X-ray scanning system
First Claim
1. An X-ray imaging system for generating a three-dimensional tomographic image of an object that is positioned within an imaging volume comprising:
- a detector array comprising a plurality of rings of detector elements, each of said rings encompassing said volume, wherein said detector array has a clear slot extending along a length of said detector array anda stationary X-ray source comprising an anode with a plurality of source points, wherein each of said source points are aligned with said clear slot,wherein said detector elements detect X-rays from the source points which have passed through the slot and the imaging volume, and wherein data from the detector array can be used to produce said three dimensional tomographic image of said object within the imaging volume.
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Accused Products
Abstract
An X-ray scanner comprises an array (12) of X-ray detectors (16) arranged in cylindrical configuration around an imaging volume (28), and a multi-focus X-ray source (20) which extends in a helical configuration around the outside of the detector array (12). A helical gap (24) in the detector array (12) allows X-rays from the source (20) to pass through the patient (26) in the imaging volume (28), and onto the detectors (16) on the opposite side of the scanner. The source (20) is controlled so that the X-rays are produced from a number of source points along the helical locus (23) to produce a tomographic image. As the patient is stationary and the source point varied electrically, the scanning rate is sufficient to produce a series of images which can be displayed as a real time three-dimensional video image.
356 Citations
9 Claims
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1. An X-ray imaging system for generating a three-dimensional tomographic image of an object that is positioned within an imaging volume comprising:
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a detector array comprising a plurality of rings of detector elements, each of said rings encompassing said volume, wherein said detector array has a clear slot extending along a length of said detector array and a stationary X-ray source comprising an anode with a plurality of source points, wherein each of said source points are aligned with said clear slot, wherein said detector elements detect X-rays from the source points which have passed through the slot and the imaging volume, and wherein data from the detector array can be used to produce said three dimensional tomographic image of said object within the imaging volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification