http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111407278-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-4318 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-055 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B5-026 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B5-055 |
| filingDate | 2020-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111407278-B |
| titleOfInvention | Method and device for measuring placental blood flow by using flow velocity compensated and uncompensated diffusion magnetic resonance |
| abstract | The invention discloses a method and a device for measuring placental blood flow by using flow velocity compensated and uncompensated dispersive magnetic resonance. The method comprises the following steps: firstly, constructing a diffusion weighting sequence of flow velocity compensation (FC) through a bipolar gradient field with the same polarity based on a spin echo diffusion weighting sequence; secondly, constructing a diffusion weighting sequence of non-flow-rate compensation (NC) by using a bipolar gradient field with mirror symmetry of polarity; then measuring the multi-b value intra-voxel uncorrelated motion (IVIM) signals for the maternal placenta using FC and NC sequences, respectively; and finally, establishing an FC-NC combined model, fitting and estimating the proportion and the flow rate of the ballistic blood microcirculation flow and the diffusivity of tissue water. Compared with the IVIM imaging mode which is used conventionally in clinic, the method refines ballistic components and diffusive components in microcirculation blood flow, provides a new IVIM quantitative index, and can quantitatively explain the functions of two microcirculation in placenta in a fetus-placenta perfusion system. |
| priorityDate | 2020-03-31-04:00^^<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: 16.