# IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

## Issue 2 • Feb. 2019

Purchase of this issue is not available.

## Filter Results

Displaying Results 1 - 19 of 19
• ### Front Cover

Publication Year: 2019, Page(s):C1 - C4
| PDF (511 KB) |  Media
• ### IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

Publication Year: 2019, Page(s): C2
| PDF (137 KB)

Publication Year: 2019, Page(s):1 - 2
| PDF (411 KB)
• ### Evaluation of Reconstruction Parameters for 2-D Comb-Push Ultrasound Shear Wave Elastography

Publication Year: 2019, Page(s):254 - 263
| | PDF (2411 KB) | HTML

Shear wave elastography (SWE) is a noninvasive ultrasound imaging modality used in the assessment of the mechanical properties of tissues such as the liver, kidney, skeletal muscle, thyroid, and the breast. Among the methods used to perform SWE is the comb-push ultrasound shear elastography method. This method uses multiple focused ultrasound beams to generate push beams with acoustic radiation fo... View full abstract»

• ### Narrowband Shear Wave Generation Using Sinusoidally Modulated Acoustic Radiation Force

Publication Year: 2019, Page(s):264 - 272
| | PDF (1417 KB) | HTML

Most transient ultrasound elastography methods use high-intensity ultrasound “push” pulses that generate a shear wave with a wide frequency spectrum. However, it is difficult to control how the energy of the wave is distributed within that spectrum. For this reason, the shear-wave group velocity may not match that of harmonic methods like magnetic resonance elastography (MRE). The objective of thi... View full abstract»

• ### Simultaneous Axial Multifocal Imaging Using a Single Acoustical Transmission: A Practical Implementation

Publication Year: 2019, Page(s):273 - 284
| | PDF (2816 KB) | HTML

Standard ultrasound imaging techniques rely on sweeping a focused beam across a field of view; however, outside the transmission focal depth, image resolution and contrast are degraded. High-quality deep tissue in vivo imaging requires focusing the emitted field at multiple depths, yielding high-resolution and high-contrast ultrasound images but at the expense of a loss in frame r... View full abstract»

• ### Analytical Minimization-Based Regularized Subpixel Shear-Wave Tracking for Ultrasound Elastography

Publication Year: 2019, Page(s):285 - 296
| | PDF (1777 KB) | HTML Media

Ultrasound elastography is a convenient and affordable method for imaging mechanical properties of tissue, which are often correlated with pathologies. An emerging novel elastography technique applies an external acoustic radiation force to generate a shear wave in the tissue and uses ultrasound imaging to track the shear wave. Accurate tracking of the small tissue motion is a critical step in she... View full abstract»

• ### Two-Stage Beamforming for Phased Array Imaging Using the Fast Hankel Transform

Publication Year: 2019, Page(s):297 - 308
| | PDF (7290 KB) | HTML

An ultrasound scan generates a huge amount of data. To form an image, this data has to be transferred to the imaging system. This is an issue for applications where the data transfer capacity is limited such as hand-held systems, wireless probes, and miniaturized array probes. Two-stage beamforming methods can be used to significantly reduce the data transfer requirements. In the first stage, whic... View full abstract»

• ### Automatic Detection of B-Lines in $In Vivo$ Lung Ultrasound

Publication Year: 2019, Page(s):309 - 317
| | PDF (2928 KB) | HTML

This paper proposes an automatic method for accurate detection and visualization of B-lines in ultrasound lung scans, which provides a quantitative measure for the number of B-lines present. All the scans used in this study were acquired using a BK3000 ultrasound scanner (BK Ultrasound, Herlev, Denmark) driving a 5.5-MHz linear transducer (BK Ultrasound). Four healthy subjects and four patients, a... View full abstract»

• ### Considerations for Choosing Sensitive Element Size for Needle and Fiber-Optic Hydrophones—Part I: Spatiotemporal Transfer Function and Graphical Guide

Publication Year: 2019, Page(s):318 - 339
| | PDF (2467 KB) | HTML

The spatiotemporal transfer function for a needle or reflectance-based fiber-optic hydrophone is modeled as separable into the product of two filters corresponding to frequency-dependent sensitivity and spatial averaging. The separable hydrophone transfer function model is verified numerically by comparison to a more general rigid piston spatiotemporal response model that does not assume separabil... View full abstract»

• ### Considerations for Choosing Sensitive Element Size for Needle and Fiber-Optic Hydrophones—Part II: Experimental Validation of Spatial Averaging Model

Publication Year: 2019, Page(s):340 - 347
Cited by:  Papers (1)
| | PDF (1008 KB) | HTML

Acoustic pressure can be measured with a hydrophone. Hydrophone measurements can underestimate incident acoustic pressure due to spatial averaging effects across the hydrophone sensitive element. The spatial averaging filter for a nonlinear focused beam is a low-pass filter that decreases monotonically from 1 to 0 as frequency increases from 0 to infinity. Experiments were performed to test an ana... View full abstract»

