摘要:
The present invention provides new and structurally diverse compositions comprising compounds of the general formula: ##STR1## wherein A is N or CR.sub.1, R.sub.1 is hydrogen, C.sub.1 -C.sub.8 alkyl, or C.sub.6 -C.sub.10 aryl, where the alkyl or aryl group may be optionally substituted with one or more hydroxy, C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 hydroxyalkyl, C.sub.1 -C.sub.8 alkoxy, C.sub.6 -C.sub.10 aryl, C.sub.6 -C.sub.10 hydroxyaryl, C.sub.6 -C.sub.10 aryloxy, --CO.sub.2 R.sub.2, --CONR.sub.3 R.sub.4, or NR.sub.3 R.sub.4 ; R.sub.2 -R.sub.7 are as defined within; g, h, i, j, k and m may be the same or different and are an integer from one to about six; X is --CO.sub.2 H, --PO.sub.3 H.sub.2, --SO.sub.3 H or --CONHOH.Methods for imaging including MRI, X-ray and radiation diagnosis using compositions of the invention are also provided.
摘要:
The present invention provides new and structurally diverse compositions for diagnostic imaging comprising compounds of the general formula: ##STR1## wherein A is N or CR.sub.1, R.sub.1 is hydrogen, C.sub.1 -C.sub.8 alkyl, or C.sub.6 -C.sub.10 aryl, where the alkyl or aryl group may be optionally substituted with one or more hydroxy, C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 hydroxyalkyl, C.sub.1 -C.sub.8 alkoxy, C.sub.6 -C.sub.10 aryl, C.sub.6 -C.sub.10 hydroxyaryl, C.sub.6 -C.sub.10 aryloxy, --CO.sub.2 R.sub.2, --CONR.sub.3 R.sub.4, or NR.sub.3 R.sub.4 ; D is O, --O(CH.sub.2).sub.2 O--, --O(CH.sub.2).sub.3 O--, or NR.sub.5 ; E is O, --O(CH.sub.2).sub.2 O--, --O(CH.sub.2).sub.3 O-- or NR.sub.6 ; F is O, --O(CH.sub.2).sub.2 O--, --O(CH.sub.2).sub.3 O-- or NR.sub.7 ; R.sub.2 -R.sub.7 are as defined within; g, h, i, j, k and m may be the same or different and are an integer from one to about six; X is --CO.sub.2 H, --PO.sub.3 H.sub.2, --SO.sub.3 H or --CONHOH.
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:
Treated apatite particles are disclosed for enhancing medical diagnostic imaging such as magnetic resonance imaging ("MRI"), magnetic resonance spectroscopy ("MRS"), magnetic resonance spectroscopy imaging (37 MRSI"), X-ray diagnostic imaging, and ultrasound imaging. Novel coating and manufacturing techniques are disclosed to control particle size and particle aggregation resulting in compositions for organ specific imaging of the liver, spleen, gastrointestinal tract, or tissue disease states is obtained. Depending on the diagnostic imaging technique, apatite particles are treated to be paramagnetic, radiopaque, or echogenic. The apatite particles may also be fluorinated to form stable fluoroapatite compositions useful for .sup.19 F imaging. Also disclosed are diagnostic compositions and methods of performing medical diagnostic procedures which involve administering to a warm-blooded animal a diagnostically effective amount of the abovedescribed apatite particles and then performing the medical diagnostic procedure.
摘要:
Treated calcium/oxyanion-containing particles are disclosed for enhancing medical diagnostic imaging such as magnetic resonance imaging ("MRI"), magnetic resonance spectroscopy ("MRS"), magnetic resonance spectroscopy imaging ("MRSI"), X-ray diagnostic imaging, and ultrasound imaging. Novel coating and manufacturing techniques are disclosed to control particle size and particle aggregation resulting in compositions for organ specific imaging of the liver, spleen, or tissue disease states is obtained. Depending on the diagnostic imaging technique, calcium/oxyanion-containing particles are treated to be paramagnetic, radiopaque, or echogenic. Also disclosed are diagnostic compositions and methods of performing medical diagnostic procedures which involve administering to a warm-blooded animal a diagnostically effective amount of the above-described particles and then performing the medical diagnostic procedure.
