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US 9,285,449 B2Granted
Systems and methods for imaging and quantifying tissue magnetism with magnetic resonance imaging
OwnerChunlei Liu, Wei Li +1inventors
InventorsChunlei Liu, Wei Li, Bing Wu
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Abstract
Systems and methods for imaging and quantifying tissue magnetism with magnetic resonance imaging (MRI) are disclosed. According to an aspect, a method for MRI includes using an MRI system to acquire multiple image echoes of an object. The method also includes combining the image echoes. Further, the method includes generating an image of the object based on the combined image echoes for depicting a characteristic of the object.
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Claims14
A method for magnetic resonance imaging (MRI), the method comprising:
- using an MRI system to acquire a plurality of image echoes of an object at a plurality of echo times;
- combining the plurality of image echoes using a weighted averaging technique;
- generating an image of the object based on the combined image echoes for depicting a characteristic of the object;
- and
- applying a varying-radius spherical mean value (SMV) filtering technique to separate tissue phase from background phase;
- and wherein the radius of the sphere decreases towards the edges of the object, and
- wherein the filtering technique is conducted in a frequency domain.
4 more elements
A magnetic resonance imaging (MRI) system comprising:
- an MRI device configured to acquire a plurality of image echoes of an object at a plurality of echo times;
- and
- an image generator configured to:
- combine the plurality of image echoes using a weighted averaging technique;
- generate an image of the object based on the combined image echoes for depicting a characteristic of the object;
- and
- apply a varying-radius spherical mean value (SMV) filtering technique to separate tissue phase from background phase;
- and wherein the radius of the sphere decreases towards the edges of the object, and
- wherein the filtering technique is conducted in a frequency domain.
6 more elements
Dependencies are inferred from the claim text.