http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3640661-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_53c911e75ea09dd4c2705db5306dae77 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-055 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-446 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-56518 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-385 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R33-3875 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R33-565 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R33-3875 |
| filingDate | 2018-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e038d81b3d326c7de107b174d652ecfd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab7d17af8c447fcdeff28ca45fc59914 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ff585d73688456874530611196072bd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c676283fd3f30ca3a6935dd83a96d8dc |
| publicationDate | 2020-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3640661-A1 |
| titleOfInvention | Method and control unit for active compensation of eddy current induced magnetic fields in magnetic resonance imaging |
| abstract | The invention describes a method for compensation of eddy current (E1, E2, E3) induced magnetic fields (MF) in a magnetic resonance imaging system (1), comprising the steps:- providing an MR-sequence (M) comprising a number of gradients (G),- providing a dataset (D) comprising values of the amplitude and the time constant of eddy current (E1, E2, E3) fields of a number of gradients (G) on at least one gradient axis,- defining a number of points in time (PT1, PT2) within the time period of the MR-sequence (M),- calculating a number of constant currents (S1, S2, S3) for a number of coils (11) of the magnetic resonance imaging system (1) based on the dataset (D), wherein the number of constant currents (S1, S2, S3) is designed to compensate magnetic fields (MF) induced by eddy currents (E1, E2, E3) of the gradients (G) of the MR-sequence (M) at least at one defined point in time (PT1, PT2),- applying the calculated number of constant currents (S1, S2, S3) on the related coils (11) prior or during the application of the MR-sequence (M) or a section of the MR-sequence.The invention further describes a related control unit and a magnetic resonance imaging system. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113219391-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113219391-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102020200786-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11402454-B2 |
| priorityDate | 2018-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID962 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419512635 |
Total number of triples: 26.