ultrasound

Coordinate-Independent 3-D Ultrasound Principal Stretch and Direction Imaging

Coordinate-Independent 3-D Ultrasound Principal Stretch and Direction Imaging
Coordinate-Independent 3-D Ultrasound Principal Stretch and Direction Imaging 789 444 IEEE Transactions on Biomedical Engineering (TBME)
This study is the first in cardiac elastography to manipulate 3-D principal stretch and direction information to identify myocardial anomalies, potentially revolutionizing how clinicians visualize and interpret myocardial deformations. read more
Advancing the local Pulse Wave Velocity Measurement – Wave Confluence Decomposition using a Double Gaussian Propagation Model

Advancing the local Pulse Wave Velocity Measurement – Wave Confluence Decomposition using a Double Gaussian Propagation Model
Advancing the local Pulse Wave Velocity Measurement – Wave Confluence Decomposition using a Double Gaussian Propagation Model 786 444 IEEE Transactions on Biomedical Engineering (TBME)
The Double Gaussian Propagation Model advances waveform modeling to enable local pulse wave velocity measurements (clinical marker of arterial stiffness) by accounting for confluence of forward and reflected arterial waves. read more
Nonlinear Frequency Mixing Ultrasound Imaging of Nanoscale Contrast Agents

Nonlinear Frequency Mixing Ultrasound Imaging of Nanoscale Contrast Agents
Nonlinear Frequency Mixing Ultrasound Imaging of Nanoscale Contrast Agents 2560 1045 IEEE Transactions on Biomedical Engineering (TBME)
To improve nanobubble contrast agents’ diagnostic efficacy, we introduce a real-time ultrasound frequency mixing method that enhances nanobubble nonlinearity and amplifies their acoustic signal via a dual-frequency waveform excitation. read more
Device for multifocal delivery of ultrasound into deep brain regions in humans

Device for multifocal delivery of ultrasound into deep brain regions in humans
Device for multifocal delivery of ultrasound into deep brain regions in humans 1349 703 IEEE Transactions on Biomedical Engineering (TBME)
This article develops a device for targeted neurointerventions using low-intensity ultrasonic waves. The device overcomes the acoustic complexities of the human skull and the limited targeting precision of existing tools. read more
A Review of Low-cost Ultrasound Compatible Phantoms

A Review of Low-cost Ultrasound Compatible Phantoms
A Review of Low-cost Ultrasound Compatible Phantoms 789 444 IEEE Transactions on Biomedical Engineering (TBME)
This review paper compiles research on low-cost ultrasound-compatible phantoms. Cost, accessibility, physical characteristics of component materials and their applications for spine, prostate, vascular, breast, kidney, and liver phantoms are discussed. read more
Integrated Ultrasound and Photoacoustic-guided Laser Ablation Theranostic Endoscopic System

Integrated Ultrasound and Photoacoustic-guided Laser Ablation Theranostic Endoscopic System
Integrated Ultrasound and Photoacoustic-guided Laser Ablation Theranostic Endoscopic System 789 444 IEEE Transactions on Biomedical Engineering (TBME)
A novel photoacoustic-guided theranostic Intracardiac endoscopic system was designed and developed. The developed system offers significant advantages, such as accurate monitoring of thermal lesion formation and real-time thermometry. read more

Transcranial Focused Ultrasound Stimulation of Periaqueductal Gray for Analgesia
Transcranial Focused Ultrasound Stimulation of Periaqueductal Gray for Analgesia 789 444 IEEE Transactions on Biomedical Engineering (TBME)
The transcranial focused ultrasound (tFUS) stimulation can achieve the effect of analgesia, and provides new insights into the development of non-invasive analgesic technology in the future. read more

Pulse Arrival Time Segmentation into Cardiac and Vascular Intervals – Implications for Pulse Wave Velocity and Blood Pressure Estimation
Author(s)3: Fabian Beutel, Chris Van Hoof, Xavier Rottenberg, Koen Reesink, Evelien Hermeling
Pulse Arrival Time Segmentation into Cardiac and Vascular Intervals – Implications for Pulse Wave Velocity and Blood Pressure Estimation 461 480 IEEE Transactions on Biomedical Engineering (TBME)
Pulse wave velocity (PWV) is a pressure-dependent marker of arterial stiffness, wherefore pulse arrival time (PAT) has been widely investigated for cuff-less blood pressure (BP) estimation. However, PAT is typically biased by a cardiac delay and peripheral vasculature. Therefore, we demonstrate an ultrasound-based method for central PAT segmentation into cardiac isovolumic contraction (IVC) and vascular pulse transit time (PTT). Contrasting peripheral PAT, central PTT-based PWV explained more than twice as much variability in the reference PWV and yielded significantly lower BP estimation errors. Thereby this unilateral arterial stiffness assessment bears the potential to improve cardiovascular risk assessment in clinical routines. read more

Video Magnification Applied in Ultrasound
Author(s)3: Vincent Perrot, Sébastien Salles, Didier Vray, Hervé Liebgott
Video Magnification Applied in Ultrasound 170 177 IEEE Transactions on Biomedical Engineering (TBME)

Biological tissues such as the myocardium or the artery walls are subject to fast and complex phenomena which are related to their physical properties (geometry, composition, stiffness, etc.) as well…

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Real-Time Blood Pressure Estimation From Force-Measured Ultrasound

Real-Time Blood Pressure Estimation From Force-Measured Ultrasound
Author(s)3: Aaron M. Zakrzewski, Athena Y. Huang, Rebecca Zubajlo, Brian W. Anthony
Real-Time Blood Pressure Estimation From Force-Measured Ultrasound 170 177 IEEE Transactions on Biomedical Engineering (TBME)

Common techniques to measure blood pressure include an arterial catheter, an oscillometric pressure cuff, or an auscultatory pressure cuff. Oscillometric and auscultatory cuffs have an associated error, cannot be used…

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