Method for representation of flow in a magnetic resonance image
US7336072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2006 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Aug 5, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/563
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method for representation of flow in a magnetic resonance image, a first magnetic resonance image of an examination subject is acquired, wherein the flow occurring in the examination subject is not compensated in a first spatial direction; a second magnetic resonance image is acquired, wherein the flow occurring in the first spatial direction is compensated, the phase of the magnetization in each of the first and the second magnetic resonance images is calculated of the phase difference between the first phase image and the second phase image, which is calculated is a measure for the flow along the first spatial direction. A third magnetic resonance image is acquired, wherein the flow in a second spatial direction perpendicular to the first spatial direction is not compensated, and a fourth magnetic resonance image is acquired, wherein the flow occurring in the second spatial direction is compensated. The phase in each of the third and fourth magnetic resonance images is calculated and the phase difference between the third and fourth phase images is calculated, which is a measure of the flow along the second spatial direction. A resulting flow velocity vector is calculated by…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.