Magnetic resonance imaging method to non-invasively measure blood oxygen saturation
US11026606B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jan 26, 2017 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Sep 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5602
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods for data acquisition and processing of magnetic resonance (MR) imaging to obtain the oxygen saturation (O2sat) of blood using a relationship between transverse relaxation time (T2) of blood and oxygen saturation. The method includes obtaining multiple images at various T2 preparation times. Next, non-linear curve fitting may be used to solve for arterial or venous O2sat. The disclosure provides a calibration-free method for accurate quantitative assessment of blood in the heart and deep vessels, even in locations having limited accessibility with other diagnostic techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.