MRI apparatus combining diffusion weighted imaging and diffusion tensor imaging of one or more slices for efficient selective substitution and extraction
First Claim
1. A magnetic resonance imaging (MRI) apparatus comprising:
- an image display device configured to display a plurality of diffusion weighted images of respective axes corresponding to one slice;
a designation operating device configured to enable an operator to designate each diffusion weighted image targeted for rephotograph from the displayed diffusion weighted images;
a diffusion weighted imaging device configured to rephotograph only the axis of each diffusion weighted image designated by the operator to generate a rephotographed diffusion weighted image;
a diffusion weighted image substituting device configured to generate a set of post-substitution diffusion weighted images by substituting each designated diffusion weighted image with each rephotographed diffusion weighted image; and
a diffusion tensor image creating device configured to create a diffusion tensor image from the set of post-substitution diffusion weighted images.
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Accused Products
Abstract
An MRI apparatus includes: an image display device for displaying diffusion weighted images of respective axes corresponding to one slice; a designation operating device for allowing an operator to designate each diffusion weighted image targeted for rephotograph from the displayed diffusion weighted images of axes; a diffusion weighted imaging device for rephotographing only the axis of each diffusion weighted image designated by the operator; a diffusion weighted image substituting device for substituting an original diffusion weighted image with each diffusion weighted image obtained at the diffusion weighted photography; and a diffusion tensor image creating device for creating a diffusion tensor image from a set of the post-substitution diffusion weighted images.
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Citations
20 Claims
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1. A magnetic resonance imaging (MRI) apparatus comprising:
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an image display device configured to display a plurality of diffusion weighted images of respective axes corresponding to one slice; a designation operating device configured to enable an operator to designate each diffusion weighted image targeted for rephotograph from the displayed diffusion weighted images; a diffusion weighted imaging device configured to rephotograph only the axis of each diffusion weighted image designated by the operator to generate a rephotographed diffusion weighted image; a diffusion weighted image substituting device configured to generate a set of post-substitution diffusion weighted images by substituting each designated diffusion weighted image with each rephotographed diffusion weighted image; and a diffusion tensor image creating device configured to create a diffusion tensor image from the set of post-substitution diffusion weighted images. - View Dependent Claims (2, 3, 4)
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5. A magnetic resonance imaging (MRI) apparatus comprising:
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an abnormal image extracting device configured to extract an abnormal image from diffusion weighted images of respective axes corresponding to one slice; a diffusion weighted imaging device configured to rephotograph only the axis of the extracted diffusion weighted image to generate a rephotographed diffusion weighted image; a diffusion weighted image substituting device configured to generate a post-substitution diffusion weighted image by substituting the extracted diffusion weighted image with each the rephotographed diffusion weighted image; and a diffusion tensor image creating device configured to create a diffusion tensor image from the post-substitution diffusion weighted image. - View Dependent Claims (6, 7)
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8. A magnetic resonance imaging (MRI) apparatus comprising:
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a selection operating device configured to enable an operator to select a diffusion tensor image targeted for rephotograph from a plurality of diffusion tensor images of one or more slices; an image display device configured to display a plurality of diffusion weighted images of respective axes corresponding to the selected diffusion tensor image; a designation operating device configured to enable the operator to designate a diffusion weighted image targeted for rephotograph from the displayed diffusion weighted images of axes; a diffusion weighted imaging device configured to rephotograph only the axis of the diffusion weighted image designated by the operator to generate a rephotographed diffusion weighted image; a diffusion weighted image substituting device configured to generate a post-substitution diffusion weighted image by substituting the designated diffusion weighted image with the rephotographed diffusion weighted image; a diffusion tensor image creating device configured to create a substitute diffusion tensor image from the post-substitution diffusion weighted image; and a diffusion tensor image substituting device configured to substitute the selected diffusion tensor image with the substitute diffusion tensor image. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An MRI apparatus comprising:
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a selection operating device configured to enable an operator to select a diffusion tensor image targeted for rephotograph from a plurality of diffusion tensor images of one or more slices; an abnormal image extracting device configured to extract an abnormal diffusion weighted image from a plurality of diffusion weighted images of respective axes corresponding to the diffusion tensor image selected by the operator; a diffusion weighted imaging device configured to rephotograph only the axis of the extracted diffusion weighted image to generate a rephotographed diffusion weighted image; a diffusion weighted image substituting device configured to generate a post-substitution diffusion weighted image by substituting the extracted diffusion weighted image with the rephotographed diffusion weighted image; a diffusion tensor image creating device configured to create a substitute diffusion tensor image from the post-substitution diffusion weighted image; and a diffusion tensor image substituting device configured to substitute the selected diffusion tensor image with the substitute diffusion tensor image. - View Dependent Claims (15, 16)
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17. An MRI apparatus comprising:
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an abnormal image extracting device configured to extract an abnormal diffusion tensor image from a plurality of diffusion tensor images of one or more slices and to extract an abnormal diffusion weighted image from a plurality of diffusion weighted images of respective axes corresponding to the extracted abnormal diffusion tensor image; a diffusion weighted imaging device configured to rephotograph only the axis of the extracted diffusion weighted image to generate a rephotographed diffusion weighted image; a diffusion weighted image substituting device configured to generate a post-substitute diffusion weighted image by substituting the extracted diffusion weighted image with the rephotographed diffusion weighted image; a diffusion tensor image creating device configured to create a substitute diffusion tensor image from the post-substitution diffusion weighted image; and a diffusion tensor image substituting device configured to substitute the selected diffusion tensor image with the substitute diffusion tensor image. - View Dependent Claims (18, 19, 20)
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Specification