Localization of magnetic particles by means of swift-MRI
First Claim
Patent Images
1. A system comprising:
- a magnetic resonance scanner; and
a processor coupled to the scanner and configured to generate magnetic resonance (MR) image data, the MR image data including complex data having a first component and a second component for a subject, the processor configured to generate a first image using the first component and generate a second image using the second component, the MR image data acquired in a time-share mode and substantially simultaneous with excitation, the excitation including a short T2 sensitive sequence provided by the scanner, and wherein the first image corresponds to anatomy of the subject and the second image corresponds to a magnetic material within the subject, the first image different from the second image, and the processor configured to identify a position of the magnetic material within the subject based on the second image.
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Abstract
Positive contrast localization of magnetic (e.g. superparamagnetic) particles in vivo or in vitro by means of SWIFT-MRI using the imaginary component of MR image data in combination with an anatomic reference image derived from the real or magnitude component.
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Citations
19 Claims
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1. A system comprising:
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a magnetic resonance scanner; and a processor coupled to the scanner and configured to generate magnetic resonance (MR) image data, the MR image data including complex data having a first component and a second component for a subject, the processor configured to generate a first image using the first component and generate a second image using the second component, the MR image data acquired in a time-share mode and substantially simultaneous with excitation, the excitation including a short T2 sensitive sequence provided by the scanner, and wherein the first image corresponds to anatomy of the subject and the second image corresponds to a magnetic material within the subject, the first image different from the second image, and the processor configured to identify a position of the magnetic material within the subject based on the second image. - View Dependent Claims (2, 3, 4)
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5. A method comprising:
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labeling cells of a specimen with a magnetic particle; generating magnetic resonance (MR) image data for the specimen using swept frequency excitation and substantially simultaneous signal acquisition in a time-shared mode, the MR image data including a first component and a second component; generating a first image using the first component and generating a second image using the second component, the first image corresponding to an anatomical image of the specimen, the first image different from the second image; and detecting the labeled cells using the second image and using the first image. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A method comprising:
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labeling a tissue of a specimen of interest with a magnetic contrast agent; generating magnetic resonance (MR) image data for the specimen of interest utilizing a short T2 sensitive MR imaging sequence, the sequence including swept frequency excitation and the image date acquired substantially simultaneous with excitation, the data including a first component and a complementary component, wherein the first component corresponds to an anatomical image of the specimen; using the data to form a second image corresponding to the complementary component and corresponding to the magnetic contrast agent; and detecting the labeled tissue using the second image. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification