| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8623614eec51506a11b3edcb0f8fef4f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T436-24 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-5601
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K49-1806 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K49-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K49-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K49-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R33-28 |
| filingDate |
1994-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1998-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1323273f4fbf387e601f8743365b05e3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce65ad6026eca26e8ca3a4d0ddf62e00 |
| publicationDate |
1998-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5741477-A |
| titleOfInvention |
Negative contrast agents for magnetic resonance imaging comprising barium sulfate and a clay |
| abstract |
A negative contrast agent for MRI is an aqueous suspension having a quantity of barium sulfate between 25 and 30 percent by weight and a quantity of bentonite between 2.5 and 3.5 percent by weight in which a substantial portion of the barium sulfate particles have a mean diameter of at least 10 microns. This negative contrast agent provides dark imaging in a T2 weighted pulse sequence; namely a relative signal intensity (RSI) approaching zero. It also provides a relative signal intensity (RSI) of under 30 percent of that of a reference that approximates tissue in a T1 weighted pulse sequence. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004151668-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7498018-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7591998-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009136426-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005074405-A1 |
| priorityDate |
1993-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |