Results 11 to 20 of about 19,521 (265)
Biosensors, 2023 The noninvasive estimation of interstitial fluid pressure (IFP) using ultrasound contrast agent (UCA) microbubbles as pressure sensors will provide tumor treatments and efficacy assessments with a promising tool.
Yun Wang +9 more
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Photoacoustics, 2017 We demonstrate a versatile phase-change sub-micron contrast agent providing three modes of contrast enhancement: 1) photoacoustic imaging contrast, 2) ultrasound contrast with optical activation, and 3) ultrasound contrast with acoustic activation.
Shengtao Lin +8 more
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Acoustic response of compliable microvessels containing ultrasound contrast agents [PDF]
Physics in Medicine and Biology, 2006 The existing models of the dynamics of ultrasound contrast agents (UCAs) have largely been focused on an UCA surrounded by an infinite liquid. Preliminary investigations of a microbubble's oscillation in a rigid tube have been performed using linear perturbation, under the assumption that the tube diameter is significantly larger than the UCA diameter.
Shengping, Qin, Katherine W, Ferrara
openaire +2 more sources
Acoustic bubble sorting of ultrasound contrast agents
Proceedings of Meetings on Acoustics, 2013 Ultrasound contrast agents resonate to the driving pressure pulse transmitted by the clinical ultrasound system. These systems operate at a narrow bandwidth optimized for the ultrasound transducer. Due to the large size distribution of commercially available UCA only a small selection of bubbles contribute to the echo signal.
Michel Versluis, Tim Segers
+5 more sources
Determining the influence of endoskeleton friction on the damping of pulsating antibubbles
Current Directions in Biomedical Engineering, 2022 Recent in-vivo work showed the suitability of Pickering-stabilized antibubbles in harmonic imaging and ultrasound-guided drug delivery. To date, however, theoretical considerations of antibubble core properties and their effects on antibubble dynamics ...
Anderton Nicole +3 more
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Non-linear Acoustic Emissions from Therapeutically Driven Contrast Agent Microbubbles [PDF]
Ultrasound in Medicine & Biology, 2019 Non-linear emissions from microbubbles introduced to the vasculature for exposure to focused ultrasound are routinely monitored for assessment of therapy and avoidance of irreversible tissue damage. Yet the bubble-based mechanistic source for these emissions, under subresonant driving at typical therapeutic pressure amplitudes, may not be well ...
Song, Jae Hee +2 more
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Radiation-Force Assisted Targeting Facilitates Ultrasonic Molecular Imaging
Molecular Imaging, 2004 Ultrasonic molecular imaging employs contrast agents, such as microbubbles, nanoparticles, or liposomes, coated with ligands specific for receptors expressed on cells at sites of angiogenesis, inflammation, or thrombus.
Shukui Zhao +5 more
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Acoustic Wave Sensors for Detection of Blister Chemical Warfare Agents and Their Simulants
Sensors, 2022 On-site detection and initial identification of chemical warfare agents (CWAs) remain difficult despite the many available devices designed for this type of analysis. Devices using well-established analytical techniques such as ion mobility spectrometry,
Michał Grabka +3 more
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Molecular Imaging, 2007 Encapsulated microbubble contrast agents incorporating an adhesion ligand in the microbubble shell are used for molecular imaging with ultrasound. Currently available microbubble agents are produced with techniques that result in a large size variance ...
Esra Talu +6 more
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Current Directions in Biomedical Engineering, 2022 Pickering stabilisation is a manufacturing process involving the adsorption of colloidal particles at gas-liquid interfaces. It is used to create the shells of stable, long-lived ultrasound contrast agent microbubbles. The purpose of the present study is
Anderton Nicole +6 more
doaj +1 more source