Method for monitoring vascular flow using magnetic resonance signals
US4991586A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1989 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Aug 15, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56316
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulse sequence is disclosed for operating a magnetic resonance system wherein a slice of the examination subject disposed perpendicularly to the flow in a vessel under examination is first selectively excited. A nuclear magnetic resonance signal is read out as an echo signal under the influence of a read-gradient disposed perpendicularly to the slice selection gradient. The signals acquired in successive steps are displayed on a time axis. In contrast to a conventional spin warp sequence, the phase coding gradient, and thus a topical resolution in one direction, are foregone, and instead a chronological resolution of the flow is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.