In this article, an application-specific integrated circuit (ASIC) for 3-D, high-frame-rate ultrasound imaging probes is presented. The design is the first to combine element-level, high-voltage (HV) transmitters and analog front-ends, subarray beamforming, and in-probe digitization in a scalable fashion for catheter-based probes. The...journal article 2022
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Karkalousos, D. (author), Noteboom, S. (author), Hulst, H. E. (author), Vos, F.M. (author), Caan, M.W.A. (author)Objective. Machine Learning methods can learn how to reconstruct magnetic resonance images (MRI) and thereby accelerate acquisition, which is of paramount importance to the clinical workflow. Physics-informed networks incorporate the forward model of accelerated MRI reconstruction in the learning process. With increasing network complexity,...journal article 2022
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Starmans, Martijn P.A. (author), Timbergen, Milea J.M. (author), Vos, Melissa (author), Renckens, Michel (author), Grünhagen, Dirk J. (author), van Leenders, Geert J.L.H. (author), Niessen, W.J. (author), Visser, Jacob J. (author), Klein, Stefan (author)Treatment planning of gastrointestinal stromal tumors (GISTs) includes distinguishing GISTs from other intra-abdominal tumors and GISTs’ molecular analysis. The aim of this study was to evaluate radiomics for distinguishing GISTs from other intra-abdominal tumors, and in GISTs, predict the c-KIT, PDGFRA, BRAF mutational status, and mitotic...journal article 2022
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Smeets, Jeroen B.J. (author), Vos, Kim (author), Abbink, Emma (author), Plaisier, M.A. (author)The size-weight illusion is well-known: if two equally heavy objects differ in size, the large one feels lighter than the small one. Most explanations for this illusion assume that because the information about the relevant attribute (weight itself) is unreliable, information about an irrelevant but correlated attribute (size) is used as well...journal article 2022
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Vos, S.E. (author), Anders, Katharina (author), Kuschnerus, M. (author), Lindenbergh, R.C. (author), Höfle, Bernhard (author), Aarninkhof, S.G.J. (author), de Vries, S. (author)Sandy coasts form the interface between land and sea and their morphologies are highly dynamic. A combination of human and natural forcing results in morphologic changes affecting both nature values and coastal safety. Terrestrial laser scanning (TLS) is a technique enabling near-continuous monitoring of the changing morphology of a sandy...journal article 2022
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Vos, J. (author), Farah, H. (author)Road designers need to have insights where deceleration and acceleration are expected related to the position of the curve, and in in which amount so that drivers are able to safely decelerate and accelerate respectively into and out of a freeway curve. For this, empirical speed data is needed. Therefore, Floating Car Data in 153 curves in...journal article 2022
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Guo, P. (author), Chang, Z.Y. (author), Noothout, E.C. (author), Vos, H.J. (author), Bosch, Johan G. (author), de Jong, N. (author), Verweij, M.D. (author), Pertijs, M.A.P. (author)This article presents a compact analog front-end (AFE) circuit for ultrasound receivers with linear-in-dB continuous gain control for time-gain compensation (TGC). The AFE consists of two variable-gain stages, both of which employ a novel complementary current-steering network (CCSN) as the interpolator to realize continuously variable gain....journal article 2022
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de Vries, R. (author), van Arnhem, N. (author), Avallone, F. (author), Ragni, D. (author), Vos, Roelof (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)This experimental study focuses on the aerodynamic interaction between an over-the-wing (OTW) propeller and a wing boundary layer. An OTW propeller is positioned above the hinge line of a wing with a trailing-edge flap. Measurements are carried out with and without axial pressure gradients by deflecting the flap and by extending the flat upper...journal article 2021
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Kim, Taehoon (author), Fool, F. (author), Simoes dos Santos, D. (author), Chang, Z.Y. (author), Noothout, E.C. (author), Vos, H.J. (author), Bosch, Johan G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)This paper presents an ultrasound transceiver application-specific integrated circuit (ASIC) directly integrated with an array of 12 × 80 piezoelectric transducer elements to enable next-generation ultrasound probes for 3D carotid artery imaging. The ASIC, implemented in a 0.18 µm high-voltage Bipolar-CMOS-DMOS (HV BCD) process, adopted a...journal article 2021
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Vos, J. (author), Farah, H. (author), Hagenzieker, Marjan (author)Operating speeds in Dutch freeway curves differ often by 20 km/h compared to their design speeds. Operating speed is thought to be influenced by how drivers perceive curves when approaching a curve. This explorative research explores which curve cues and other variables influence drivers’ speed choice in curves. For this purpose, a survey was...journal article 2021
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Kuschnerus, M. (author), Lindenbergh, R.C. (author), Vos, S.E. (author)Sandy coasts are constantly changing environments governed by complex, interacting processes. Permanent laser scanning is a promising technique to monitor such coastal areas and to support analysis of geomorphological deformation processes. This novel technique delivers 3-D representations of the coast at hourly temporal and centimetre...journal article 2021