Three-dimensional image display device creating three-dimensional image directly from projection data
First Claim
Patent Images
1. A method comprising:
- determining a region of interest of a body in relation to a CT scan;
selecting a set of sample points within the region of interest based on expected contributions of said sample points to a subsequent volume rendering process;
using the projection data to generate CT values for the sample points; and
applying said volume rendering process to the CT values to create a three-dimensional image.
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Abstract
An imaging device accesses projection data collected by a medical imaging system during a scan of a body. The imaging device uses the projection data directly to render an image of a region of interest of the body.
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Citations
23 Claims
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1. A method comprising:
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determining a region of interest of a body in relation to a CT scan; selecting a set of sample points within the region of interest based on expected contributions of said sample points to a subsequent volume rendering process; using the projection data to generate CT values for the sample points; and applying said volume rendering process to the CT values to create a three-dimensional image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system to generate three-dimensional images of features of a body, the system comprising:
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a machine-readable storage facility to store projection data collected by CT scanning of a body; an image reconstruction processing device to identify a three-dimensional region of interest in the body, to select a plurality of samples points within the region of interest based on expected contributions of the sample points to a subsequent volume rendering process, and to use the projection data to generate a set of CT values for the sample points; and a three-dimensional image processing device to generate a three-dimensional image of the region of interest, based on the CT values. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An imaging device to create three-dimensional images, the device comprising:
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means for connecting with an X-ray CT device equipped with a mechanism to collect projection data by X-ray scanning; means for storing the projection data; means for determining a region of interest; means for selecting a set of sample points within the region of interest based on expected contributions of said sample points to a subsequent volume rendering process; means for using the projection data to generate CT values for the sample points; and means for applying said volume rendering process to the CT values to create a three-dimensional image. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification