Accelerated pseudo-random data magnetic resonance imaging system and method
First Claim
1. A magnetic resonance imaging method, comprising:
- performing a magnetic resonance imaging data acquisition of a subject of interest to obtain a set of magnetic resonance data;
performing parallel imaging reconstruction on the set of magnetic resonance data to generate an initial image, the set of magnetic resonance data comprising data acquired in a time frame of interest and having a non-uniform sampling pattern on a predefined area of a data space; and
storing and displaying the initial image.
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Abstract
The present disclosure is intended to describe embodiments for improving image data acquisition and processing in accelerated dynamic magnetic resonance imaging sequences. One embodiment is described where a method includes an acquisition sequence configured to acquire an undersampled set of magnetic resonance data. The undersampled set of magnetic resonance data has a pseudo-random sampling pattern within a data space acquired at a first time, the pseudo-random sampling pattern being influenced by other pseudo-random sampling patterns within the data space arising from the acquisition of additional undersampled sets of magnetic resonance data at respective times. In some embodiments, the pseudo-random sampling patterns of the undersampled sets of magnetic resonance data interleave to yield a desired sampling pattern.
83 Citations
22 Claims
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1. A magnetic resonance imaging method, comprising:
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performing a magnetic resonance imaging data acquisition of a subject of interest to obtain a set of magnetic resonance data; performing parallel imaging reconstruction on the set of magnetic resonance data to generate an initial image, the set of magnetic resonance data comprising data acquired in a time frame of interest and having a non-uniform sampling pattern on a predefined area of a data space; and storing and displaying the initial image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A magnetic resonance imaging method, comprising:
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performing a magnetic resonance acquisition sequence comprising; defining a uniform undersampling pattern comprising locations that are to be sampled and locations that are to be left unsampled on at least a portion of a phase encoding plane of a data space; acquiring an undersampled set of magnetic resonance data representative of a feature of a subject of interest using a non-uniform undersampling pattern on the defined uniform undersampling pattern; and generating an image based upon the undersampled set of magnetic resonance data for storage and display. - View Dependent Claims (13, 14)
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15. A magnetic resonance imaging method comprising:
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performing a magnetic resonance imaging data acquisition of a subject of interest to obtain an undersampled set of magnetic resonance data; performing multiplicative constrained reconstruction on the undersampled set of magnetic resonance data acquired within a timeframe of interest to generate a desired image; wherein the data comprises an undersampling pattern having locations that are sampled and locations that are not sampled along a phase encoding plane of a data space. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification