Magnetic resonance imaging of blood volume
US5509412A · kind A · utility
30Cited by
4References
5Claims
0Family size
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Key dates
| Filing date | Aug 24, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Aug 24, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5616
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An MRI system acquires a series of images over a course of time using an echo planar imaging pulse sequence. A susceptibility contrast agent is injected into the subject during the scan to momentarily reduce NMR signal strength from voxels with blood flow. A nonlinear regression parameter estimation process is employed to calculate blood volume at each voxel directly from the acquired NMR data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.