Results 201 to 210 of about 866,631 (263)
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Veterinary Clinics of North America: Small Animal Practice, 1993
Pharmacologic development and clinical use of nonionic low osmolality contrast agents have lowered incidences of contrast reactions. Exclusive use of these agents may be limited owing to their high costs. Ionic high osmolality agents still provide reliable means of positive contrast enhancement, and minimal problems with reactions have been experienced
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Pharmacologic development and clinical use of nonionic low osmolality contrast agents have lowered incidences of contrast reactions. Exclusive use of these agents may be limited owing to their high costs. Ionic high osmolality agents still provide reliable means of positive contrast enhancement, and minimal problems with reactions have been experienced
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Basic Research in Cardiology, 2008
Molecular imaging is a rapidly growing field with the potential to revolutionize cardiovascular medicine by shifting diagnostic focus from functional abnormalities which occur late in a disease process to the biochemical events which precipitate the earliest stages of disease.
Emily A, Waters, Samuel A, Wickline
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Molecular imaging is a rapidly growing field with the potential to revolutionize cardiovascular medicine by shifting diagnostic focus from functional abnormalities which occur late in a disease process to the biochemical events which precipitate the earliest stages of disease.
Emily A, Waters, Samuel A, Wickline
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CONTRAST AGENTS IN NEUROIMAGING
Neuroimaging Clinics of North America, 1994Until there is total elimination of adverse reactions and side effects with contrast agents, there will continue to be a need for improvement. The ideal contrast agent should be efficacious, safe, water soluble, with chemical and heat stability, biologically inert, with low viscosity, with osmolality the same as human serum, with selective excretion by
S E, Byrd, C F, Darling, E, Allen
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Contrast agents and mechanisms
Drug Discovery Today: Technologies, 2011MRI contrast agents are routinely used in clinical settings. Important advances in their design have been attained in the past few years to overcome sensitivity issues and to make possible molecular imaging applications by means of this modality. Besides the sensitivity enhancement of paramagnetic relaxation probes, outstanding results have been ...
Dastrú Walter +2 more
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Contrast agent nephrotoxicity: comparison of ionic and nonionic contrast agents
American Journal of Roentgenology, 1987The effects on glomerular and proximal tubular function of an ionic contrast agent (sodium meglumine diatrizoate) and a nonionic agent (iopamidol) were compared in 34 patients with normal renal function. The patients received large doses (2.5 ml/kg body weight) of contrast material for IV digital subtraction angiography. Urine samples, collected before,
STACUL F +5 more
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Materials Science and Engineering: C, 2013
Contrast agents are divided into two categories. The first one is paramagnetic compounds, including lanthanides like gadolinium, which mainly reduce the longitudinal (T1) relaxation property and result in a brighter signal. The second class consists of super-paramagnetic magnetic nanoparticles (SPMNPs) such as iron oxides, which have a strong effect on
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Contrast agents are divided into two categories. The first one is paramagnetic compounds, including lanthanides like gadolinium, which mainly reduce the longitudinal (T1) relaxation property and result in a brighter signal. The second class consists of super-paramagnetic magnetic nanoparticles (SPMNPs) such as iron oxides, which have a strong effect on
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Contrast Agents in diagnostic ultrasound
Ultrasound in Medicine & Biology, 1989We review the field of contrast agents in diagnostic ultrasound. The progress in the development of various classes of contrast agents such as free and encapsulated gas bubbles, colloidal suspensions, emulsions, and aqueous solutions is described. The mechanisms for production of backscatter contrast, as well as attenuation contrast and speed of sound ...
J, Ophir, K J, Parker
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Magnetoliposomes as Contrast Agents
2003Publisher Summary Liposomes are entirely biocompatible and are recognized as promising microvehicles for therapeutics and diagnostics in vivo and host either polar drugs in their aqueous inner space or lipophilic drugs in the lipid bilayer, protecting the entrapped pharmaceuticals from potential inactivation by external factors and without ...
Jeff W, Bulte, Marcel, De Cuyper
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Contrast Agents: Magnetic Resonance
2008Even though the intrinsic magnetic resonance imaging (MRI) contrast is much more flexible than in other clinical imaging techniques, the diagnosis of several pathologies requires the involvement of contrast agents (CAs) that can enhance the difference between normal and diseased tissues by modifying their intrinsic parameters.
Burtea, Carmen +3 more
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