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Dynamic adaptation of a dephasing gradient pair
US8975893B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8975893-B2 |
| Application number | US-201213451956-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 20, 2012 |
| Priority date | Apr 21, 2011 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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In a method for optimization of a flow coding with switching of an additional bipolar dephasing gradient pair, used in a magnetic resonance (MR) phase contrast angiography, the strength of the flow coding is selected depending on the flow velocity in the vessels that should be depicted. MR signals of an examination region are acquired with continuously running overview measurements, with an operator-selected flow coding strength. After the selected flow coding strength is adopted automatically for the next measurement of the continuously running overview measurements, and two partial measurements with different flow codings are implemented for each selected strength and a phase difference image from the two partial measurements is calculated and depicted in real time, and the selected flow coding strength is automatically adopted for the MR phase contrast angiography.
First claim
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We claim as our invention: 1. A method for optimization of flow coding in magnetic resonance phase contrast angiography, comprising: via a control unit, operating a magnetic resonance data acquisition unit to acquire magnetic resonance data from at least a portion of a patient in the data acquisition unit by continuously implementing a plurality of overview measurements in succession, and in each overview measurement, acquiring magnetic resonance data with a pulse sequence that co…
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- G01R33/56316Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US8975893B2 cover?
- In a method for optimization of a flow coding with switching of an additional bipolar dephasing gradient pair, used in a magnetic resonance (MR) phase contrast angiography, the strength of the flow coding is selected depending on the flow velocity in the vessels that should be depicted. MR signals of an examination region are acquired with continuously running overview measurements, with an ope…
- Who is the assignee on this patent?
- Greiser Andreas, Speier Peter, Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification G01R33/56316. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).