MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD
First Claim
1. A magnetic resonance imaging apparatus comprising a processing circuitry configured to:
- estimate transmission inhomogeneity caused in a transmit RF magnetic field from a first image based on a first reception signal received by a whole-body coil, and estimate reception inhomogeneity caused in a receive RF magnetic field from the first image and a second image based on a second reception signal received by a surface coil;
generate a third image, having a resolution higher than a resolution of the first image and a resolution of the second image, based on a third reception signal received by the surface coil; and
correct the third image by using the estimated transmission inhomogeneity and reception inhomogeneity.
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Accused Products
Abstract
According to one embodiment, a magnetic resonance imaging apparatus includes processing circuitry. The processing circuitry estimates transmission inhomogeneity caused in a transmit RF magnetic field from a first image based on a first signal received by a whole-body coil, and estimates reception inhomogeneity caused in a receive RF magnetic field from the first image and a second image based on a second signal received by a surface coil. The processing circuitry generates a third image, having a resolution higher than a resolution of the first image and a resolution of the second image, based on a third signal received by the surface coil. The processing circuitry corrects the third image by using the estimated transmission inhomogeneity and reception inhomogeneity.
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Citations
20 Claims
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1. A magnetic resonance imaging apparatus comprising a processing circuitry configured to:
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estimate transmission inhomogeneity caused in a transmit RF magnetic field from a first image based on a first reception signal received by a whole-body coil, and estimate reception inhomogeneity caused in a receive RF magnetic field from the first image and a second image based on a second reception signal received by a surface coil; generate a third image, having a resolution higher than a resolution of the first image and a resolution of the second image, based on a third reception signal received by the surface coil; and correct the third image by using the estimated transmission inhomogeneity and reception inhomogeneity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A magnetic resonance imaging method comprising:
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estimating transmission inhomogeneity caused in a transmit RF magnetic field from a first image based on a first reception signal received by a whole-body coil, and estimating reception inhomogeneity caused in a receive RF magnetic field from the first image and a second image based on a second reception signal received by a surface coil; generating a third image, having a resolution higher than a resolution of the first image and a resolution of the second image, based on a third reception signal received by the surface coil; and correcting the third image by using the estimated transmission inhomogeneity and reception inhomogeneity. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification