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A Study of Bubble Activity Generated in Ex Vivo Tissue by High Intensity Focused Ultrasound

James McLaughlan, Ian Rivens, Timothy Leighton, Gail ter Haar
2010 Ultrasound in Medicine and Biology  
to a lithotripter shock wave.  ...  Radial response of individual Smith SW. The scientist and engineer’s guide to digital signal process- bubbles subjected to shock wave lithotripsy pulses in vitro.  ... 
doi:10.1016/j.ultrasmedbio.2010.05.011 pmid:20691922 fatcat:fcb2ejbr4jccpkxggusth5d4ou

An Investigation Into The Use Of Cavitation For The Optimisation Of High Intensity Focused Ultrasound (Hifu) Treatments

James Ross McLaughlan, G R Ter Haar, I Rivens
2008 Zenodo  
There is, however, a lack of understanding of HIFU generated cavitation activity in tissue.  ...  Passive and active cavitation detection techniques have been combined to give a system for use in HIFU fields.  ...  Another hypothesis investigated was that non-linear propagation of the HIFU field generated superharmonics that were absorbed more readily in the tissue.  ... 
doi:10.5281/zenodo.1311683 fatcat:rofrsktyezfivhoslph7od7d2i

Application of acoustic droplet vaporization in ultrasound therapy

Yufeng Zhou
2015 Journal of Therapeutic Ultrasound  
In an acoustic field, liquefied gas nanoparticles may be able to change the state and become the gas form in a few cycles of exposure without significant heating effects.  ...  Microbubbles have been used widely both in the ultrasonic diagnosis to enhance the contrast of vasculature and in ultrasound therapy to increase the bioeffects induced by bubble cavitation.  ...  HIFU ablation Because of the much lower acoustic impedance of gaseous bubbles in comparison to the surrounding soft tissue, transformation of ultrasonic pressure waves to thermal energy is much more efficient  ... 
doi:10.1186/s40349-015-0041-8 pmid:26566442 pmcid:PMC4642755 fatcat:hwrunbmto5fuxd36b4kj5fj64i

Program Book

2008 2008 IEEE Ultrasonics Symposium  
(Abstract ID: 590) • Talk #1.4 (1H-3): *Hiroshi Kanai (Presenter), **Junya Ohkohchi, and **Hideyuki Hasegawa, "Ultrasonic Imaging of 3-Dimensional Propagation of Electric Excitation and Vibrations in Human  ...  Beijing, China November 2-5, 2008 1H-3 Ultrasonic Imaging of 3- Dimensional Propagation of Electric Excitation and Vibrations in Human Heart 9:15 am Hiroshi Kanai 1 2 , Junya Ohkohchi  ...  1K-3 Double-Beam Diffraction-Grating Transducers for Improved Blood Flow Measurement David Vilkomerson; DVX, Princeton, NJ, USA. 2K-3 Investigation of Sound Speed Errors in Adaptive Beamforming 6K  ... 
doi:10.1109/ultsym.2008.2013 fatcat:blhyzvy55je6ne7e4npjomcd4u

Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications

Sepand Tehrani Fateh, Lida Moradi, Elmira Kohan, Michael R Hamblin, Amin Shiralizadeh Dezfuli
2021 Beilstein Journal of Nanotechnology  
The field of theranostics has been rapidly growing in recent years and nanotechnology has played a major role in this growth.  ...  These effects can result in the release of encapsulated drugs or genes at the site of interest as well as cell death and considerable image enhancement.  ...  Conflict of Interests ORCID ® iDs Sepand Tehrani Fateh -https://orcid.org/0000-0003-2842-0480 Michael R. Hamblin -https://orcid.org/0000-0001-6431-4605  ... 
doi:10.3762/bjnano.12.64 pmid:34476167 pmcid:PMC8372309 fatcat:uomvxzd3unhwpcbtvov66o3iry

Duration modeling with hidden Markov models

L. F. M. ten Bosch, X. Wang, L. C. W. Pols
1993 Journal of the Acoustical Society of America  
., A variety of broadband Arctic seismoacoustic wave phenomena are demonstrated using laboratory ultrasonic modeling techniques introduced by the author in the mid 1970s to study the generation, propagation  ...  The generic findings are applicable to ocean bottom interacting acoustic waves, nondestructive testing, and ultrasonic imaging. [Work supported by DREP and ONR.] lpAOS.  ...  Acoustic wave propagation in gaseous argon has been investigated using a high-power ultrasonic gated-tone-burst transmission system.  ... 
doi:10.1121/1.407916 fatcat:6oae5i4nxva63mnleko5dr3acm

