ultrasound

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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Automated In Vivo Sub-Hertz Analysis of Viscoelasticity (SAVE) for Evaluation of Breast Lesions
Author(s)3: Mahdi Bayat, Alireza Nabavizadeh, Viksit Kumar, Adriana Gregory, Michael Insana, Azra Alizad, Mostafa Fatemi
Automated In Vivo Sub-Hertz Analysis of Viscoelasticity (SAVE) for Evaluation of Breast Lesions 170 177 IEEE Transactions on Biomedical Engineering (TBME)

Many breast tumors found by palpation manifest as stiff masses. The stiffness of tumor is related to a mechanical property known as elasticity. Elastography methods use tissue elasticity as a…

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Automated Compression Device for Viscoelasticity Imaging

Automated Compression Device for Viscoelasticity Imaging
Author(s)3: Alireza Nabavizadeh, Randall R. Kinnick, Mahdi Bayat, carolinaamador, Matthew W. Urban, Azra Alizad, Mostafa Fatemi
Automated Compression Device for Viscoelasticity Imaging 170 177 IEEE Transactions on Biomedical Engineering (TBME)

Such a device should be lightweight, portable and easy to use for patient studies to capture tissue dynamics under external stress. We present the design of an automated compression device…

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