http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2017042500-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b017d90a74a3ad34390f0e971fcedd4e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01T1-1647 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-037 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01T7-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-582 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B6-4258 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B6-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B6-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01T7-00 |
| filingDate | 2016-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0584229420e9005d4bd56031cca5449 |
| publicationDate | 2017-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2017042500-A1 |
| titleOfInvention | Method and apparatus for sensitivity calibration |
| abstract | A detector of a gamma camera is configured such that a radioactive point source is positioned within a field of view at a fixed distance from the detector. A predetermined number of gamma photons emitted by the point source and passed through a collimator are acquired. A system-specific planar sensitivity is computed for a combination of the collimator and detector using the number of gamma photons acquired, a time duration of the acquisition, and precalibrated radioactivity data of the point source corrected for decay that occurred after a precalibration time. A deviation of the computed system-specific planar sensitivity from a class standard sensitivity value for a combination of the radioactive point source, the collimator, and the detector is computed. A class standard sensitivity value for a combination of a radiopharmaceutical, the collimator, and the detector is scaled by the computed deviation, yielding a scaled system-specific sensitivity value for the radiopharmaceutical. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110440715-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11096648-B2 |
| priorityDate | 2013-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.