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A Pitch-Matched High-Frame-Rate Ultrasound Imaging ASIC for Catheter-Based 3-D Probes

Hopf, Y.M. (author), Simoes dos Santos, D. (author), Ossenkoppele, Boudewine W. (author), Noothout, E.C. (author), Chang, Z.Y. (author), Chen, Chao (author), Vos, H.J. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)

This article presents an application-specific integrated circuit (ASIC) for catheter-based 3-D ultrasound imaging probes. The pitch-matched design implements a comprehensive architecture with high-voltage (HV) transmitters, analog front ends, hybrid beamforming analog-To-digital converters (ADCs), and data transmission to the imaging system....

journal article 2024

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Broadband Effective Permittivity Simulation and Measurement Techniques for 3-D-Printed Dielectric Crystals

Hehenberger, Simon P. (author), Caizzone, Stefano (author), Thurner, Stefan (author), Yarovoy, Alexander (author)

Frequency-dependent dielectric properties of 3-D-printed structured dielectrics (dielectric crystals) with engineered effective permittivity for micro-and mmWave applications are studied. Different modeling and measurement techniques for broadband dielectric properties of such 3-D-printed crystals are reviewed, their tradeoffs discussed, and...

journal article 2023

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Swept-3-D Ultrasound Imaging of the Mouse Brain Using a Continuously Moving 1-D-Array - Part II: Functional Imaging

Generowicz, Bastian S. (author), Dijkhuizen, Stephanie (author), Bosman, Laurens W.J. (author), De Zeeuw, Chris I. (author), Koekkoek, Sebastiaan K.E. (author), Kruizinga, P. (author)

Functional ultrasound (fUS) using a 1-D-array transducer normally is insufficient to capture volumetric functional activity due to being restricted to imaging a single brain slice at a time. Typically, for volumetric fUS, functional recordings are repeated many times as the transducer is moved to a new location after each recording, resulting...

journal article 2023

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Swept-3-D Ultrasound Imaging of the Mouse Brain Using a Continuously Moving 1-D-Array-Part I: Doppler Imaging

Generowicz, Bastian S. (author), Dijkhuizen, Stephanie (author), De Zeeuw, Chris I. (author), Koekkoek, Sebastiaan K.E. (author), Kruizinga, P. (author)

Volumetric 3-D Doppler ultrasound imaging can be used to investigate large scale blood dynamics outside of the limited view that conventional 2-D power Doppler images (PDIs) provide. To create 3-D PDIs, 2-D-matrix array transducers can be used to insonify a large volume for every transmission; however, these matrices suffer from low...

journal article 2023

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High-Frame-Rate Volumetric Porcine Renal Vasculature Imaging

Wei, Luxi (author), Wahyulaksana, G. (author), Boni, Enrico (author), Noothout, E.C. (author), Duncker, Dirk J. (author), Tortoli, Piero (author), van der Steen, A.F.W. (author), de Jong, N. (author), Verweij, M.D. (author), Vos, H.J. (author)

Objective: The aim of this study was to assess the feasibility and imaging options of contrast-enhanced volumetric ultrasound kidney vasculature imaging in a porcine model using a prototype sparse spiral array. Methods: Transcutaneous freehand in vivo imaging of two healthy porcine kidneys was performed according to three protocols with...

journal article 2023

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Safe and Adaptive 3-D Locomotion via Constrained Task-Space Imitation Learning

Ding, J. (author), Lam, Tin Lun (author), Ge, Ligang (author), Pang, Jianxin (author), Huang, Yanlong (author)

Bipedal locomotion has been widely studied in recent years, where passive safety (i.e., a biped rapidly brakes without falling) is deemed to be a pivotal problem. To realize safe 3-D walking, existing works resort to nonlinear optimization techniques based on simplified dynamics models, requiring hand-tuned reference trajectories. In this...

journal article 2023

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A Pitch-Matched Transceiver ASIC With Shared Hybrid Beamforming ADC for High-Frame-Rate 3-D Intracardiac Echocardiography

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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Technology Development for MEMS: A Tutorial

French, P.J. (author), Krijnen, Gijs JM (author), Vollebregt, S. (author), Mastrangeli, Massimo (author)

Silicon sensors date back to before 1960 with early Hall and piezoresistive devices. These used simple processing that was part of the early integrated circuit (IC) industry. As the IC industry developed, silicon sensors could benefit from the technological advances. As silicon sensors advanced, there came the need for new technologies...

journal article 2022

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Sparse 2-D PZT-on-PCB Arrays With Density Tapering

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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Imaging Scheme for 3-D High-Frame-Rate Intracardiac Echography: A Simulation Study

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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3-D Instance Segmentation of MVS Buildings

