Results 271 to 280 of about 148,145 (314)

Ultrasound contrast agents for echocardiography

Drugs of Today, 2000
There is a need to monitor perfusion of the microcirculation in patients with minimal invasive approaches. The recent development of ultrasound contrast agents may open such an opportunity and permit to visualize online perfusion of cardiac muscle and other organs.
T, Yasu, G W, Schmid-Schönbein
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[Ultrasound contrast agents].

Journal de radiologie, 2000
Ultrasound contrast agents are introducing a new vision to ultrasonography. The increase in the Doppler signal intensity improves difficult examinations. Technical failures in the study of transcranial, liver and renal vessel might be rescued with the injection of these new compounds.
J, Correas, M, Claudon, F, Lefèvre, O, Hélénon, F, Cattin, V, Vilgrain   +5 more
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Safety of ultrasound contrast agents

European Radiology, 2005
The use of ultrasound contrast agents has increased over recent years. The Contrast Media Safety Committee (CMSC) of the European Society of Urogenital Radiology (ESUR) decided to review the safety of ultrasound contrast agents in humans and to draw up guidelines. A comprehensive literature search and review was carried out.
Jarl A, Jakobsen, Raymond, Oyen, Henrik S, Thomsen, Sameh K, Morcos   +3 more
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Ultrasound Contrast Agents For Ultrasound Molecular Imaging

Zeitschrift für Gastroenterologie, 2014
Ultrasound is a real-time imaging technique which is widely used in many clinical applications for its capacity to provide anatomic information with high spatial and temporal resolution. The advent of ultrasound contrast agents in combination with contrast-specific imaging modes has given access to perfusion assessments at an organ level, leading to an
F, Tranquart, M, Arditi, T, Bettinger, P, Frinking, J M, Hyvelin, A, Nunn, S, Pochon, I, Tardy   +7 more
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Ultrasound Contrast Agents and Ultrasound Molecular Imaging

Journal of Nanoscience and Nanotechnology, 2014
Ultrasound imaging in combination with microbubble contrast agents has demonstrated its potential for molecular imaging of vascular targets. In this article, we systematically review the technologies related to ultrasound molecular imaging. First, we introduce the basic principles of ultrasound molecular imaging. Then, we discuss ultrasound microbubble
Qiaonong, Wen, Suiren, Wan, Zengli, Liu, Shuang, Xu, Hairui, Wang, Biao, Yang   +5 more
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Standard Properties of Ultrasound Contrast Agents

Ultrasound in Medicine & Biology, 1998
A standardization procedure for in vitro acoustic characterization of ultrasound contrast agents is presented. One new acoustic parameter for particular importance is retained: This is STAR, scattering-to-attenuation ratio, for quantification of the effectiveness of the contrast agent. The STAR expresses the ability of the contrast agent to enhance the
Bouakaz, A, Jong, Nico, Cachard, C
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Ultrasound Contrast Agents

2011
Ultrasound is a real time imaging technique which has traditionally been used for small-animal imaging mainly for its capacity to provide anatomical information with high spatial and temporal resolution. The advent of ultrasound contrast agents and of contrast-specific imaging modes has dramatically increased the importance of ultrasound imaging in ...
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Ultrasound contrast agents: clinical applications

European Radiology, 2001
Ultrasound contrast agents (USCA) for intravenous injections are usually gas-filled microbubbles with a mean diameter less than that of a red blood corpuscle. There are only a few products on the market at the time of this writing, but several companies have various agents under development.
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Ultrasound Contrast Agents

2010
Ultrasound contrast agents : , Ultrasound contrast agents : , کتابخانه دیجیتال جندی شاپور ...
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Ultrasound contrast agents: An overview

European Journal of Radiology, 2006
With the introduction of microbubble contrast agents, diagnostic ultrasound has entered a new era that allows the dynamic detection of tissue flow of both the macro and microvasculature. Underpinning this development is the fact that gases are compressible, and thus the microbubbles expand and contract in the alternating pressure waves of the ...
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