• ### High-Resolution Fast Ultrasound Imaging With Adaptive-Lag Filtered Delay-Multiply-and-Sum Beamforming and Multiline Acquisition

Publication Year: 2019, Page(s):348 - 358
| | PDF (11270 KB) | HTML

Multiline acquisition (MLA) is a well-established method for a high-frame-rate cardiac ultrasound imaging, which is commonly used in conjunction with delay-and-sum (DAS) beamforming. The block-like artifacts that occur secondary to the use of MLA can be reduced using interpolation of the data acquired from adjacent transmitted beams—a method called synthetic transmit beamforming (STB). A recently ... View full abstract»

• ### High-Frame-Rate Contrast-Enhanced Echocardiography Using Diverging Waves: 2-D Motion Estimation and Compensation

Publication Year: 2019, Page(s):359 - 371
| | PDF (5353 KB) | HTML Media

Combining diverging ultrasound waves and microbubbles could improve contrast-enhanced echocardiography (CEE), by providing enhanced temporal resolution for cardiac function assessment over a large imaging field of view. However, current image formation techniques using coherent summation of echoes from multiple steered diverging waves (DWs) are susceptible to tissue and microbubble motion artifact... View full abstract»

• ### Fast Flow-Line-Based Analysis of Ultrasound Spectral and Vector Velocity Estimators

Publication Year: 2019, Page(s):372 - 381
| | PDF (2939 KB) | HTML

A new technique, termed FLUST (FlowLine Ultrasound Simulation Tool), is proposed as a computationally cheap alternative to simulations based on randomly positioned scatterers for the simulation of stationary blood velocity fields. In FLUST, the flow field is represented as a collection of flow lines. Point spread functions are first calculated at regularly spaced positions along the flow lines bef... View full abstract»

• ### Analysis and Design of High-Frequency 1-D CMUT Imaging Arrays in Noncollapsed Mode

Publication Year: 2019, Page(s):382 - 393
| | PDF (3172 KB) | HTML

High-frequency ultrasound imaging arrays are important for a broad range of applications, from small animal imaging to photoacoustics. Capacitive micromachined ultrasonic transducer (CMUT) arrays are particularly attractive for these applications as low noise receiver electronics can be integrated for an overall improved performance. In this paper, we present a comprehensive analysis of high-frequ... View full abstract»

• ### The Search for BaTiO3-Based Piezoelectrics With Large Piezoelectric Coefficient Using Machine Learning

Publication Year: 2019, Page(s):394 - 401
| | PDF (3167 KB) | HTML Media

We employ a data-driven approach to search for BaTiO3-based piezoelectrics with large piezoelectric coefficient d33. Our approach uses a surrogate model to make predictions of d33 with uncertainties, followed by a design step that selects the next optimal compound to synthesize. We compare several combinations of choices of the model and design selection strategies... View full abstract»

• ### Fingerprint Imaging System Based on Capacitive Micromachined Ultrasonic Transducer by Using Impediography Method Including Direct Touch and Waveguide Methods

Publication Year: 2019, Page(s):402 - 411
| | PDF (2196 KB) | HTML

Fingerprint imaging is a powerful tool in biometric identification systems. This paper proposes a fingerprint imaging method that involves applying an impedance signal to a fingerprint via ultrasonic impediography using a capacitive micromachined ultrasonic transducer (CMUT). We fabricated CMUT sparse array which has a center frequency of 6.25 MHz and collapse voltage of 50 V by local oxidation of... View full abstract»

• ### Phase Noise and Frequency Stability of the Red-Pitaya Internal PLL

Publication Year: 2019, Page(s):412 - 416
| | PDF (1529 KB) | HTML

In field-programmable gate array platforms, the main clock is generally a low-cost quartz oscillator whose stability is of the order of $10^{-9}$ to $10^{-10}$ in the short term and $10^{-7}$ View full abstract»

• ### Motion Artifacts and Correction in Multipulse High-Frame Rate Contrast-Enhanced Ultrasound

Publication Year: 2019, Page(s):417 - 420
| | PDF (655 KB) | HTML

High-frame-rate (HFR) ultrasound (US) imaging and contrast-enhanced US (CEUS) are often implemented using multipulse transmissions, to enhance image quality. Multipulse approaches, however, suffer from degradation in the presence of motion, especially when coherent compounding and CEUS are combined. In this paper, we investigate this effect on the intensity of HFR CEUS in deep tissue imaging using... View full abstract»

## Aims & Scope

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control focuses on the theory, design, and application on generation, transmission, and detection of bulk and surface mechanical waves.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Peter A. Lewin
plewin@coe.drexel.edu