Special Issue "Acoustics in Biomedical Engineering"

A special issue of Acoustics (ISSN 2624-599X).

Deadline for manuscript submissions: 31 March 2019

Special Issue Editors

Guest Editor
Dr. Fardin Khalili

Department of Mechanical Engineering, Embry-Riddle Aeronautical University, Daytona Beach, FL 32826, USA
Website | E-Mail
Interests: structural acoustics and vibration; bioacoustics and sound in biological systems; CFD and FSI; flow-induced vibration and acoustics
Guest Editor
Dr. Amirtahà Taebi

Department of Biomedical Engineering, University of California, Davis, Davis, CA 95616, USA
Website | E-Mail
Interests: biomedical signal and image processing; noninvasive physiological monitoring; medical instrumentation; machine learning
Guest Editor
Dr. Hansen A. Mansy

Department of Mechanical and Aerospace Engineering, University of Central Florida, Orlando, FL 32816, USA
Website | E-Mail
Interests: vibrational and acoustic phenomena in biological systems; acoustic models of soft tissues; flow induced vibrations; vibro-acoustic sensors; electromechanical systems; digital signal processing; biostatistics

Special Issue Information

Dear Colleagues,

We would like to present the very latest progress in acoustics, vibrations, and fluid–structure interactions techniques that would be a beneficial for sound analysis in biomedical applications. For biomedical applications, there are many situations such a listening to the blood flow through patients' heart valves from the chest/skin, or listening to the air flow in patients' lung airways with different levels of stenosis. In these cases, air and blood turbulent flows exist in a flow-bounded domain which interact with solid rigid/elastic/moving bodies like mechanical heart valves or tumors in lung airways.

Our aim is to publish studies that reveal how mechanical vibration and sound impact the design and performance of engineered medical devices and improve non-invasive monitoring, analysis and diagnostic techniques of biological systems. This Special Issue: “Acoustics in Biomedical Engineering”, covers research results involving the application of mechanical and electrical engineering principles with a focus on developments in numerical methods and experimental techniques. “Acoustics in Biomedical Engineering” publishes original research and review articles in a wide range of topics including, but not limited to:

  • Cardiovascular and respiratory biomechanics: mechanics of blood-flow, air-flow, mechanics of the soft tissues, flow-tissue or flow-prosthesis interactions
  • Computational methods for analyzing the performance of medical devices, artificial organs, and prostheses
  • Bioacoustics and sound in biological systems
  • Biomedical signal processing and medical device development
  • Structural acoustics and vibration
  • Engineering acoustics, sound transducers, and measurements
  • Fluid-structure Interactions and Flow-induced vibration
  • Acoustic Signal Processing

Dr. Fardin Khalili
Dr. Amirtahà Taebi
Dr. Hansen A. Mansy
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Acoustics is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) is waived for well-prepared manuscripts submitted to this issue. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Acoustics
  • Vibration
  • Sound transducers and measurements
  • Bioacoustics
  • Fluid-structure Interactions (FSI)
  • Flow-induced vibration
  • Acoustic Signal Processing

Published Papers (1 paper)

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Research

Open AccessArticle Effects of Nonlinear Propagation of Focused Ultrasound on the Stable Cavitation of a Single Bubble
Acoustics 2019, 1(1), 14-34; https://doi.org/10.3390/acoustics1010003
Received: 18 October 2018 / Revised: 21 November 2018 / Accepted: 3 December 2018 / Published: 6 December 2018
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Abstract
Many biomedical applications such as ultrasonic targeted drug delivery, gene therapy, and molecular imaging entail the problems of manipulating microbubbles by means of a high-intensity focused ultrasound (HIFU) pressure field; namely stable cavitation. In high-intensity acoustic field, bubbles demonstrate translational instability, the well-known
[...] Read more.
Many biomedical applications such as ultrasonic targeted drug delivery, gene therapy, and molecular imaging entail the problems of manipulating microbubbles by means of a high-intensity focused ultrasound (HIFU) pressure field; namely stable cavitation. In high-intensity acoustic field, bubbles demonstrate translational instability, the well-known erratic dancing motion, which is caused by shape oscillations of the bubbles that are excited by their volume oscillations. The literature of bubble dynamics in the HIFU field is mainly centered on experiments, lacking a systematic study to determine the threshold for shape oscillations and translational motion. In this work, we extend the existing multiphysics mathematical modeling platform on bubble dynamics for taking account of (1) the liquid compressibility which allows us to apply a high-intensity acoustic field; (2) the mutual interactions of volume pulsation, shape modes, and translational motion; as well as (3) the effects of nonlinearity, diffraction, and absorption of HIFU to incorporate the acoustic nonlinearity due to wave kinematics or medium—all in one model. The effects of acoustic nonlinearity on the radial pulsations, axisymmetric modes of shape oscillations, and translational motion of a bubble, subjected to resonance and off-resonance excitation and various acoustic pressure, are examined. The results reveal the importance of considering all the involved harmonics and wave distortion in the bubble dynamics, to accurately predict the oscillations, translational trajectories, and the threshold for inertial (unstable) cavitation. This result is of interest for understanding the bubble dynamical behaviors observed experimentally in the HIFU field. Full article
(This article belongs to the Special Issue Acoustics in Biomedical Engineering)
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