Results 241 to 250 of about 2,804,406 (287)
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Impact of ultrasound enhancing agents on clinical management
Current Opinion in Cardiology, 2022Purpose of review Ultrasound enhancing agents (UEAs), microbubbles which are composed of lipid or albumin shells containing high molecular weight gases with nonlinear acoustic properties in the ultrasound field, are important components of the diagnostic armamentarium in echocardiography.
Ariane M, Fraiche, Jordan B, Strom
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Contemporary Safety of Ultrasound Enhancing Agents in a Nationwide Analysis
Journal of the American Heart AssociationBackground Ultrasound enhancing agents (UEAs) are an important diagnostic tool for transthoracic or stress echocardiography (TTE/SE) but recent concerns have been raised about their safety in reports from individual health systems.
Jordan B Strom, Sharon L Mulvagh
exaly +4 more sources
Nanoscaled ultrasound contrast agents for enhanced sonothrombolysis
Colloids and Surfaces B: Biointerfaces, 2018Sonothrombolysis, the enhancement of thrombolysis with ultrasound (US), is widely used in clinical practice. The use of an ultrasound contrast agent can lead to a further reduced recanalization time of the occluded blood vessel and thus to better outcome for the patient.
J. Brüßler +6 more
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Developing an electrically sensitive ultrasound enhancing agent
2021In this work, a novel class of ultrasound enhancing agent (UEA) is developed and characterized in vitro and in vivo. This novel class of UEA combines phase change agents (PCAs) and a nested architecture to create a nested PCA (NPCA). PCAs are sub-micron liquid spheres encapsulated by a surfactant coating that acoustically vaporize, becoming echogenic ...
Michael Cimorelli, Steven P. Wrenn
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Mayo Clinic Proceedings Innovations, Quality & Outcomes, 2023 To determine whether ultrasound enhancing agent (UEA) changes maximal wall thickness (WT) in hypertrophic cardiomyopathy (HCM), and if it improves correlation with magnetic resonance imaging (MRI).A total of 107 patients with HCM were prospectively enrolled at a single tertiary referral center between July 10, 2014, and August 31, 2017, and underwent ...
Chadi Ayoub, Thomas Foley
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Enhancement of ultrasound contrast agent in High-Intensity focused ultrasound ablation
Advances in Therapy, 2006High-intensity focused ultrasound (HIFU) is becoming an increasingly attractive modality for ablation. Enhancement of HIFU is an important issue that has been discussed and investigated worldwide. Ultrasound contrast agents are considered to constitute an efficient medium for changing acoustic characteristics and improving energy deposition in the ...
Wen, Luo +6 more
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Image enhancement by acoustic conditioning of ultrasound contrast agents
Ultrasound in Medicine & Biology, 2004A novel contrast imaging technique has been developed for use with microbubble contrast agents. It employs two acoustic fields: there is an excitation field for conditioning microbubbles and an imaging field for detecting microbubbles. The maximum increases (due to microbubble conditioning) in scattered first and second harmonic signals were 14.5 and ...
William T, Shi +5 more
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Ultrasound contrast agents to enhance and monitor therapy
The Journal of the Acoustical Society of America, 2001New techniques for the assessment of tissue perfusion and the local delivery of drugs have been developed using ultrasound contrast agents. A perfusion estimator, based on the destruction and wash-in of ultrasound contrast agents, has been developed and applied to tumor models.
Katherine Ferrara +5 more
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Ultrasound-induced cell lysis and sonoporation enhanced by contrast agents
The Journal of the Acoustical Society of America, 1999The enhancement of ultrasound-induced cell destruction, lysis, and sonoporation in low cell concentration suspensions (2×105/mL) by the presence of contrast agents (gas bubble to cell ratio=230) was demonstrated using cervical cancer cells (HeLa S3) suspensions containing micron-size denatured albumin microspheres filled with air (Albunex®) or ...
M, Ward, J, Wu, J F, Chiu
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Enhanced ultrasound detection with temperature-dependent contrast agents
The Journal of the Acoustical Society of America, 2007Methods and devices for enhanced ultrasound detection based upon changing temperature and ultrasound reflectivity of a temperature-dependent contrast agent bound to an ultrasound target are disclosed. The methods and devices can be used for enhanced imaging alone or in conjunction with drug delivery, with therapeutic approaches such as hyperthermia or ...
LANZA GREGORY M +2 more
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