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Compressed Sensing MRI with Random B1 field
[Category : - HEALTH]
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According to theory, magnetic resonance imaging (MRI) using compressed sensing can allow recovery of a sparse signal, or a signal that can be made sparse by transformations, from a highly incomplete set of samples, and thus has the potential for significant reduction in MRI scan time.
SUMMARY OF INVENTION
A method and a system for generating a magnetic resonance image of a subject. The method and system include generating a first pulse having first random data having a first amplitude and a first linear phase; applying the first pulse to the subject as an radio frequency pulse; collecting a first signal from the subject; generating a second pulse having second random data having a second amplitude and a second linear phase, wherein the second amplitude is substantially equal to the first amplitude, and wherein the second phase has a different slope from the first phase; applying the second pulse to the subject as an radio frequency pulse; collecting a second signal from the subject; and reconstructing an image of the subject.
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US 8170311
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