摘要:
Methods and diagnostic compositions are disclosed for enhancing magnetic resonance imaging which utilize a paramagnetic metal cluster. Magnetic resonance contrast media containing Z+[Mn.sub.12 X.sub.12 (OYR).sub.16 (L).sub.4 ], where OYR is an oxyacid such as benzoic acid, acetic acid, methyl sulphonic acid, methyl phosphonic acid; L is a neutral donor such as water, alcohol, pyridine, or other amines; X is a chalcogen, such as O or S; and Z is a pharmaceutically acceptable counterion are disclosed. Z may also be a paramagnetic counter ion, such as a high spin metal cluster. The paramagnetic cluster may optionally be complexed or conjugated to a carrier compound capable of altering the paramagnetic metal cluster's biodistribution, increasing its selectivity of tumor localization, and amplifying its proton relaxivity.
摘要:
Injection systems and related methods including an injection device, an operator interface, and modules to determine operational parameters during an MRA imaging procedure. Such parameters may be used to optimize and/or maximize signal intensity during an MRA imaging procedure. The injection system may include a target in-bloodstream contrast agent concentration determination module that determines a target in-bloodstream contrast agent concentration at least partially based on contrast agent type and MRA imager parameters. The injection system may include a contrast agent injection rate determination module that determines a contrast agent injection rate at least partially based on the target in-bloodstream contrast agent concentration, an initial contrast agent concentration, and a cardiac output rate of a patient to be imaged. The injection system may include a diluent injection rate determination module that determines a diluent injection rate at least partially based on the contrast agent injection rate.
摘要:
A compound comprising a metal chelate linked to a hexose carrier for use as a metallopharmaceutical diagnostic or therapeutic agent is provided. The compound is suitable for imaging by single-photon emission computed tomography, computer assisted tomography, magnetic resonance spectroscopy, magnetic resonance imaging, positron emission tomography, fluorescence imaging or x-ray.
摘要:
Injection systems and related methods including an injection device, an operator interface, and modules to determine operational parameters during an MRA imaging procedure. Such parameters may be used to optimize and/or maximize signal intensity during an MRA imaging procedure. The injection system may include a target in-bloodstream contrast agent concentration determination module that determines a target in-bloodstream contrast agent concentration at least partially based on contrast agent type and MRA imager parameters. The injection system may include a contrast agent injection rate determination module that determines a contrast agent injection rate at least partially based on the target in-bloodstream contrast agent concentration, an initial contrast agent concentration, and a cardiac output rate of a patient to be imaged. The injection system may include a diluent injection rate determination module that determines a diluent injection rate at least partially based on the contrast agent injection rate.
摘要:
The present invention is directed to metal chelating conjugates for use as metallopharmaceutical diagnostic or therapeutic agents. Specifically, conjugates of the present invention include one or more carriers, a linker, and a metal coordinating moiety comprising a substituted phenyl, pyridyl, or pyrimidyl derivative.
摘要:
A method wherein structures can be assembled using blocks that form a lattice network which can be filled with a reinforcing material, said blocks being capable of serving as a permanent form that provides a finished exterior surface.
摘要:
Methods and diagnostic compositions are disclosed for enhancing magnetic resonance imaging which utilize a paramagnetic metal cluster. Magnetic resonance contrast media containing Z.sup.+ [Mn.sub.12 X.sub.12 (OYR).sub.16l (L).sub.4 ].sup.-, where OYR is an oxyacid such as benzoic acid, acetic acid, methyl sulphonic acid, methyl phosphonic acid; L is a neutral donor such as water, alcohol, pyridine, or other amines; X is a chalcogen, such as O or S; and Z is a pharmaceutically acceptable counterion are disclosed. Z may also be a paramagnetic counter ion, such as a high spin metal cluster. The paramagnetic cluster may optionally be complexed or conjugated to a carrier compound capable of altering the paramagnetic metal cluster's biodistribution, increasing its selectivity of tumor localization, and amplifying its proton relaxivity.
摘要:
Methods and compositions are disclosed for enhancing .sup.19 F magnetic resonance imaging which utilize .sup.19 F magnetic resonance contrast media having enhanced .sup.19 F relaxivity. Fluorine-containing compounds having enhanced .sup.19 F relaxation properties resulting from direct association with an unpaired spin are disclosed. The fluorine-containing compound is associated with the unpaired spin by covalent attachment of a stable free radical, by complexation of a fluorinated complexing agent with a paramagnetic metal ion, or by salt formation or charge neutralization of a paramagnetic ion.
摘要:
Improved methods for synthesizing bifunctional chelates of tetraazamacrocycle derivatives and intermediates thereof are disclosed as well as novel tetraazamacrocycle derivatives and intermediates thereof.
摘要:
Improved methods for synthesizing bifunctional chelates of tetraazamacrocycle derivatives and intermediates thereof are disclosed as well as novel tetraazamacrocycle derivatives and intermediates thereof.