摘要:
Methods and compositions are disclosed for enhancing .sup.19 F magnetic resonance imaging which utilize trifluorometyl derivatives of iodinated X-ray contrast media. Typical magnetic resonance contrast media within the scope of the present invention include bis(trifluoromethyl)benzene derivatives, tris(trifluoromethyl)benzene derivatives, tetrakis(trifluoromethyl)benzene derivatives, and other related trifluoromethylated benzene derivatives.
摘要:
Treated apatite particles are disclosed for enhancing radical diagnostic imaging such as magnetic resonance imaging ("MRI"), magnetic resonance spectroscopy ("MRS"), magnetic resonance spectroscopy imaging ("MRSI"), X-ray diagnostic imaging, and ultrasound imaging. Novel coating and manufacturing techniques are disclosed to control particle size and particle aggregation resulting in compositions for organ specific imaging of the liver, spleen, gastrointestinal tract, or tissue disease states is obtained. Depending on the diagnostic imaging technique, apatite particles are treated to be paramagnetic, radiopaque, or echogenic. The apatite particles may also be fluorinated to form stable fluoroapatite compositions useful for .sup.19 F imaging. Also disclosed are diagnostic compositions and methods of performing medical diagnostic procedures which involve administering to a warm-blooded animal a diagnostically effective amount of the abovedescribed apatite particles and then performing the medical diagnostic procedure.
摘要:
Treated calcium/oxyanion-containing particles are disclosed for enhancing medical diagnostic imaging such as magnetic resonance imaging ("MRI"), magnetic resonance spectroscopy ("MRS"), magnetic resonance spectroscopy imaging ("MRSI"), X-ray diagnostic imaging, and ultrasound imaging. Novel coating and manufacturing techniques are disclosed to control particle size and particle aggregation resulting in compositions for organ specific imaging of the liver, spleen, or tissue disease states is obtained. Depending on the diagnostic imaging technique, calcium/oxyanion-containing particles are treated to be paramagnetic, radiopaque, or echogenic. Also disclosed are diagnostic compositions and methods of performing medical diagnostic procedures which involve administering to a warm-blooded animal a diagnostically effective amount of the above-described particles and then performing the medical diagnostic procedure.
摘要:
Methods and compositions are disclosed for enhancing .sup.19 F magnetic resonance imaging which utilize trifluoromethyl derivatives of iodinated X-ray contrast media. Typical magnetic resonance contrast media within the scope of the present invention include bis(trifluoromethyl)benzene derivatives, tris(trifluoromethyl)benzene derivatives, tetrakis(trifluoromethyl)benzene derivatives, and other related trifluoromethylated benzene derivatives.
摘要:
Treated apatite particles are disclosed for enhancing medical diagnostic imaging such as magnetic resonance imaging ("MRI"), magnetic resonance spectroscopy ("MRS"), magnetic resonance spectroscopy imaging ("MRSI"), X-ray diagnostic imaging, and ultrasound imaging. Novel coating and manufacturing techniques are disclosed to control particle size and particle aggregation resulting in compositions for organ specific imaging of the liver, spleen, gastrointestinal tract, or tissue disease states is obtained. Depending on the diagnostic imaging technique, apatite particles are treated to be paramagnetic, radiopaque, or echogenic. The apatite particles may also be fluorinated to form stable fluoroapatite compositions useful for .sup.19 F imaging. Also disclosed are diagnostic compositions and methods of performing medical diagnostic procedures which involve administering to a warm-blooded animal a diagnostically effective amount of the above-described apatite particles and then performing the medical diagnostic procedure.