Magnetic resonance imaging using technique of positioning multi-slabs to be imaged
First Claim
1. A magnetic resonance imaging system in which an object to be imaged is subjected to scanning to obtain an MR image, the scanning being applied to a three-dimensional region of the object previously located on previously obtained tomographic positioning images of the object, the system comprising:
- a displaying unit configured to display two tomographic images of the object as pre-scan positioning images, each of the two tomographic images including a target of interest thereon, the two tomographic images intersecting each other;
an inputting unit configured to enable an operator to specify a plurality of points along the target on each of the two tomographic images;
an approximating unit configured to calculate an approximated three-dimensional curve passing through a plurality of virtual points determined by the plurality of operator-specified points on each of the two tomographic images; and
a locating unit configured to locate a region to be imaged by using the calculated approximated curve.
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Abstract
A magnetic resonance imaging system is provided for obtaining MR images by scanning a region of the object previously located on an object'"'"'s positioning image. The system comprises a displaying unit, inputting unit, approximating unit, and locating unit. The displaying unit displays a plurality of tomographic images of the object as the positioning image, each of the tomographic images including an indication of a target of interest thereon. The inputting unit enables information about a running state of the target in a direction along the target to be supplied toward each of the tomographic images. The approximating unit calculates three-dimensionally an approximated curve indicating the running state of the target in the direction on the basis of the supplied information about the running state. The locating unit locates the region substantially perpendicular to the approximated curve.
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Citations
20 Claims
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1. A magnetic resonance imaging system in which an object to be imaged is subjected to scanning to obtain an MR image, the scanning being applied to a three-dimensional region of the object previously located on previously obtained tomographic positioning images of the object, the system comprising:
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a displaying unit configured to display two tomographic images of the object as pre-scan positioning images, each of the two tomographic images including a target of interest thereon, the two tomographic images intersecting each other; an inputting unit configured to enable an operator to specify a plurality of points along the target on each of the two tomographic images; an approximating unit configured to calculate an approximated three-dimensional curve passing through a plurality of virtual points determined by the plurality of operator-specified points on each of the two tomographic images; and a locating unit configured to locate a region to be imaged by using the calculated approximated curve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20)
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9. A method for planning a region of an object to be scanned by magnetic resonance imaging, the region of the object being previously located on previously obtained tomographic positioning images of the object, the method using at least one programmed MRI system computer, comprising:
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displaying two tomographic images of the object as the positioning image, each of the tomographic images including a target of interest thereon, the two tomographic images intersecting each other; enabling an operator to specify a plurality of points along the target on each of the two tomographic images; calculating an approximated three-dimensional curve passing through a plurality of virtual points determined by the plurality of operator-specified points on each of the two tomographic images; and locating a region to be imaged by using the calculated approximated curve. - View Dependent Claims (18)
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Specification