Three-dimensional point-cloud room model in room acoustics simulations

Milos Markovic, So/ren K. Olesen, Dorte Hammersho/i
2013 Journal of the Acoustical Society of America  
In vivo, the ultrasonic wave first propagates through soft tissues that can be idealized as a homogeneous fluid. Then, the ultrasonic wave interacts with the bone structure.  ...  With this solution, the resonances in non-propagating waves were investigated.  ...  As illustrative examples, the energybased MCMC algorithms are applied to the problem of filter design as used in human head-related transfer functions and in acoustic impedance boundaries within the finite-difference  ... 
doi:10.1121/1.4806371 fatcat:ln4w6j7cjvchrckf2gzfmeiwoi

Grafting acoustic instruments and signal processing: Creative control and augmented expressivity

Dan Overholt
2013 Journal of the Acoustical Society of America  
In the spirit of the text Concert Halls and Opera Houses by L.  ...  In addition, various measurement techniques for this type of space are explored and reported. 9:15 1aAA2. The effect of two different rooms on acoustical and perceptual measures of mixed choir sound.  ...  ), cavitation occurs in soft tissue, which behaves in a viscoelastic fashion.  ... 
doi:10.1121/1.4830794 fatcat:2sexsmbypjcozjctnorzoiy7te

Microbulles et cellules acoustiques

Michiel Postema
2017 Zenodo  
, University of Bergen and Christian Michelsen Research AS.  ...  Acknowledgements This work has been supported by DFG Emmy Noether Programme (grant no. 38355133) and Engineering and Physical Sciences Research Council (EPSRC) (grant no. EP/F037025/1).  ...  Stomach and intestine were avoided in all cases to ensure propagation only through soft tissue, to ensure delivery of the aimed ultrasound intensity at the desired area.  ... 
doi:10.5281/zenodo.4770898 fatcat:fyi3wieylzfx5haxhrj7es5gmm

Ultrasound-Responsive Cavitation Nuclei for Therapy and Drug Delivery

Klazina Kooiman, Silke Roovers, Simone A.G. Langeveld, Robert T. Kleven, Heleen Dewitte, Meaghan A. O'Reilly, Jean-Michel Escoffre, Ayache Bouakaz, Martin D. Verweij, Kullervo Hynynen, Ine Lentacker, Eleanor Stride (+1 others)
2020 Ultrasound in Medicine and Biology  
The mechanical oscillations of circulating microbubbles, the most widely investigated cavitation nuclei, which may also encapsulate or shield a therapeutic agent in the bloodstream, trigger and promote  ...  This review summarizes recent investigations that have elucidated interactions of ultrasound and cavitation nuclei with cells, the treatment of tumors, immunotherapy, the blood-brain and blood-spinal cord  ...  Conflict of interest disclosure-The authors declare no conflict of interest.  ... 
doi:10.1016/j.ultrasmedbio.2020.01.002 pmid:32165014 fatcat:pd3sf4vbdjenjp77tiafiaibqi

Table of Contents

2020 2020 IEEE International Ultrasonics Symposium (IUS)  
1765: Shear Shocks Are Focused in Human Head Phantoms: Shear Wave Imaging and Simulations Bharat Tripathi{2}, Sandhya Chandrasekaran{1}, Gianmarco Pinton{2} {1}North Carolina State University, United  ...  : Poster AM -Elastography of Muscles Session Chair(s): Stefan Catheline (INSERM, LabTAU) 04:15 AM 1443: Acoustoelasticity in Transverse Isotropic Soft Tissues: Quantification of Muscles' Nonlinear Elasticity  ... 
doi:10.1109/ius46767.2020.9251713 fatcat:nzjz2g5cgrbs7ikrkqajtvb24a

Ultrasound Contrast Agent Modeling: A Review

Michel Versluis, Eleanor Stride, Guillaume Lajoinie, Benjamin Dollet, Tim Segers
2020 Ultrasound in Medicine and Biology  
walls or tissue.  ...  Ultrasound is extensively used in medical imaging, being safe and inexpensive and operating in real time.  ...  scan of soft tissue was realized (Howry 1952) .  ... 
doi:10.1016/j.ultrasmedbio.2020.04.014 pmid:32546411 fatcat:4p3jmvnidvgjrfcw7eonh5z4de

Experimental investigations of the fluid dynamics of vitreoretinal surgery

IRENE NEPITA
2021
Aim of this part is to investigate to what extent biomolecules present in the aqueous solution can modify the rheological properties of the interface between the two fluids and, in turn, facilitate the  ...  The second part is related to the characterisation of the interfacial rheology between SOs and aqueous solutions containing endogenous proteins released by the ocular tissue as a response to an inflammatory  ...  Ringrazio con amore Giorgio, per essere stato un perfetto complice in ogni tappa di questo percorso, come in tutte le nostre avventure di vita.  ... 
doi:10.15167/nepita-irene_phd2021-06-08 fatcat:wep3wipvwvccjpkhf7vo5w4hlu