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 'Myocardial Perfusion' p3
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Searchterm 'Myocardial Perfusion' found in 15 articles
15 definitions [
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Myocardial Contrast Echocardiography
(MCE) Myocardial contrast echocardiography is a contrast enhanced ultrasound method that utilizes intravenous injected microbubbles as red blood cell tracers. MCE can assess myocardial perfusion both at rest and stress to evaluate viable myocardium after acute infarction.
MCE perfusion imaging improves the blood echoes during the microbubble passage and the imaging system suppresses the clutter represented by non-contrast-bearing tissue.

See also Injection Rate, Stress Echocardiogram, and Myomap.
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View NEWS results for 'Myocardial Contrast Echocardiography' (1).Open this link in a new window.
POINT Biomedical Corp.
www.acusphere.com [This entry is marked for removal.]

'POINT Biomedical was a privately held pharmaceutical company, founded in 1996 to pursue technologies related to imaging and drug delivery. POINT's core technology was based upon an ultrasonically responsive two-layer, biodegradable microsphere or BiSphere™. One of the most important features of this technology is the ability to noninvasively trigger the BiSpheres™ to release their contents at sites within the body using externally generated pulses of ultrasound. From this basic platform, POINT was developing a pipeline of products that leverage the unique properties of the BiSphere™ technology in the areas of imaging and therapeutics. POINT has initially focused development of this platform on the assessment of tissue specific blood flow. The lead product, CARDIOsphere®, is a pharmaceutical agent that will enable cardiologists to perform myocardial perfusion imaging studies in the office setting using ultrasound rather than more expensive and cumbersome nuclear medicine (or radioisotope) techniques.'
'According to BioSpace, Tom Feldman, ex-CEO of Point BioMedical, the company's lead investor, Vendanta Capital has chosen not to follow through with the second half of its $50 million private equity financing. Point BioMedical has withdrawn the new drug application for its molecular imaging agent CARDIOsphere and is liquidating its assets to avoid a formal bankruptcy proceeding in 2008.'

Pulse Inversion Doppler
Selective detection of the microbubble contrast medium can be enhanced by Doppler processing that removes signals with zero Doppler frequency shifts. This will remove tissue harmonics. By detecting overlong bursts of inverted pulses and using Doppler detection methods, very high sensitivity to microbubbles can be achieved. The bubbles can be detected at sufficiently low incident power levels to avoid destroying them. Pulse inversion Doppler has demonstrated the first real-time images of myocardial perfusion using perfluorocarbon gas agents.

See also Pulse Inversion Imaging, Myocardial Contrast Echocardiography, and Perfluorochemicals.
Quantison
Quantison, consisting of air-filled microbubbles with stiff and rigid human serum albumin shells, is an investigational ultrasound contrast agent for the assessment of coronary artery disease.
The stiff shell inhibits the bubbles from oscillating and decrease non-linear scattering. Quantison is capable of long lasting cavity contrast and myocardial opacification using intermittent imaging.
Drug Information and Specification
RESEARCH NAME
AIP101
DEVELOPER
Andaris Ltd. (acquired by Quadrant)
INDICATION -
DEVELOPMENT STAGE
APPLICATION
Intravenous injection
TYPE
Microbubble
Human serum albumin
CHARGE
-
Air
MICROBUBBLE SIZE
-
PREPARATION
Reconstitute with water
DO NOT RELY ON THE INFORMATION PROVIDED HERE, THEY ARE
NOT A SUBSTITUTE FOR THE ACCOMPANYING PACKAGE INSERT!
Sonazoid™
Sonazoid™ is an ultrasound contrast agent (UCA) consisting of stabilized gas microbubbles in an aqueous suspension. Sonazoid™ has overcome the stability problems of first generation USCA and can produce myocardial perfusion images. Myocardial imaging using ultrasound contrast agents provides diagnosis of chronic heart disease and assessment of the coronary arteries and of the coronary blood flow reserve.
Sonazoid™ is taken up by healthy Kupffer cells in the liver and spleen, but break down in high amplitude ultrasound imaging modes such as color Doppler imaging. The bubble rupture produces a transient pressure wave, which results in a characteristic mosaic color pattern from tissues containing the microbubbles (induced acoustic emission). Liver tumors without Kupffer cells will not display the mosaic pattern and can therefore be identified easily.
Drug Information and Specification
RESEARCH NAME
NC100100
DEVELOPER
INDICATION -
DEVELOPMENT STAGE
Development in USA and EU suspended
APPLICATION
-
TYPE
Microbubble
Lipid Stabilized (not disclosed)
CHARGE
Negative
Perfluorobutane
MICROBUBBLE SIZE
-
PRESENTATION
-
STORAGE
-
PREPARATION
Reconstitute with 2mL water
DO NOT RELY ON THE INFORMATION PROVIDED HERE, THEY ARE
NOT A SUBSTITUTE FOR THE ACCOMPANYING PACKAGE INSERT!
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 [last update: 2023-11-06 01:42:00]