System and Method For Magnetic Resonance Imaging Parametric Mapping Using Confidence Maps
First Claim
1. A method for producing a parametric map using a magnetic resonance imaging (MRI) system, the steps of the method comprising:
- a) acquiring k-space data from a subject positioned in a field-of-view using an MRI system;
b) reconstructing a series of images from the k-space data acquired in step a);
c) producing a parametric map using the series of images reconstructed in step b);
d) producing a confidence map from the k-space data, the confidence map depicting regions in the field-of-view that are affected by error sources; and
e) modifying the parametric map using the confidence map produced in step d) to identify regions in the parametric map that are affected by error sources.
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Abstract
A method for producing parametric maps using a magnetic resonance imaging (MRI) system is provided. The MRI system is used to acquire k-space data from a field-of-view. A series of images is reconstructed from the acquired k-space data, and a confidence map is produced using the k-space data. The confidence map depicts regions in the field-of-view that are affected by error sources. A parametric map is produced using the reconstructed series of images and the produced confidence map. Values in the parametric map associated with regions in the field-of-view depicted in the confidence map as being affected by error sources are not computed, thereby reducing errors in the parametric map.
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Citations
12 Claims
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1. A method for producing a parametric map using a magnetic resonance imaging (MRI) system, the steps of the method comprising:
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a) acquiring k-space data from a subject positioned in a field-of-view using an MRI system; b) reconstructing a series of images from the k-space data acquired in step a); c) producing a parametric map using the series of images reconstructed in step b); d) producing a confidence map from the k-space data, the confidence map depicting regions in the field-of-view that are affected by error sources; and e) modifying the parametric map using the confidence map produced in step d) to identify regions in the parametric map that are affected by error sources. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for producing a parametric map using a magnetic resonance imaging (MRI) system, the steps of the method comprising:
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a) acquiring k-space data from a subject positioned in a field-of-view using an MRI system; b) reconstructing a series of images from the k-space data acquired in step a); c) producing a confidence map from the k-space data, the confidence map depicting regions in the field-of-view that are affected by error sources; d) producing a parametric map using the series of images reconstructed in step b) and the confidence map produced in step c); wherein values in the parametric map associated with regions in the field-of-view depicted in the confidence map as being affected by error sources are not computed. - View Dependent Claims (11, 12)
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Specification