Dual contrast vessel wall MRI using phase sensitive polarity maps
US9557396B2 · kind B2 · utility
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Key dates
| Filing date | Apr 1, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Apr 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5607
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems for using magnetic resonance (MR) imaging include obtaining a T1-weighted MR image and a proton-density (PD) weighted MR image from a dual-image acquisition following an inversion-recovery (IR) pulse. The T1-weighted and PD-weighted images are used to obtain a polarity function describing a positive or negative polarity at individual voxels, which is used to reconstruct a polarity-enhanced PD-weighted image from the PD-weighted image. The polarity-enhanced PD-weighted image can be used for assessing at least plaque burden and juxtaluminal calcification (JCA).
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