Chen, Jiazhou (author), Xu, Yanghui (author), Lu, Shufang (author), Liang, Ronghua (author), Nan, L. (author)

We present a novel 3-D instance segmentation framework for multiview stereo (MVS) buildings in urban scenes. Unlike existing works focusing on semantic segmentation of urban scenes, the emphasis of this work lies in detecting and segmenting 3-D building instances even if they are attached and embedded in a large and imprecise 3-D surface model....

journal article 2022

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The Effect of Functional Pelvic Tilt on the Three-Dimensional Acetabular Cup Orientation in Total Hip Arthroplasty Dislocations

Snijders, Thom E. (author), Schlösser, Tom P.C. (author), Heckmann, Nathanael D. (author), Tezuka, Taro (author), Castelein, Rene M. (author), Stevenson, Rob P. (author), Weinans, Harrie (author), de Gast, Arthur (author), Dorr, Lawrence D. (author)

Background: Anterior and posterior pelvic tilt appears to play a role in total hip arthroplasty (THA) stability. When changing from the standing to the sitting position, the pelvis typically rotates posteriorly while the hips flex and this affects the femoro-acetabular positions. This case-control study compares changes in 3-D acetabular cup...

journal article 2021

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Editorial: Microbial Electrogenesis, Microbial Electrosynthesis, and Electro-bioremediation

Puig, Sebastià (author), Jourdin, L. (author), Kalathil, Shafeer (author)

contribution to periodical 2021

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3-D Virtual Seismology

Brackenhoff, J.A. (author), Thorbecke, J.W. (author), Wapenaar, C.P.A. (author)

We create virtual sources and receivers in a 3-D subsurface using the previously derived single-sided homogeneous Green's function representation. We employ Green's functions and focusing functions that are obtained using reflection data at the Earth's surface, a macrovelocity model, and the Marchenko method. The homogeneous Green's function is...

journal article 2021

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3D Elements for Phased-Array Systems: Analysis and Design

Yepes Julia, C. (author)

In recent years, radar systems and satellite communications require phased array antennas that are capable of incorporating frequency and angular selectivity while maintaining a low profile. Active phased array antennas must comply with stringent requirements in terms of sensitivity to interference caused by other nearby radiating systems,...

doctoral thesis 2020

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High-Precision Detection Method for Structure Parameters of Catenary Cantilever Devices using 3D Point Cloud Data

Liu, Wenqiang (author), Liu, Zhigang (author), Li, Qiao (author), Han, Zhiwei (author), Nunez, Alfredo (author)

This article proposes an automatic high-precision detection method for structure parameters of catenary cantilever devices (SPCCDs) using 3-D point cloud data. The steps of the proposed detection method are: 1) segmenting and recognizing the components of the catenary cantilever devices, 2) extracting the detection plane and backbone...

journal article 2020

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High-frame-rate 3-D vector flow imaging in the frequency domain

Rossi, Stefano (author), Ramalli, Alessandro (author), Fool, F. (author), Tortoli, Piero (author)

Ultrasound vector Doppler techniques for three-dimensional (3-D) blood velocity measurements are currently limited by low temporal resolution and high computational cost. In this paper, an efficient 3-D high-frame-rate vector Doppler method, which estimates the displacements in the frequency domain, is proposed. The novel method extends to 3...

journal article 2020

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Optimizing landfill aeration strategy with a 3-D multiphase model

van Turnhout, A.G. (author), Oonk, Hans (author), Scharff, Heijo (author), Heimovaara, T.J. (author)

In order to reduce the environmental and financial burden for future generations, approaches are needed to shorten aftercare of landfills. Aeration of the waste-body is a promising approach, however, the poor understanding of transport of gas and water through a waste-body makes it difficult to design an effective aeration strategy. The aim of...

journal article 2020

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3-D Short-Range Imaging with Irregular MIMO Arrays Using NUFFT-Based Range Migration Algorithm

Wang, J. (author), Aubry, P.J. (author), Yarovoy, Alexander (author)

3-D imaging with irregular planar multiple-input-multiple-output (MIMO) arrays is discussed. Due to signal acquisition on irregular spatial sampling grids by using these antenna arrays, the fast Fourier transform (FFT)-based imaging algorithms cannot readily be used for image formation. To avoid the application of computationally intensive...

journal article 2020

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Forward-Looking GPR Imaging with Near-Optimal 3-D Synthetic Array

Wang, J. (author), Yarovoy, Alexander (author)

In this paper, we propose an Elevation-Radial scanned Synthetic Aperture Radar (E-RadSAR) for forward-looking ground penetrating radar (GPR) imaging. The E-RadSAR exploits the advantages of both RadSAR and Elevation-Circular SAR (E-CSAR) by utilizing the SAR technique in the cross- and down-range directions for signal acquisition. It could be...

conference paper 2019